Term
|
Definition
[image]
Number 1 is an eyepiece. There can be one or two (bi-ocular) |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
[image]
What is number 10 |
|
Definition
|
|
Term
[image]
What is number 11 |
|
Definition
|
|
Term
[image]
What is number 12 |
|
Definition
|
|
Term
[image]
What is number 13 |
|
Definition
|
|
Term
[image]
What is number 14 |
|
Definition
|
|
Term
[image]
What is number 15 |
|
Definition
|
|
Term
[image]
What is number 16 |
|
Definition
|
|
Term
What four biotic factors affect population growth |
|
Definition
Birthrate, deathrate, Immigration & Emigration |
|
|
Term
What is exponential growth |
|
Definition
A factor of population where the larger a population grows the faster it grows. The size of each generation of offspring will be larger than the one before it. |
|
|
Term
|
Definition
when a population's growth slows and then stops, following a period of exponential growth |
|
|
Term
List four characteristics that are used to describe a population |
|
Definition
Geographic range, density & distribution, growth rate, age structure |
|
|
Term
|
Definition
Area inhabited by a population |
|
|
Term
|
Definition
Number of individualsnper unit area |
|
|
Term
If a population's size staysthe same but its geographic range decreased what would happen to its density |
|
Definition
Density would increase because there is less space for the existing ting population |
|
|
Term
The number of individuals of a single species per unit area is known as |
|
Definition
|
|
Term
What are the three patterns of populatiion distribution that describe population density |
|
Definition
Random, Uniform, & Clumped |
|
|
Term
|
Definition
How much time must pass before a generation is able to breed the next generation |
|
|
Term
|
Definition
number of males and females of each age in a population |
|
|
Term
What natural factors can change a population's size |
|
Definition
Births, immigration, deaths, & emigration |
|
|
Term
Movement of individuals into an area is called |
|
Definition
|
|
Term
Movement of individuals out of an area is called |
|
Definition
|
|
Term
An s-shaped graph represents what type of population growth |
|
Definition
Logistic Growth Curve Shape |
|
|
Term
|
Definition
Growth that occurs when a population's growth slows following a period of exponential growth and then stops at or nearthe carrying capacity |
|
|
Term
In the presence of unlimited resources and in the absence of disease and predation, what would probably happen to a bacterial populations growth |
|
Definition
|
|
Term
A population graph shaped like a "J" represents what type of population growth |
|
Definition
|
|
Term
What is it called when a population's birthrate equals its death rate |
|
Definition
|
|
Term
The maximum number of organisms of a particular species that can be supported by an environment is called |
|
Definition
|
|
Term
What is a limiting factor of population growth |
|
Definition
a factor that controls the growth of a population |
|
|
Term
A limiting factor that depends on population size is called a |
|
Definition
density dependent limiting factor |
|
|
Term
List six density dependent limiting factors |
|
Definition
competition, predation,herbivory, parasitism, disease, stress from overcrowding |
|
|
Term
What are the two categories of Density - Independent Limiting Factors |
|
Definition
Unusual Weather & Natural Disasters |
|
|
Term
List three Unusual Weather situations that cause density independent limiting |
|
Definition
Hurricanes, droughts, or floods |
|
|
Term
Describe the general trend of human population growth over time |
|
Definition
For tens of thousands of years, the human population grew very slowly. Then, about 500 years ago the population began to grow exponentially and then began to slow after the 1950's. It is still growing but more slowly than before. |
|
|
Term
Who was Thomas Malthus and what did he predict |
|
Definition
an English economist in the early 1800's who predicted that the limiting factors of human population were war (competition), limited resources (famine), and parasitism (disease). |
|
|
Term
|
Definition
scientific study of human populations |
|
|
Term
What is demographic transition |
|
Definition
when a human population transitions from high birthrates and high deathrates to low birthrates and low deathrates |
|
|
Term
what is an age structure diagram |
|
Definition
a graph that lists a population not by overall size but by age and sex. This allows a scientist to predict future population growth |
|
|
Term
|
Definition
an agricultural practice of clearing large areas of land to plant a single highly productive crop year after year |
|
|
Term
What is a renewable resource |
|
Definition
a resource that can be produced or replaced by a healthy ecosystem |
|
|
Term
What are some examples of nonrenewable resources |
|
Definition
fossiles fuels like coal, oil, and natural gas |
|
|
Term
what is sustainable development |
|
Definition
development of natural resources in a way that provide for human needs while preserving the ecosystem |
|
|
Term
|
Definition
a process caused by nonsustainable farming, overgrazing, and seasonal drought which changes farmland to desert |
|
|
Term
|
Definition
|
|
Term
|
Definition
a harmful material that can enter the biosphere |
|
|
Term
What is biological magnification |
|
Definition
When a pollutant accumulates in the tissues of a creature lower on the food chain which is then eaten by a consumer higher on the food chain resulting in higher levels of contamination at the upper levels of the food chain |
|
|
Term
|
Definition
a gray-brown haze formed by chemical reactions among pollutants released into the air by industrial processes and automobiles |
|
|
Term
|
Definition
When nitrogen and sulpher compounds released by factories and homes combines with water vapor to form nitric and sulfuric acids which are then carried by wind currents to other areas where they fall and erode living and nonliving things |
|
|
Term
|
Definition
the total of all the genetically based variation in all organisms in the biosphere |
|
|
Term
What is species diversity |
|
Definition
the number of different species in the biosphere or in a particular area |
|
|
Term
|
Definition
Single celled organisms found in salt and fresh water |
|
|
Term
What are the biological challenges that diatoms must face |
|
Definition
Reproducing, maintaining homeostasis, obtain and use matter & energy, |
|
|
Term
What are the 3 parts of cell theory |
|
Definition
All living things are made up of cells, Cells are the basic units of structure and function in living things, and New cells are produced from existing cells |
|
|
Term
|
Definition
Basic unit of all forms of life consisting of organelles enclosedby a permeable barrier |
|
|
Term
|
Definition
thin, flexible barrier that surrounds all cells Organelle that regulates what enters and leaves the cell. It consists of a lipid bilayer (two layers of fats) with proteins that float in the lipid bilayer that are used as gates |
|
|
Term
|
Definition
Organelle that contains the cell's genetic material in the form of DNA |
|
|
Term
What type of lifeform consists of prokaryotic cells |
|
Definition
|
|
Term
|
Definition
Organisms whose cells contain a nucleus |
|
|
Term
|
Definition
Unicellular organism that lacks a nucleus |
|
|
Term
|
Definition
The property of certain dyes to give off a specific light when exposed to a specific wavelength of light |
|
|
Term
What is the objective lens |
|
Definition
The lens that is located just above the specimen to be viewed |
|
|
Term
Which microscope uses beams of electrons passing through a thin sample |
|
Definition
|
|
Term
which microscope uses a beam of electrons to make an iomage of the specifmen's surface |
|
Definition
|
|
Term
|
Definition
fluid portion of the cell outside the nucleus |
|
|
Term
|
Definition
specialized structure that performs important cellular functions within a eukaryotic cell |
|
|
Term
|
Definition
cell organelle that stores materials such as water, salts, proteins, andcarbohydrates |
|
|
Term
|
Definition
Cell organelle that uses enzymes to break down un-needed organelles, lipids, carbohydrates, and proteins into small molecules that can used by the rest of the cell |
|
|
Term
|
Definition
network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement via cell flagella and cilia |
|
|
Term
|
Definition
threadlike structures made u p of a ptrotein called actin that forms extensive networks and produces a tough flexible framework that supports the cell and help it to move. They assemble or disassemble to extend or contract. |
|
|
Term
|
Definition
Hollow structures made up of proteins known as tubulins and is important in maintaining cell shape and form the mitotic spindle which helps to separate chromosomes |
|
|
Term
|
Definition
Every animal cell contains two of these microtubules. When the cell is dividing the centriole move to opposite ends of the cell and use mitotic spindles of threads to pull one of each of the pairs of chromosomes towards its end. |
|
|
Term
|
Definition
the protein builders or the protein synthesizers of the cell. They are like construction guys who connect one amino acid at a time and build long chains |
|
|
Term
|
Definition
internal membrane system found in eukaryotic cells; place where lipid components of the cell membrane are assembled |
|
|
Term
|
Definition
a stack of flattened membranes this organelle modifies, sorts, and packages proteins and other materials from the endoplasmic reticulum for storage in the cell or release outside the cell |
|
|
Term
|
Definition
The digestive system of plant cells. This organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy |
|
|
Term
|
Definition
The digestive system of animal cells. This organelle takes in nutrients, breaks them down, and creates energy for the cell. The process of creating cell energy is known as cellular respiration. Cells that need more energy such as muscle cells will have more of these organelles than nerve cells which only transmit information. |
|
|
Term
|
Definition
strong, supporting layer around the cell membrane in some cells |
|
|
Term
|
Definition
flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings |
|
|
Term
|
Definition
propertyof biological membranes that allows some substances to pass across it while others cannot, also called semipermeable membrane |
|
|
Term
How is protein created inside cells |
|
Definition
Ribosomes assemble the protine using instructions from DNA Proteins are extruded to surface of Endoplasmic reticulum where they are further modified by ribosomes on the ER Newly assembled proteins are carried from the rough endoplasmic reticulum to the Golgi apparatus in vesicles |
|
|
Term
Name 4 organelles that store, clean-up, and provide structural support |
|
Definition
Vacuoles, lysosomes, cytoskeleton, and centrioles |
|
|
Term
Name 3 organelles that are involved in building proteins |
|
Definition
ribosomes, endopolasmic reticulum, and Golgi apparatus |
|
|
Term
|
Definition
the organization of the phospholipids and proteins in a cell membrane |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
Process by which particles move from an area of high concentration to an area of lower concentration |
|
|
Term
|
Definition
process by which molecules that cannot directly diffuse across the membrane pass through special protein channels |
|
|
Term
|
Definition
the facilitated diffusion of water through a selectively permeable membrane |
|
|
Term
|
Definition
Water channel proteins that allow water to pass through cell membranes |
|
|
Term
|
Definition
State where two adjacent solutions have the same concentration of solute (what is dissolved in them) |
|
|
Term
|
Definition
When two adjacent solutions do not have the same concentration of solute the solution that has a higher concentration of solute (what is dissolved in them) |
|
|
Term
|
Definition
When two adjacent solutions do not have the same concentration of solute the solution that has a lower concentration of solute (what is dissolved in them) |
|
|
Term
|
Definition
the force caused by the net movement of water by osmosis |
|
|
Term
If a cell is in an isotonic solution then it will lose, gain, or retain the same amount of water in itself |
|
Definition
|
|
Term
If a cell is in an hypertonic solution then it will lose, gain, or retain the same amount of water in itself |
|
Definition
|
|
Term
If a cell is in an hypotonic solution then it will lose, gain, or retain the same amount of water in itself |
|
Definition
|
|
Term
|
Definition
The taking of materials into a cell by means of infoldings of the cell membrane |
|
|
Term
|
Definition
a type of endocytosis where an extension of cytoplasm surrounds a particle and packages it within a food vacuole |
|
|
Term
|
Definition
The release of large amounts of material from a cell |
|
|
Term
|
Definition
a group of similar cells that perform a particular function |
|
|
Term
|
Definition
a group of tissues working together to perform an essential task |
|
|
Term
|
Definition
a group of organs that work together to perform a specific taks |
|
|
Term
[image]
What is number 17 |
|
Definition
|
|
Term
|
Definition
[image]
Number 1 Mitochondria |
|
|
Term
[image]
[image]
What is Number 2 |
|
Definition
[image]
What is Number
2 Rough Endoplasmic Reticulum |
|
|
Term
|
Definition
[image]
What is Number
3 Nucleus |
|
|
Term
|
Definition
[image]
What is Number
4 Plasma Membrane |
|
|
Term
|
Definition
[image]
What is Number
5 Nucleolus |
|
|
Term
|
Definition
[image]
What is Number 6 Nuclear Envelope |
|
|
Term
|
Definition
[image]
What is Number
7 Chromatin |
|
|
Term
|
Definition
[image]
What is Number
8 Rough Endoplasmic Reticulum |
|
|
Term
|
Definition
[image]
What is Number
9 Ribosomes |
|
|
Term
[image]
What is Number
10 |
|
Definition
[image]
What is Number
10 Smooth Endoplasmic Reticulum |
|
|
Term
[image]
What is Number
11 |
|
Definition
[image]
What is Number
11 Cillia |
|
|
Term
[image]
What is Number
12 |
|
Definition
[image]
What is Number
12 Golgi Apparatus |
|
|
Term
[image]
What is the brown string next to Number 13
|
|
Definition
[image]
What is Number
13 Microtubules |
|
|
Term
[image]
What is Number
14 |
|
Definition
[image]
What is Number
14 Centrioles |
|
|
Term
[image]
What is Number
15 |
|
Definition
[image]
What is Number
15 Peroxisome |
|
|
Term
[image]
What is Number
16 |
|
Definition
[image]
What is Number
16 Lysosome |
|
|
Term
[image]
What is Number
17 |
|
Definition
[image]
What is Number
17 Microfilaments |
|
|
Term
[image]
What are the holes in the Nucleus called? |
|
Definition
[image]
The holes in the nucleus are called Nuclear pores and allow messenger DNA to leave the Nucleolus |
|
|
Term
How does the body maintain homeostasis and eliminate sudden spikes in PH levels |
|
Definition
How does the body maintain homeostasis and eliminate sudden spikes in PH levels.
A change in blood PH is countered by chemical buffers such as bicarbonate and phosphate ions (2.2) |
|
|
Term
|
Definition
What is a base.
What is a base.
A compound with a PH above 7 that produces hydroxide (OH-) ions in solution. Lye (NaOH) which was used to make soap in the old days has a pH value above 10. (2.2) |
|
|
Term
|
Definition
What is an acid.
Any compound that forms H+ ions in solution.
Hydrochloric Acid (stomach acid) HCI is a strong acid with a pH rating below 4. (2.2) |
|
|
Term
What is the solvent in a solution |
|
Definition
What is the solvent in a solution.
The substance in which the solute dissolves (2.2) |
|
|
Term
What is the solute in a solution |
|
Definition
What is the solute in a solution.
The substance that is being dissolved (2.2) |
|
|
Term
Why is water such a good solvent |
|
Definition
Why is water such a good solvent.
Water is a good solvent It is able to form bonds with positive and negative ions for other atoms which allows it to evenly distribute the solute throughout the water (solvent)
When an ionic or polar compound enters water, it is surrounded by water molecules. The relatively small size of water molecules typically allows many water molecules to surround one molecule of solute. (2.2) |
|
|
Term
|
Definition
What is a suspension.
A suspension is a mixture of water and nondissolved materials in which fine particles are suspended in a fluid where they are supported by buoyancy.
Eventually the particles will settle out and fall to the bottom.
Milk, blood, and paint are examples. (2.2) |
|
|
Term
|
Definition
What is a compound.
A chemical compound is a substance formed by the chemical combination of two or more elements in a definite proportion.
They are identified by their chemical formula. H2O (water) is two hydrogen elements and one oxygen element.
Compounds are often very different than the elements of which they are made (2.1) |
|
|
Term
Compare the structure of carbon 12 and carbon 14 |
|
Definition
Compare the structure of carbon 12 and carbon 14.
Carbon 12 and carbon 14 have six protons and six electrons. However, carbon 12 has six neutrons, whereas carbon 14 has eight neutrons. (2.1) |
|
|
Term
Changing the number of neutrons of an atom changes it into an ____________ |
|
Definition
Changing the number of neutrons of an atom changes it into an ____________.
Isotope (2.1) |
|
|
Term
What are some uses of radioactive isotopes |
|
Definition
What are some uses of radioactive isotopes.
Determine the ages of rocks and fossils, radiation can be used to kill cancer cells, kill bacteria, used as tracers when attached to other medicines when injected into the body. (2.1) |
|
|
Term
What are two main types of bonds that hold the atoms within a compound together |
|
Definition
What are two main types of bonds that hold the atoms within a compound together.
Ionic bonds & covalent bonds (2.1) |
|
|
Term
Water (H2O) and hydrogen peroxide (H2O2) both consists of hydrogen and oxygen atoms. Explain why they have different chemical and physical properties. |
|
Definition
Water (H2O) and hydrogen peroxide (H2O2) both consists of hydrogen and oxygen atoms. Explain why they have different chemical and physical properties..
The two compounds have different properties because they contain hydrogen and oxygen in different proportions (2.1) |
|
|
Term
Why do all isotopes of an element have the same chemical properties |
|
Definition
Why do all isotopes of an element have the same chemical properties.
All isotopes of an element have the same number of protons and electrons but have different number of neutrons. (2.1) |
|
|
Term
|
Definition
What are isotopes.
All isotopes of an element have the same number of protons and electrons but have different number of neutrons. (2.1) |
|
|
Term
If an atom of calcium contains 20 protons. How many electrons does it have |
|
Definition
If an atom of calcium contains 20 protons. How many electrons does it have.
20 Electrons. (2.1) |
|
|
Term
|
Definition
What are neutrons.
Component of an atom consisting of 2 down Quark & 1 Up Quarks with a net charge of zero
2 x down quark (-1/3 + -1/3 charge) 1 x up quarks (2/3 charge) (-1/3) + (-1/3) + (2/3) = zero charge
Since up down quarks are more massive than up quarks the neutron is slightly more massive than protons.
The number of neutrons in a nucleus determines the isotope of an element. Neutrons are only stable when bound in a nucleus with protons. Free neutrons are unstable and are produced in nuclear fission and nuclear fusion. (2.1) |
|
|
Term
|
Definition
What are protons.
What are protons.
Component of an atom consisting of 1 down Quark & 2 Up Quarks with a net charge of +1
1 x down quark (-1/3 charge) 2 x up quarks (2/3 charge + 2/3 charge) (-1/3) + (2/3) + (2/3) = +1 charge
A single proton by itself is called an Hydrogen Ion H+.
The number of protons in a nucleus determines the atomic number of an element. (2.1) |
|
|
Term
|
Definition
What are electrons.
An elementary particle (Lepton) with a charge of -1
The electron is a negatively charged elementary particle that surrounds the nucleus of an atom.
Because of its negative electrical charge, the electron is attracted to the positively charged protons within the atom's nucleus, keeping them bound to the nucleus.
The electron's negative charge also keeps atoms from passing through one another—the repulsion caused by the like charges keeps the atoms apart. (2.1) |
|
|
Term
List the three subatomic particles in an atom and describe how they affect the properties of an element |
|
Definition
List the three subatomic particles in an atom and describe how they affect the properties of an element.
Protons : Determine the type of element
Electrons : Determine the reactivity of the element
Neutrons : Determine the radioactivity of the element (2.1) |
|
|
Term
Describe the structure of an atom. |
|
Definition
Describe the structure of an atom..
An atom is an extremely small unit of matter with a nucleus in the center. The nucleus is formed of subatomic particles called protons, which are positively charged, and neutrons, whch have no charge. Smaller subatomic particles called electrons, which are negatively charged, are in constant motion in the space surrounding the nucleus. (2.1) |
|
|
Term
|
Definition
What is an element.
A chemical element is a pure substance that consists entirely of one type of atom. More than 100 elements are known. About two dozen are commonly found in living organisms. (2.1) |
|
|
Term
|
Definition
What is a solution.
A solution is a mixture in which one substance is dissolved in another.
The molecules of the solute (what is being dissolved) are evenly distributed throughout the solvent (what is being mixed into) in a process called dissolution.
The solute will not separate from the solvent once they have mixed unless they are acted upon by another force.
sugar (solute) in water (solvent) is an example. They do not form a new kind of molecule but exist homogenously throughout the solution. (2.2) |
|
|
Term
What is a chemical mixture |
|
Definition
What is a chemical mixture.
A material composed of two or more elements or compounds that are physically mixed together but not chemically combined (2.2) |
|
|
Term
|
Definition
What is a protein.
What is a protein.
macromolecules mde up of carbon, hydrogen, oxygen, and Nitrogen.
These polymers are assembled from individual monmers called amino acids.
Primary Structure: DNA controls the order of the amino acids in a protein chain.
Secondary Structure: the protein chain bends and folds based on positive and negative charges
Proteins control the rate of reactions and regulate cell processes (2.3) |
|
|
Term
|
Definition
What are nucleic acids.
What are nucleic acids.
macromolecules containing hydrogen, oxygen, nigrogen, carbon, and phosphorus.
These polymers are assembled from individual monmers known as nucleotides
( 5 carbon sugar, a phosphate group and a nitrogenous base).
Nucleic acids are involved with the storage and transmission of hereditary information. (2.3) |
|
|
Term
|
Definition
What are lipids.
molecules made up of carbon and hydrogen that are bonded to a glycerol molecule that are used in the cell walls.
Lipids store energy in fats, oils, and waxes (2.3) |
|
|
Term
|
Definition
What are amino acids.
compounds with an amino group on one end and a carboxyl group on the other that are used to create proteins. (2.3) |
|
|
Term
|
Definition
What are carbohydrates.
compounds made up of carbon, hydrogen, and oxygen atoms in the ratio 1:2:1
Living things use carbohydrates as their main source of energy. (2.3) |
|
|
Term
Why are proteins considered polymers but lipids are not |
|
Definition
Why are proteins considered polymers but lipids are not.
Proteins are considered polymers because they are made of chains of amino acids. Lipids arenot considered polymers because they are not made of chains of smaller units; they are made of a glycerol molecule combined with fatty acids. (2.3) |
|
|
Term
Name four groups of organic compounds (macromolecules) found in living things |
|
Definition
Name four groups of organic compounds (macromolecules) found in living things.
Carbohydrates, lipids, nucleic acids, proteins (2.3) |
|
|
Term
What properties of carbon explain carbon's ability to form different large and complex structures |
|
Definition
What properties of carbon explain carbon's ability to form different large and complex structures.
Carbon atoms can bond to the atoms of many other elements.
Carbon atoms can also readily bond to one another to form chains and rings.
It can form single, double, or triple covalent bonds. (2.3) |
|
|
Term
What are the major elements of life |
|
Definition
What are the major elements of life.
Carbon, hydrogen, oxygen, phosphorus, sulfur, and nitrogen (2.3) |
|
|
Term
|
Definition
What is surface tension.
A water molecule can form up to 4 hydrogen bonds with other water molecules. On the surface of the water they have no water bonds above them and therefore form tighter bonds with the molecules beside them which forms a film on the surface (2.2) |
|
|
Term
|
Definition
What is adhesion.
When the attractive forces are between unlike molecules, they are said to be adhesive forces.
The adhesive forces between water molecules and the walls of a glass tube are stronger than the cohesive forces lead to an upward turning meniscus at the walls of the vessel and contribute to capillary action. (2.2) |
|
|
Term
|
Definition
What is cohesion.
the attraction between molecules of the same substance.
It is the cause of drops of water forming beads on a smooth surface instead of spreading out evenly. (2.2) |
|
|
Term
What are four of the properties of water that are due to the hydrogen bonds that it forms |
|
Definition
What are four of the properties of water that are due to the hydrogen bonds that it forms.
Cohesion - attraction between molecules of the same substance
Adhesion - attraction between molecules of substances which are different
Heat Capacity - water can absorb a lot of energy without the temperature rising
High Boiling Point - Water remains in the liquid state up to 212 degrees fahrenheit (100 deg. celcius) instead of boiling away as a gas
Less dense as a solid than as a liquid so that ice floats
Surface tension - the hydrogen bonds form a surface on the water that can support light creatures (2.2) |
|
|
Term
If a solution has a PH of 4 it is said to be ____________ |
|
Definition
If a solution has a PH of 4 it is said to be ____________.
An acid is any solution with a PH below 7 and it has more hydrogen ions H+ (2.2) |
|
|
Term
If a solution has a PH of 12 it is said to be __________ |
|
Definition
If a solution has a PH of 12 it is said to be __________.
A base is any solution with a PH above 7 and it has more hydroxide OH- ions (2.2) |
|
|
Term
A potassium atom easily loses its one valence electron. What is the characteristic of the element that determines how hard it holds onto its electrons |
|
Definition
A potassium atom easily loses its one valence electron. What is the characteristic of the element that determines how hard it holds onto its electrons.
Electronegativity determines how hard an atom holds onto its valence electrons. Elements with high electronegativity will hold onto their electrons tighter and be more likely to steal electrons from other elements. (2.1) |
|
|
Term
A potassium atom easily loses its one valence electron. What type of bond will it form with a chlorine atom |
|
Definition
A potassium atom easily loses its one valence electron. What type of bond will it form with a chlorine atom.
Ionic (2.1) |
|
|
Term
|
Definition
What is a Covalent Bond.
bond that is formed when two elements are bonded together because they share an electron.
When two or more elements are bonded together with a covalent bond they are called a molecule. (2.1) |
|
|
Term
|
Definition
What is an ionic bond.
bond that is formed when two elements are bonded together because one element gives up an electron to another element.
That causes one element to be positive (because it is now not balanced because it is missing an electron) and the other is negative (because it now has an extra electron) and then each element is attracted to the other and they stick together. (2.1) |
|
|
Term
Why does the structure of a water molecule cause it to be polar |
|
Definition
Why does the structure of a water molecule cause it to be polar.
The electronegativity of the oxygen atom is stronger than the electronegativity of the hydrogen atom. Therefore, the oxygen end of the molecule contains the shared electron more often than the hydrogen end of the molecule (2.2) |
|
|
Term
Why do hydrogen bonds form between water molecules |
|
Definition
Why do hydrogen bonds form between water molecules.
A hydrogen bond occurs when the slight positive charge on a hydrogen atom in one water molecule is attracted to the slight negative charge on the oxygen atom in another water molecule (2.2) |
|
|
Term
What does it mena when a molecule is said to be "polar" |
|
Definition
What does it mena when a molecule is said to be "polar".
A molecule is polar when there is an uneven distribution of electrons between its atoms. This causes the molecule to have an area with a slight negative charge and an area with a slight positive charge. (2.2) |
|
|
Term
What three factors influence the electronegativity of an element |
|
Definition
What three factors influence the electronegativity of an element.
The distance of the valence electrons from the nucleus, the number of protons in the nucleus, and the number of "s" shells in the atom which shield the valence electrons from the influence of the protons in the nucleus. (2.1) |
|
|
Term
What is a chemical reactant |
|
Definition
What is a chemical reactant.
The elements or compounds that enter into a chemical reaction to produce a new thing which is called the product. (2.4) |
|
|
Term
|
Definition
How do enzymes work.
Enzymes provide a site where reactants, called substrates, can be brought together to react
The substrates bind to a site on the enzyme called the active site, forming an enzyme-substrate complex.
This reduces the activiation energy needed for the reaction. (2.4) |
|
|
Term
|
Definition
What is a an enzyme.
Enzymes are proteins in the body that act as catalysts. They speed up chemical reactions that take place in cells.
Without the enzyme carbonic anhydrase your body would not be able to convert carbon dioxide from your cells into carbonic acid (which can be transported by red blood cells) fast enough to keep you from dying from an overdose of carbon dioxide. After the red blood cell reaches the lungs, it turns the carbonic acid back into carbon dioxide so it can leave the body through the lungs and in the process it creates more of the enzyme needed to repeat the process. (2.4) |
|
|
Term
|
Definition
What is a catalyst.
a substance that speeds up the rate of a chemical reaction or lowers the amount of activation energy needed to start the chemical reaction.
Enzymes are proteins in the body that act as catalysts. They speed up chemical reactions that take place in cells. (2.4) |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
What is Number 10
[image] |
|
Definition
|
|
Term
What is Number 11
[image] |
|
Definition
|
|
Term
What is Number 12
[image] |
|
Definition
|
|
Term
What is Number 13
[image] |
|
Definition
|
|
Term
What is Number 14
[image] |
|
Definition
|
|
Term
What is Number 15
[image] |
|
Definition
|
|
Term
What is Number 16
[image] |
|
Definition
|
|
Term
What is Number 17
[image] |
|
Definition
|
|
Term
What is Number 18
[image] |
|
Definition
|
|
Term
What is Number 19
[image] |
|
Definition
|
|
Term
[image]
Brain
There are 5 primary divisions of the brain? What is the most anterior section of the brain? |
|
Definition
[image]
#1 : The telencephalon (also known as the cerebrum) is part of the forebrain. It is the most anterior section of the brain and in humans it is also the most superior section.
The cerebrum is composed of the following sub-regions:
- Cerebral cortex, or cortices of the cerebral hemispheres
- Basal ganglia, or basal nuclei
- Limbic System
This section is the newest evolutionary brain development.
Controls:
Voluntary Movement
Sensory Processing
Olfaction (in humans)
Language and Communication
Learning and Memory
|
|
|
Term
[image]
Brain
There are 5 primary divisions of the brain? What is the most posterior division of the brain? |
|
Definition
[image]
#5 : The most posterior division of the brain before it becomes the spinal cord is the Myelencephalon.
- It part of the hindbrain.
- Commonly known as the Medulla Oblongata.
- This is where the nerves decussate or swap sides so that the right side of the brain controls the left side of the body and vice versa.
- Controls muscle tone, pulse, blood pressure, respiration.
- Autonomic Functions
- Breathing
- Conduction Pathway for Nerve Tracts
- Digestion
- Heart Rate
- Swallowing
- Sneezing
( http://biology.about.com/library/organs/brain/blmyelenceph.htm ) |
|
|
Term
[image]
Brain
There are 5 primary divisions of the brain? What is the division that contains the cerebellum? |
|
Definition
[image]
#4 : Metencephalon
Contains: Cerebellum & Pons
Controls:
- Breathing
- Coordinate muscle movements
- Maintains posture
- integrates sensory information from the inner ear and proprioceptors in the muscles and joints
- Sleep & Arousal
|
|
|
Term
[image]
Brain
There are 5 primary divisions of the brain? Which division is known as the Mid-brain? |
|
Definition
[image]
#3 : Mesencephalon
The Mesencephalon (mid-brain) is located between the forebrain and the hindbrain.
Contains:
Tectum (roof)
Tegmentum
Function:
- Controlling Responses to Sight
- Eye Movement
- Pupil Dilation
- Body Movement
- Hearing
( http://biology.about.com/library/organs/brain/bldienceph.htm )
|
|
|
Term
[image]
Brain
There are 5 primary divisions of the brain? What is the most posterior division of the brain? |
|
Definition
[image]
#2 : Diencephalon
Contains the Thalamus & the Hypothalamus
It is part of the forebrain.
Function:
- Chewing
- Directs Sense Impulses Throughout the Body
- Equilibrium
- Eye Movement, Vision
- Facial Sensation
- Hearing
- Phonation
- Respiration
- Salivation, Swallowing
- Smell, Taste
( http://biology.about.com/library/organs/brain/bldienceph.htm ) |
|
|