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Biology Midterm
N/A
30
Biology
9th Grade
01/23/2010

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Cards

Term
What is common with every single living thing?
Definition
a) Have a Universal Genetic Code
b) Grow and Develop
c) Respond to their environment
d) Reproduce
e) Maintain Homeostasis
f) Obtain and use material and energy
g) Evolve
h) Are made up of cells
Term
What is the level or organization after organism?
Definition
species, popilation, community, ecosystem, biome, biosphere
Term
What is a species?
Definition
A group of similar organisms that can breed and produce fertile offspring
Term
What is a population?
Definition
A group of individuals of same species that live in the same area
Term
What is a community?
Definition
An assemblage of different populations that live together in a defined area
Term
What is an ecosystem?
Definition
All the organisms that live in a place, together with their physical environment
Term
What is a biome?
Definition
A group of ecosystems that share similar climates and typical organisms
Term
What is the biosphere?
Definition
Our entire plane with all organisms and physical environment.
Term
What are the themes of biology?
Definition
Cellular basis of life, Information and Heriditary, Matter and Energy, Growth Development Reproduction, Homeostasis, Evolution, Structure and Funtion, Unity and Diversity of Life, Interdependence in Nature, Science as a Way of Knowing
Term
Atomic Number
Definition
Number of Protons
Term
Atomic Mass
Definition
Number of Protons plus Neutrons
Term
# of Protons
Definition
# of Electrons
Term
What is the formula for the maximum number of electrons on each energy level?
Definition
2(n squared)
Term
How to recognize a carbohydrate?
Definition
Hydrogen:Oxygen = 2:1
Term
What is the difference between organic and inorganic compounds?
Definition
All organic compounds contain carvon and inorganic compounds don't.
Term
How to recognize a lipid?
Definition
Hydrogen:oxygen= greater than 2:1
Term
How to recognize amino acid?
Definition
They have an amino group (-NH2) or organic acid group (-COOH
Term
Four Kinds of Macromolecules
Definition
Carbohydrates, Lipids, Proteins, Nucleic Acid
Term
What are the parts of a triglyceride?
Definition
1 Glycerol and 3 Fatty Acids
Term
What is a solution?
Definition
A mixture in which one or more substances are uniformly distributed in another substance.
Term
What is solute?
Definition
The substance dissolved in the solution.
Term
What is a solvent?
Definition
The substance in which the solute is dissolved.
Term
What is the concentration of a solution?
Definition
Measurement of the amount of solute dissolved in a fixed amount of solution
Term
What is a saturated solution?
Definition
It is a solution in which no more solute can be dissolved.
Term
Aqueous Solution
Definition
A solution in which water is the solvent
Term
Hydroxide ion
Definition
OH-
Term
Hydronium Ion
Definition
H3O+
Term
How do we know if a solution is an acid?
Definition
It has more hydronium ions than hydroxide ions
Term
What is a base?
Definition
A solution which contains more hydroxide ions than hydronium ions.
Term
What are buffers?
Definition
Chemical Substances that neutralize a small amount of an acid or a base when added to a solution
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