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Bio 181
all the questions from the past quizzes
118
Biology
Undergraduate 1
12/10/2017

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Term
DOGSREACH
Definition
DNA
ORGANIZED COMPLEXITY
GROWTH
STIMULUS RESPONSE
REPRODUCTION
ENERGY
ADAPT
CELLS
HOMEOSTASIS
Term
Are bacterial cells prokaryotic or eukaryotic
Definition
prokaryotic
Term
Which part of the cell does the Fluid Mosaic Model apply to?
Definition
Cell plasma membrane
Term
A membrane bound nucleus would be found in a prokaryotic or eukaryotic cell?
Definition
Eukaryotic
Term
Name the primary function of the Golgi Apparatus
Definition
To package proteins and lipids into the vesicles for either immediate use by the cell or storage
Term
Functions of Cilia
Definition
a. Cellular locomotion
b. movement of particles along a surface
c. filtration
Term
Name the simple sugar that is the monomer of carbohydrates and give an example
Definition
Polysaccarides
ex. chitin, cellulose, glucose
Term
Which process is the opposite of condensation in chemical reactions
Definition
Hydrolysis
Term
DNA, RNA, and ATP are all examples of which biological macromolecule?
Definition
Nucleic acids
Term
Name the two scientists credited with the discovery of the double helix structure of DNA
Definition
James Watson and Francis Crick
Term
Where does glycolysis happen?
Definition
Cytoplasm
Term
Glycolysis is an anaerobic process. Name the two steps in cellular respiration which are aerobic processes
Definition
Krebs cycle, Electron transport chain
Term
Describe where and what cristae are
Definition
Cristae are foldings inside the inner membrane of a mitochondrion
Term
Name the term used to describe an atom or molecule which loses an electron in a chemical reaction
Definition
Ions form as a result of oxidation (OIL RIG)
Term
The process where an atom or molecule gains an electron in a chemical reaction
Definition
Reduction
Term
How many net ATP are produced in glycolysis?
Definition
2 net ATP and 2 NADH
Term
Which step of cellular respiration results in the greatest amount of ATP production?
Definition
Electron transport chain
Term
Diffusion
Definition
Diffusion is the passive transport mechanism where a substance moves from an area of high concentration to an area of low concentration
Term
Osmosis is the diffusion of water. Is this process active or passive?
Definition
Passive because is requires no chemical energy
Term
Is the phospholipid head hydrophilic or hydrophobic? Polar or non polar?
Definition
Hydrophilic and polar
Term
Is the phospholipid tail hydrophilic or hydrophobic? Polar or non polar?
Definition
Hydrophobic and non polar
Term
Name two characteristics that would prevent a molecule from passing through the plasma membrane
Definition
Large, charged, polar
Term
Give an example of an active transport mechanism
Definition
endocytosis, exocytosis, sodium-potassium pump
Term
Energy of motion
Definition
Kinetic energy
Term
Stored energy
Definition
Potential energy
Term
Energy currency of the cell
Definition
ATP (adenosine triphosphate)
Term
Catalyst
Definition
A catalyst is a substance needed to start or speed up a chemical reaction
Term
Enzyme
Definition
A protein that catalyzes biochemical reactions within the cell and the body
Term
Metabolism
Definition
All of the chemical reactions that occur within the cell including those that release and consume energy
Term
Where are proteins synthesized?
Definition
Ribosomes
Term
The powerhouse of the cell. ATP is made here
Definition
Mitochondria
Term
The command center of the cell
Definition
Nucleus
Term
What are some characteristics of prokaryotic cells? Eukaryotic?
Definition
Small, simple, found in single celled organisms; Large, complex, found in multicellular organisms
Term
The cell's packaging and shipping department
Definition
Golgi apparatus
Term
Name an extra cellular structure
Definition
Cilia
Term
Which is the primary component of the plasma membrane
Definition
Phospholipid
Term
The movement of plasma membrane components like boats on a pond is known as what?
Definition
Fluid Mosaic Model
Term
Why do phospholipids form a bilayer?
Definition
they are polar
Term
Name a metabolic pathway
Definition
Cellular respiration
Term
First law of thermodynamics
Definition
Energy cannot be created nor destroyed
Term
The sodium potassium pump requires what to operate?
Definition
ATP
Term
How would large or charged molecules pass through the plasma membrane?
Definition
Facilitated diffusion
Term
Which process takes place to break a large molecule like ATP into a smaller molecule like ADP?
Definition
Hydrolysis (lysis is slices)
Term
A reaction that gives off heat
Definition
exergonic
Term
Name the enzyme required to break down the sugar in milk
Definition
Lactase
Term
An enzyme which as been heated to the point that its three dimensional structure is permanently altered is
Definition
denatured
Term
What type of bond is created when atoms exchange electrons?
Definition
Ionic
Term
Name a compound held together by an Ionic bond
Definition
NaCl (sodium chloride)
Term
Bond that holds together water molecules
Definition
Hydrogen bond
Term
Monomer of lipids
Definition
fatty acids
Term
Monomers of proteins
Definition
amino acids
Term
Monomers of carbohydrates
Definition
monosaccarides
Term
Monomers of nucleic acids
Definition
nucleotides
Term
What is starch
Definition
A carbohydrate and polysaccharide that is broken down by the enzyme almalase
Term
Name 4 unique physical properties of water
Definition
Surface tension, cohesion, adhesion, high temperature of vaporization
Term
Explain how waters physical properties help us maintain homeostasis
Definition
Waters high specific heat allows the body to remain at a relatively stable temperature despite changing environmental conditions .
Term
Name nucleotide bases that are pyrimidines
Definition
CUT the PY: cytosine, uracil, thymine
Term
Name the base pairs
Definition
adenine and thymine/uracil, guanine and cytosine
Term
Name three components of a nucleotide
Definition
Phosphate group, deoxyribose, nitrogen bases
Term
Helicase
Definition
Unzips
Term
Dna polymerase
Definition
synthesizes nitrogen bases and proofreads
Term
Ligase
Definition
glues together Okazaki fragments
Term
Primase
Definition
primer
Term
Topoisomerase
Definition
Unwinds
Term
# of rings for pyrimidines and purines (respectively)
Definition
Pyrimidines are single, purines are double
Term
Freidrich Miescher
Definition
Discovered "nuclein" in pus cells
Term
Fredrich Griffith
Definition
Did the experiment with the mice and the phenomena bacteria
Term
Oswald Avery
Definition
Isolated DNA, RNA, and proteins and confirmed that dan transferred genetic material
Term
Hershey and Chase
Definition
Used radioactive dyes to confirm Avery's findings
Term
Erwin Chargaff
Definition
Discovered the nitrogen base pair ratios
Term
Wilkins and Franklin
Definition
took photo 51 through crystallography and confirmed double helix structure
Term
Human genome project
Definition
1990 us project to code entire human genome
Term
Rest period between meiosis 1 and 2
Definition
Interkinesis
Term
Study of cancer
Definition
Oncology
Term
How do multicellular organisms reproduce? Single celled?
Definition
Sexually; asexually
Term
Name the structure formed when homologous pairs of chromosomes along with their duplicates bind together in a group of four chromosomes
Definition
Tetrad
Term
When in meiosis does synapsis and cross over occur
Definition
Prophase 1
Term
cells created by mitosis
Definition
somatic
Term
cells created in meiosis
Definition
sex cells
Term
Phase of mitosis where chromosomes pull apart
Definition
Anaphase
Term
Phase of mitosis where chromosomes meet in the middle
Definition
Metaphase
Term
Organelle where photosynthesis takes place
Definition
Chloroplasts
Term
Pigment that plays major role in photosynthesis
Definition
chlorophyll
Term
Cycle that is apart of the light independent reactions of photosynthesis
Definition
Krebs cycle
Term
Range of wavelengths in the electromagnetic spectrum that contains visible light
Definition
400-700nm
Term
Flattened, stacked, disc shaped structures of the inner membrane of the chloroplast
Definition
Thylakoids
Term
Cell division process of bacteria
Definition
binary fission
Term
The point where sister chromatids join together to form the characteristic X shape
Definition
Centromere
Term
2n number of chromosomes
Definition
Diploid
Term
Protein that the double stranded DNA molecule wraps around to make the DNA more condensed
Definition
Histone
Term
Dna after it wrapped itself around the histones
Definition
Chromatin
Term
Stage where cell is in arrest
Definition
G0
Term
DNA replication stage
Definition
S phase
Term
How many stages in interphase
Definition
3
Term
How long for one full cell cycle
Definition
24 hours
Term
Phase of mitosis where nuclear envelope disappears and chromatin condenses
Definition
Prophase
Term
Programmed cell death
Definition
Apoptosis
Term
An accumulation of chemicals which stimulate the cell to progress towards division is known as
Definition
Positive regulation
Term
Chemicals that regulate the process of the cell cycle at various checkpoints
Definition
Cyclins and CDKs
Term
Where the cell membrane pinches together during cell division
Definition
Cleavage furrow
Term
Phase of mitosis where the nuclear envelope reappears and the chromosomes relax and uncoil
Definition
Telophase
Term
Uncontrolled cell division
Definition
Cancer
Term
Ultimate source of energy for human life
Definition
The sun
Term
Breaking down glucose in the presence of oxygen
Definition
aerobic
Term
Organisms that depend on the energy stored in chemical bonds of other organisms are called
Definition
heterotrophs
Term
Can manufacture their own energy
Definition
autotrophs
Term
Standing at the top of the stairs you have potential energy of 70 joules. If you walk down to the bottom of the stairs what is your potential energy
Definition
0 joules
Term
In an enzyme catalyzed reaction the substance that bonds to the enzyme Is called what
Definition
substrate
Term
2nd law of thermodynamics
Definition
increases in entropy are favored
Term
3 carbon compound product of glycolysis
Definition
pyruvate
Term
The Krebs cycle and electron transport chain occur here in eukaryotic cells
Definition
mitochondria
Term
Total net ATP from one molecule of glucose in aerobic respiration
Definition
Term
Where do the carbon atoms in glucose come from?
Definition
Carbon dioxide
Term
Glucose molecules are made in the Calvin cycle. What part of the chloroplast does this reaction happen in?
Definition
Stroma
Term
What has higher frequency than violet colored light?
Definition
Ultra violet, X ray, gamma ray
Term
What wavelength is the longest
Definition
Radio waves
Term
The splitting of water and generation of oxygen occur in the light dependent reactions. What part of the chloroplast do these reactions happen in?
Definition
Thylakoid membrane
Term
electromagnetic waves that are harmful
Definition
x rays, gamma rays
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