Biology 133 Exam 2: Chapters 7-11
(Grade: 87%)
Question 1
The reduction of NADP+ → NADPH occurs because there are
electrons from water and energy from ATP
Question 2
Normal watermelons (n=11) are diploid.
How many chromosomes are in a sperm cell? 11
How many chromosomes are in a normal watermelon somatic cell? 22
Question 3
Teeth can have a biofilm formed on the surface. Cell signaling will
increase cell quantity
Question 4
C6H12O6 + 6O2 → 6H2O + 6CO2 is an example of ____________. (This question refers to what is
occurring on the right side of the reaction.)
oxidation
Question 5
Molecules generated from butter will enter aerobic cellular respiration at
pyruvate oxidation
Question 6
Removal of NH3 is best described as ____________ .
deamination
Question 7
To efficiently provide the ideal amount of nitrogen fertilizer, some farmers make use of a "chlorophyll
meter" that measures the amount of green light reflected off a leaf.Why does this provide an indication
of whether the plant may need more or less nitrogen?
Nitrogen gas is green, and photosynthesis uses N2 to run the Calvin cycle.
Question 8
What vitamin acts as a coenzyme in cell respiration and is important in alcohol fermentation?
thiamine
, Question 9
What area is not involved with pumping protons to the intermembrane space?
complex II
Question 10
Almost all life cycles will have haploid and diploid phases. The transition from haploid to diploid occurs
when gametes fuse during fertilization
Question 11
Protein phosphorylating enzymes help regulated gene expression by
protein activation
Question 12
Cancer is caused by unregulated cell growth. One way to attack cancer cells is to harness the power of
signaling pathways. For each type of drug, match it to the component of the pathway it would bind to.
cell surface receptor
G protein
kinase
transcription factor
ribosome
A drug that interferes with transcription of certain genes TRANSCRIPTION FACTOR
A drug that blocks translation completely RIBOSOME
A drug that mimics an extracellular growth signal CELL SURFACE RECEPTOR
A drug that blocks GTPase activity G PROTEIN
A specific kinase inhibitor KINASE
Question 13
If calcium levels are low, cAMP activity increases which leads to synthesis and release of parathyroid
hormone. cAMP acts as a(n)
ligand
Question 14
In vertebrate immune systems, some t-lymphocytes will make a growth factor that drives their own
division. This represents
autocrine signaling
Question 15
In gluconeogenesis, organisms use ATP to make glucose, then in cellular respiration they break down the
glucose again to get energy. Why not just store the ATP? (Select all that apply.)
(Grade: 87%)
Question 1
The reduction of NADP+ → NADPH occurs because there are
electrons from water and energy from ATP
Question 2
Normal watermelons (n=11) are diploid.
How many chromosomes are in a sperm cell? 11
How many chromosomes are in a normal watermelon somatic cell? 22
Question 3
Teeth can have a biofilm formed on the surface. Cell signaling will
increase cell quantity
Question 4
C6H12O6 + 6O2 → 6H2O + 6CO2 is an example of ____________. (This question refers to what is
occurring on the right side of the reaction.)
oxidation
Question 5
Molecules generated from butter will enter aerobic cellular respiration at
pyruvate oxidation
Question 6
Removal of NH3 is best described as ____________ .
deamination
Question 7
To efficiently provide the ideal amount of nitrogen fertilizer, some farmers make use of a "chlorophyll
meter" that measures the amount of green light reflected off a leaf.Why does this provide an indication
of whether the plant may need more or less nitrogen?
Nitrogen gas is green, and photosynthesis uses N2 to run the Calvin cycle.
Question 8
What vitamin acts as a coenzyme in cell respiration and is important in alcohol fermentation?
thiamine
, Question 9
What area is not involved with pumping protons to the intermembrane space?
complex II
Question 10
Almost all life cycles will have haploid and diploid phases. The transition from haploid to diploid occurs
when gametes fuse during fertilization
Question 11
Protein phosphorylating enzymes help regulated gene expression by
protein activation
Question 12
Cancer is caused by unregulated cell growth. One way to attack cancer cells is to harness the power of
signaling pathways. For each type of drug, match it to the component of the pathway it would bind to.
cell surface receptor
G protein
kinase
transcription factor
ribosome
A drug that interferes with transcription of certain genes TRANSCRIPTION FACTOR
A drug that blocks translation completely RIBOSOME
A drug that mimics an extracellular growth signal CELL SURFACE RECEPTOR
A drug that blocks GTPase activity G PROTEIN
A specific kinase inhibitor KINASE
Question 13
If calcium levels are low, cAMP activity increases which leads to synthesis and release of parathyroid
hormone. cAMP acts as a(n)
ligand
Question 14
In vertebrate immune systems, some t-lymphocytes will make a growth factor that drives their own
division. This represents
autocrine signaling
Question 15
In gluconeogenesis, organisms use ATP to make glucose, then in cellular respiration they break down the
glucose again to get energy. Why not just store the ATP? (Select all that apply.)
