BIOL133 Exam 2-Chapters 7-11 Questions and Answers Latest Updated
2026/2027 (Graded A+)- American Public University
Attempt 1
Submission View
Released: Sep 30, 2026 12:05 AM
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Question 1 2..5 points
If calcium levels are low, cAMP activity increases which leads to synthesis and release of parathyroid hormone. cAMP acts as
a(n)
enzyme
phosphorylating agent
ligand
second messenger
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Question 2 2..5 points
Light-dependent reactions build NADPH and oxygen by .
oxidation
reduction
oxidation and reduction
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Question 3 .5 points
Chromosome duplication occurs for the beginning of which process? Select all that apply.
mitosis
meiosis I
meiosis II
interkinesis
cytokinesis
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Question 4 2..5 points
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.)
, ATP does not have high-energy bonds.
ATP is not energy dense enough.
ATP is not stable enough.
ATP without a cofactor forms crystalline structures.
Using glucose directly to power enzymes is more efficient.
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Question 5 2..5 points
What statement shows the relationship among chloroplasts and mitochondria?
both use oxygen as the final electron acceptor
both release carbon dioxide
both reduce NADP+
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Question 6 2..5 points
If a sperm contains 12 chromosomes, it came from an organism that had
36 chromosomes
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Question 7 2..5 points
The majority of the energy remains in what glycolytic final product?
ATP
glyceraldhyde 3-phosphate
phosphoenolpyruvate
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Question 8 2..5 points
Which event may lead to cancer? Select all that apply.
2026/2027 (Graded A+)- American Public University
Attempt 1
Submission View
Released: Sep 30, 2026 12:05 AM
Your quiz has been submitted successfully.
Question 1 2..5 points
If calcium levels are low, cAMP activity increases which leads to synthesis and release of parathyroid hormone. cAMP acts as
a(n)
enzyme
phosphorylating agent
ligand
second messenger
View question 1 feedback
Question 2 2..5 points
Light-dependent reactions build NADPH and oxygen by .
oxidation
reduction
oxidation and reduction
View question 2 feedback
Question 3 .5 points
Chromosome duplication occurs for the beginning of which process? Select all that apply.
mitosis
meiosis I
meiosis II
interkinesis
cytokinesis
View question 3 feedback
Question 4 2..5 points
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.)
, ATP does not have high-energy bonds.
ATP is not energy dense enough.
ATP is not stable enough.
ATP without a cofactor forms crystalline structures.
Using glucose directly to power enzymes is more efficient.
View question 4 feedback
Question 5 2..5 points
What statement shows the relationship among chloroplasts and mitochondria?
both use oxygen as the final electron acceptor
both release carbon dioxide
both reduce NADP+
View question 5 feedback
Question 6 2..5 points
If a sperm contains 12 chromosomes, it came from an organism that had
36 chromosomes
View question 6 feedback
Question 7 2..5 points
The majority of the energy remains in what glycolytic final product?
ATP
glyceraldhyde 3-phosphate
phosphoenolpyruvate
View question 7 feedback
Question 8 2..5 points
Which event may lead to cancer? Select all that apply.
