BIOS 150 General Biology with Lab Exam
final (Latest Update ) Anatomy
and Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which structure is responsible for controlling the movement of
substances into and out of the cell?
A. Nucleus
B. Cell membrane
C. Cytoplasm
D. Ribosome
Correct Answer: B. Cell membrane
Rationale: The cell membrane is selectively permeable and
regulates transport.
2. Which macromolecule is directly responsible for catalyzing
biochemical reactions?
A. Lipids
B. Carbohydrates
,C. Proteins
D. Nucleic acids
Correct Answer: C. Proteins
Rationale: Enzymes are proteins that speed up chemical reactions.
3. What would happen to an enzyme if the pH becomes too
extreme?
A. It becomes more active
B. It denatures
C. It replicates
D. It stores energy
Correct Answer: B. It denatures
Rationale: Extreme pH alters enzyme structure and function.
4. Which process requires ATP to move substances against a
concentration gradient?
A. Diffusion
B. Osmosis
C. Facilitated diffusion
D. Active transport
Correct Answer: D. Active transport
Rationale: Active transport uses energy to move substances against
gradients.
5. What is the primary purpose of cellular respiration?
,A. Produce glucose
B. Produce ATP
C. Store DNA
D. Build proteins
Correct Answer: B. Produce ATP
Rationale: Cellular respiration converts glucose into usable energy.
6. Where does glycolysis occur?
A. Mitochondria
B. Cytoplasm
C. Nucleus
D. Ribosome
Correct Answer: B. Cytoplasm
Rationale: Glycolysis occurs outside the mitochondria in the
cytoplasm.
7. Which stage of respiration produces the most ATP?
A. Glycolysis
B. Krebs cycle
C. Electron transport chain
D. Fermentation
Correct Answer: C. Electron transport chain
Rationale: Most ATP is generated during this stage.
8. What is the role of oxygen in cellular respiration?
, A. Energy source
B. Final electron acceptor
C. Enzyme
D. Product
Correct Answer: B. Final electron acceptor
Rationale: Oxygen accepts electrons to form water.
9. Which organelle is the site of photosynthesis?
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Golgi
Correct Answer: B. Chloroplast
Rationale: Chloroplasts convert light energy into chemical energy.
10. What are the products of photosynthesis?
A. CO₂ and water
B. Glucose and oxygen
C. ATP only
D. DNA and RNA
Correct Answer: B. Glucose and oxygen
Rationale: Photosynthesis produces glucose and releases oxygen.
11. Which phase of mitosis is characterized by chromosome
alignment at the equator?
final (Latest Update ) Anatomy
and Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which structure is responsible for controlling the movement of
substances into and out of the cell?
A. Nucleus
B. Cell membrane
C. Cytoplasm
D. Ribosome
Correct Answer: B. Cell membrane
Rationale: The cell membrane is selectively permeable and
regulates transport.
2. Which macromolecule is directly responsible for catalyzing
biochemical reactions?
A. Lipids
B. Carbohydrates
,C. Proteins
D. Nucleic acids
Correct Answer: C. Proteins
Rationale: Enzymes are proteins that speed up chemical reactions.
3. What would happen to an enzyme if the pH becomes too
extreme?
A. It becomes more active
B. It denatures
C. It replicates
D. It stores energy
Correct Answer: B. It denatures
Rationale: Extreme pH alters enzyme structure and function.
4. Which process requires ATP to move substances against a
concentration gradient?
A. Diffusion
B. Osmosis
C. Facilitated diffusion
D. Active transport
Correct Answer: D. Active transport
Rationale: Active transport uses energy to move substances against
gradients.
5. What is the primary purpose of cellular respiration?
,A. Produce glucose
B. Produce ATP
C. Store DNA
D. Build proteins
Correct Answer: B. Produce ATP
Rationale: Cellular respiration converts glucose into usable energy.
6. Where does glycolysis occur?
A. Mitochondria
B. Cytoplasm
C. Nucleus
D. Ribosome
Correct Answer: B. Cytoplasm
Rationale: Glycolysis occurs outside the mitochondria in the
cytoplasm.
7. Which stage of respiration produces the most ATP?
A. Glycolysis
B. Krebs cycle
C. Electron transport chain
D. Fermentation
Correct Answer: C. Electron transport chain
Rationale: Most ATP is generated during this stage.
8. What is the role of oxygen in cellular respiration?
, A. Energy source
B. Final electron acceptor
C. Enzyme
D. Product
Correct Answer: B. Final electron acceptor
Rationale: Oxygen accepts electrons to form water.
9. Which organelle is the site of photosynthesis?
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Golgi
Correct Answer: B. Chloroplast
Rationale: Chloroplasts convert light energy into chemical energy.
10. What are the products of photosynthesis?
A. CO₂ and water
B. Glucose and oxygen
C. ATP only
D. DNA and RNA
Correct Answer: B. Glucose and oxygen
Rationale: Photosynthesis produces glucose and releases oxygen.
11. Which phase of mitosis is characterized by chromosome
alignment at the equator?
