251 Week 2 Quiz Exam 2 (Latest Update
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A - Chamberlain
1. Which organelle is responsible for synthesizing ribosomal
RNA?
A. Nucleus
B. Nucleolus
C. Ribosome
D. Golgi apparatus
Correct Answer: B
Rationale: The nucleolus within the nucleus produces rRNA for
ribosome assembly.
2. Which transport mechanism requires vesicles to move
substances?
A. Diffusion
B. Osmosis
C. Endocytosis
D. Facilitated diffusion
,Correct Answer: C
Rationale: Endocytosis uses vesicles to engulf extracellular
materials.
3. Which macromolecule serves as the main component of cell
membranes?
A. Protein
B. Phospholipid
C. Carbohydrate
D. Nucleic acid
Correct Answer: B
Rationale: Phospholipids form the bilayer structure of membranes.
4. Which organelle is responsible for packaging and shipping
proteins?
A. Ribosome
B. Golgi apparatus
C. Smooth ER
D. Lysosome
Correct Answer: B
Rationale: Golgi apparatus modifies, sorts, and packages proteins
for transport.
5. Facilitated diffusion differs from simple diffusion because it:
,A. Uses ATP
B. Requires transport proteins
C. Moves molecules against the gradient
D. Only moves water
Correct Answer: B
Rationale: Facilitated diffusion uses proteins to assist passive
transport.
6. Which organelle is known as the “powerhouse” of the cell?
A. Ribosome
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct Answer: B
Rationale: Mitochondria produce ATP through cellular respiration.
7. Which phase of the cell cycle involves DNA replication?
A. G1
B. S
C. G2
D. M
Correct Answer: B
Rationale: The S phase is where the cell duplicates its DNA.
, 8. Which organelle detoxifies drugs and synthesizes lipids?
A. Smooth ER
B. Rough ER
C. Lysosome
D. Golgi apparatus
Correct Answer: A
Rationale: Smooth ER is responsible for lipid synthesis and
detoxification.
9. Which macromolecule stores and transmits genetic
information?
A. Protein
B. Lipid
C. Nucleic acid
D. Carbohydrate
Correct Answer: C
Rationale: DNA and RNA carry genetic instructions for cell
function.
10. Which organelle contains digestive enzymes to break down
macromolecules?
A. Ribosome
B. Lysosome
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A - Chamberlain
1. Which organelle is responsible for synthesizing ribosomal
RNA?
A. Nucleus
B. Nucleolus
C. Ribosome
D. Golgi apparatus
Correct Answer: B
Rationale: The nucleolus within the nucleus produces rRNA for
ribosome assembly.
2. Which transport mechanism requires vesicles to move
substances?
A. Diffusion
B. Osmosis
C. Endocytosis
D. Facilitated diffusion
,Correct Answer: C
Rationale: Endocytosis uses vesicles to engulf extracellular
materials.
3. Which macromolecule serves as the main component of cell
membranes?
A. Protein
B. Phospholipid
C. Carbohydrate
D. Nucleic acid
Correct Answer: B
Rationale: Phospholipids form the bilayer structure of membranes.
4. Which organelle is responsible for packaging and shipping
proteins?
A. Ribosome
B. Golgi apparatus
C. Smooth ER
D. Lysosome
Correct Answer: B
Rationale: Golgi apparatus modifies, sorts, and packages proteins
for transport.
5. Facilitated diffusion differs from simple diffusion because it:
,A. Uses ATP
B. Requires transport proteins
C. Moves molecules against the gradient
D. Only moves water
Correct Answer: B
Rationale: Facilitated diffusion uses proteins to assist passive
transport.
6. Which organelle is known as the “powerhouse” of the cell?
A. Ribosome
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct Answer: B
Rationale: Mitochondria produce ATP through cellular respiration.
7. Which phase of the cell cycle involves DNA replication?
A. G1
B. S
C. G2
D. M
Correct Answer: B
Rationale: The S phase is where the cell duplicates its DNA.
, 8. Which organelle detoxifies drugs and synthesizes lipids?
A. Smooth ER
B. Rough ER
C. Lysosome
D. Golgi apparatus
Correct Answer: A
Rationale: Smooth ER is responsible for lipid synthesis and
detoxification.
9. Which macromolecule stores and transmits genetic
information?
A. Protein
B. Lipid
C. Nucleic acid
D. Carbohydrate
Correct Answer: C
Rationale: DNA and RNA carry genetic instructions for cell
function.
10. Which organelle contains digestive enzymes to break down
macromolecules?
A. Ribosome
B. Lysosome
