BIOS 252 Lab Practical Exam final (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
it
1. Which organelle is the powerhouse of the cell?
A. Ribosome
B. Nucleus
C. Lysosome
D. Mitochondria
Correct Answer: D
Rationale: Mitochondria produce ATP via oxidative
phosphorylation, supplying energy for the cell.
2. Which organelle synthesizes proteins?
A. Rough ER
B. Smooth ER
C. Golgi apparatus
D. Ribosome
Correct Answer: D
,Rationale: Ribosomes translate mRNA into polypeptides, forming
proteins.
3. Which organelle packages and modifies proteins for secretion?
A. Golgi apparatus
B. Ribosome
C. Lysosome
D. Smooth ER
Correct Answer: A
Rationale: Golgi apparatus sorts, modifies, and packages proteins
for transport to their destinations.
4. Which organelle digests cellular waste?
A. Lysosome
B. Ribosome
C. Mitochondria
D. Golgi apparatus
Correct Answer: A
Rationale: Lysosomes contain hydrolytic enzymes that break down
macromolecules and damaged organelles.
5. Which organelle stores calcium in muscle cells?
A. Smooth ER
B. Sarcoplasmic reticulum
C. Nucleus
,D. Golgi apparatus
Correct Answer: B
Rationale: Sarcoplasmic reticulum releases calcium to trigger
muscle contraction.
6. Which organelle detoxifies chemicals and synthesizes lipids?
A. Rough ER
B. Smooth ER
C. Lysosome
D. Golgi apparatus
Correct Answer: B
Rationale: Smooth ER lacks ribosomes and is responsible for lipid
metabolism and detoxification.
7. Which organelle contains DNA and regulates cellular
activities?
A. Nucleus
B. Ribosome
C. Mitochondria
D. Lysosome
Correct Answer: A
Rationale: Nucleus houses the cell’s genetic material and controls
transcription and cell division.
8. Which organelle is responsible for protein secretion?
, A. Rough ER
B. Smooth ER
C. Lysosome
D. Golgi apparatus
Correct Answer: A
Rationale: Rough ER, with attached ribosomes, synthesizes and
transports proteins to the Golgi.
9. Which organelle synthesizes lipids and steroid hormones?
A. Rough ER
B. Smooth ER
C. Golgi apparatus
D. Lysosome
Correct Answer: B
Rationale: Smooth ER synthesizes lipids and steroid hormones in
specific cells like adrenal cortex cells.
10. Which organelle neutralizes hydrogen peroxide?
A. Lysosome
B. Peroxisome
C. Mitochondria
D. Smooth ER
Correct Answer: B
Rationale: Peroxisomes contain catalase to convert hydrogen
peroxide into water and oxygen.
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
it
1. Which organelle is the powerhouse of the cell?
A. Ribosome
B. Nucleus
C. Lysosome
D. Mitochondria
Correct Answer: D
Rationale: Mitochondria produce ATP via oxidative
phosphorylation, supplying energy for the cell.
2. Which organelle synthesizes proteins?
A. Rough ER
B. Smooth ER
C. Golgi apparatus
D. Ribosome
Correct Answer: D
,Rationale: Ribosomes translate mRNA into polypeptides, forming
proteins.
3. Which organelle packages and modifies proteins for secretion?
A. Golgi apparatus
B. Ribosome
C. Lysosome
D. Smooth ER
Correct Answer: A
Rationale: Golgi apparatus sorts, modifies, and packages proteins
for transport to their destinations.
4. Which organelle digests cellular waste?
A. Lysosome
B. Ribosome
C. Mitochondria
D. Golgi apparatus
Correct Answer: A
Rationale: Lysosomes contain hydrolytic enzymes that break down
macromolecules and damaged organelles.
5. Which organelle stores calcium in muscle cells?
A. Smooth ER
B. Sarcoplasmic reticulum
C. Nucleus
,D. Golgi apparatus
Correct Answer: B
Rationale: Sarcoplasmic reticulum releases calcium to trigger
muscle contraction.
6. Which organelle detoxifies chemicals and synthesizes lipids?
A. Rough ER
B. Smooth ER
C. Lysosome
D. Golgi apparatus
Correct Answer: B
Rationale: Smooth ER lacks ribosomes and is responsible for lipid
metabolism and detoxification.
7. Which organelle contains DNA and regulates cellular
activities?
A. Nucleus
B. Ribosome
C. Mitochondria
D. Lysosome
Correct Answer: A
Rationale: Nucleus houses the cell’s genetic material and controls
transcription and cell division.
8. Which organelle is responsible for protein secretion?
, A. Rough ER
B. Smooth ER
C. Lysosome
D. Golgi apparatus
Correct Answer: A
Rationale: Rough ER, with attached ribosomes, synthesizes and
transports proteins to the Golgi.
9. Which organelle synthesizes lipids and steroid hormones?
A. Rough ER
B. Smooth ER
C. Golgi apparatus
D. Lysosome
Correct Answer: B
Rationale: Smooth ER synthesizes lipids and steroid hormones in
specific cells like adrenal cortex cells.
10. Which organelle neutralizes hydrogen peroxide?
A. Lysosome
B. Peroxisome
C. Mitochondria
D. Smooth ER
Correct Answer: B
Rationale: Peroxisomes contain catalase to convert hydrogen
peroxide into water and oxygen.
