BIOS 251 Week 4 Quiz Exam 1 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which organelle is responsible for ATP production in
eukaryotic cells?
A. Nucleus
B. Ribosome
C. Mitochondrion
D. Golgi apparatus
Correct answer: C
Rationale: Mitochondria produce ATP through oxidative
phosphorylation.
2. Which macromolecule is the main component of cell
membranes?
A. Proteins
B. Carbohydrates
C. Lipids
,D. Nucleic acids
Correct answer: C
Rationale: Phospholipids form the lipid bilayer of membranes.
3. Which organelle modifies, sorts, and packages proteins for
secretion?
A. Endoplasmic reticulum
B. Golgi apparatus
C. Lysosome
D. Mitochondrion
Correct answer: B
Rationale: The Golgi apparatus processes and packages proteins
and lipids.
4. Which organelle is the site of protein synthesis?
A. Ribosome
B. Mitochondrion
C. Lysosome
D. Nucleus
Correct answer: A
Rationale: Ribosomes translate mRNA into polypeptides.
5. Which organelle is involved in detoxification and lipid
synthesis?
,A. Rough ER
B. Smooth ER
C. Golgi apparatus
D. Lysosome
Correct answer: B
Rationale: Smooth ER synthesizes lipids and detoxifies drugs and
toxins.
6. Which organelle contains hydrolytic enzymes for intracellular
digestion?
A. Lysosome
B. Golgi apparatus
C. Ribosome
D. Peroxisome
Correct answer: A
Rationale: Lysosomes break down macromolecules and damaged
organelles.
7. Which organelle contains catalase to degrade hydrogen
peroxide?
A. Lysosome
B. Peroxisome
C. Ribosome
, D. Mitochondrion
Correct answer: B
Rationale: Peroxisomes detoxify harmful compounds including
H₂O₂.
8. Which structure is responsible for protein folding and quality
control?
A. Ribosome
B. Rough ER
C. Golgi apparatus
D. Nucleus
Correct answer: B
Rationale: Rough ER folds proteins and assists in quality control
before secretion.
9. Which organelle contains chromatin?
A. Nucleus
B. Ribosome
C. Mitochondrion
D. Lysosome
Correct answer: A
Rationale: The nucleus contains DNA and associated proteins
(chromatin).
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which organelle is responsible for ATP production in
eukaryotic cells?
A. Nucleus
B. Ribosome
C. Mitochondrion
D. Golgi apparatus
Correct answer: C
Rationale: Mitochondria produce ATP through oxidative
phosphorylation.
2. Which macromolecule is the main component of cell
membranes?
A. Proteins
B. Carbohydrates
C. Lipids
,D. Nucleic acids
Correct answer: C
Rationale: Phospholipids form the lipid bilayer of membranes.
3. Which organelle modifies, sorts, and packages proteins for
secretion?
A. Endoplasmic reticulum
B. Golgi apparatus
C. Lysosome
D. Mitochondrion
Correct answer: B
Rationale: The Golgi apparatus processes and packages proteins
and lipids.
4. Which organelle is the site of protein synthesis?
A. Ribosome
B. Mitochondrion
C. Lysosome
D. Nucleus
Correct answer: A
Rationale: Ribosomes translate mRNA into polypeptides.
5. Which organelle is involved in detoxification and lipid
synthesis?
,A. Rough ER
B. Smooth ER
C. Golgi apparatus
D. Lysosome
Correct answer: B
Rationale: Smooth ER synthesizes lipids and detoxifies drugs and
toxins.
6. Which organelle contains hydrolytic enzymes for intracellular
digestion?
A. Lysosome
B. Golgi apparatus
C. Ribosome
D. Peroxisome
Correct answer: A
Rationale: Lysosomes break down macromolecules and damaged
organelles.
7. Which organelle contains catalase to degrade hydrogen
peroxide?
A. Lysosome
B. Peroxisome
C. Ribosome
, D. Mitochondrion
Correct answer: B
Rationale: Peroxisomes detoxify harmful compounds including
H₂O₂.
8. Which structure is responsible for protein folding and quality
control?
A. Ribosome
B. Rough ER
C. Golgi apparatus
D. Nucleus
Correct answer: B
Rationale: Rough ER folds proteins and assists in quality control
before secretion.
9. Which organelle contains chromatin?
A. Nucleus
B. Ribosome
C. Mitochondrion
D. Lysosome
Correct answer: A
Rationale: The nucleus contains DNA and associated proteins
(chromatin).
