BIOS 251 Midterm Exam 4 (Latest Update
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A - Chamberlain
1. Which organelle is the site of ATP production?
A. Ribosome
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct answer: B
Correct answer: Mitochondria generate ATP through cellular
respiration, supplying energy for the cell.
2. Which macromolecule is primarily responsible for storing
genetic information?
A. Protein
B. Lipid
C. Nucleic acid
D. Carbohydrate
,Correct answer: C
Correct answer: DNA stores hereditary information, while RNA
helps transmit it for protein synthesis.
3. Which organelle modifies, sorts, and packages proteins for
secretion?
A. Golgi apparatus
B. Rough ER
C. Smooth ER
D. Lysosome
Correct answer: A
Correct answer: The Golgi apparatus prepares proteins for
transport inside vesicles.
4. Which macromolecule serves as a long-term energy storage in
animals?
A. Lipid
B. Protein
C. Carbohydrate
D. Nucleic acid
Correct answer: A
Correct answer: Triglycerides stored in adipose tissue provide long-
term energy.
5. Which organelle is responsible for protein synthesis?
,A. Lysosome
B. Ribosome
C. Smooth ER
D. Golgi apparatus
Correct answer: B
Correct answer: Ribosomes translate mRNA into polypeptides,
forming proteins.
6. Which macromolecule forms plant cell walls?
A. Cellulose
B. Starch
C. Glycogen
D. Chitin
Correct answer: A
Correct answer: Cellulose provides structural rigidity to plant cells.
7. Which organelle detoxifies hydrogen peroxide?
A. Lysosome
B. Peroxisome
C. Smooth ER
D. Golgi apparatus
Correct answer: B
Correct answer: Peroxisomes metabolize reactive oxygen species
and detoxify harmful compounds.
, 8. Which phase of the cell cycle is characterized by DNA
replication?
A. G1
B. S
C. G2
D. M
Correct answer: B
Correct answer: S phase synthesizes an exact copy of the cell’s
DNA.
9. Which macromolecule is composed of amino acids linked by
peptide bonds?
A. Protein
B. Lipid
C. Carbohydrate
D. Nucleic acid
Correct answer: A
Correct answer: Proteins are chains of amino acids that fold into
functional structures.
10. Which organelle stores calcium ions for signaling?
A. Smooth ER
B. Rough ER
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A - Chamberlain
1. Which organelle is the site of ATP production?
A. Ribosome
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct answer: B
Correct answer: Mitochondria generate ATP through cellular
respiration, supplying energy for the cell.
2. Which macromolecule is primarily responsible for storing
genetic information?
A. Protein
B. Lipid
C. Nucleic acid
D. Carbohydrate
,Correct answer: C
Correct answer: DNA stores hereditary information, while RNA
helps transmit it for protein synthesis.
3. Which organelle modifies, sorts, and packages proteins for
secretion?
A. Golgi apparatus
B. Rough ER
C. Smooth ER
D. Lysosome
Correct answer: A
Correct answer: The Golgi apparatus prepares proteins for
transport inside vesicles.
4. Which macromolecule serves as a long-term energy storage in
animals?
A. Lipid
B. Protein
C. Carbohydrate
D. Nucleic acid
Correct answer: A
Correct answer: Triglycerides stored in adipose tissue provide long-
term energy.
5. Which organelle is responsible for protein synthesis?
,A. Lysosome
B. Ribosome
C. Smooth ER
D. Golgi apparatus
Correct answer: B
Correct answer: Ribosomes translate mRNA into polypeptides,
forming proteins.
6. Which macromolecule forms plant cell walls?
A. Cellulose
B. Starch
C. Glycogen
D. Chitin
Correct answer: A
Correct answer: Cellulose provides structural rigidity to plant cells.
7. Which organelle detoxifies hydrogen peroxide?
A. Lysosome
B. Peroxisome
C. Smooth ER
D. Golgi apparatus
Correct answer: B
Correct answer: Peroxisomes metabolize reactive oxygen species
and detoxify harmful compounds.
, 8. Which phase of the cell cycle is characterized by DNA
replication?
A. G1
B. S
C. G2
D. M
Correct answer: B
Correct answer: S phase synthesizes an exact copy of the cell’s
DNA.
9. Which macromolecule is composed of amino acids linked by
peptide bonds?
A. Protein
B. Lipid
C. Carbohydrate
D. Nucleic acid
Correct answer: A
Correct answer: Proteins are chains of amino acids that fold into
functional structures.
10. Which organelle stores calcium ions for signaling?
A. Smooth ER
B. Rough ER
