BIOS 255 Week 4 Quiz Exam 4 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the primary function of mitochondria?
A. Photosynthesis
B. Energy production
C. Protein synthesis
D. Lipid storage
Correct Answer: B
Rationale: Mitochondria produce ATP through cellular respiration.
2. What is the main function of chloroplasts?
A. Energy production
B. Photosynthesis
C. Protein synthesis
D. Digestion
Correct Answer: B
Rationale: Chloroplasts convert light energy into chemical energy.
3. Which organelle is responsible for protein synthesis?
,A. Ribosome
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct Answer: A
Rationale: Ribosomes translate mRNA into proteins.
4. Which organelle modifies and packages proteins?
A. Golgi apparatus
B. Rough ER
C. Lysosome
D. Smooth ER
Correct Answer: A
Rationale: Golgi apparatus processes and directs proteins for
transport.
5. Which organelle detoxifies chemicals and synthesizes lipids?
A. Rough ER
B. Smooth ER
C. Lysosome
D. Ribosome
Correct Answer: B
Rationale: Smooth ER metabolizes toxins and produces lipids.
6. Which organelle contains digestive enzymes?
,A. Lysosome
B. Ribosome
C. Golgi apparatus
D. Smooth ER
Correct Answer: A
Rationale: Lysosomes break down macromolecules and cellular
debris.
7. Which macromolecule forms the main structure of cell
membranes?
A. Carbohydrates
B. Proteins
C. Lipids
D. Nucleic acids
Correct Answer: C
Rationale: Phospholipids form the bilayer of cell membranes.
8. Which bond holds water molecules together?
A. Covalent
B. Ionic
C. Hydrogen
D. Peptide
Correct Answer: C
Rationale: Hydrogen bonds provide cohesion and surface tension.
9. Which type of bond links amino acids in a protein?
, A. Hydrogen
B. Peptide
C. Ionic
D. Covalent
Correct Answer: B
Rationale: Peptide bonds form the backbone of polypeptides.
10. Which biomolecule stores genetic information?
A. Carbohydrates
B. Proteins
C. Lipids
D. Nucleic acids
Correct Answer: D
Rationale: DNA and RNA carry hereditary information.
11. Which sugar is found in DNA?
A. Ribose
B. Deoxyribose
C. Glucose
D. Fructose
Correct Answer: B
Rationale: Deoxyribose is the sugar in DNA.
12. Which sugar is found in RNA?
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the primary function of mitochondria?
A. Photosynthesis
B. Energy production
C. Protein synthesis
D. Lipid storage
Correct Answer: B
Rationale: Mitochondria produce ATP through cellular respiration.
2. What is the main function of chloroplasts?
A. Energy production
B. Photosynthesis
C. Protein synthesis
D. Digestion
Correct Answer: B
Rationale: Chloroplasts convert light energy into chemical energy.
3. Which organelle is responsible for protein synthesis?
,A. Ribosome
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct Answer: A
Rationale: Ribosomes translate mRNA into proteins.
4. Which organelle modifies and packages proteins?
A. Golgi apparatus
B. Rough ER
C. Lysosome
D. Smooth ER
Correct Answer: A
Rationale: Golgi apparatus processes and directs proteins for
transport.
5. Which organelle detoxifies chemicals and synthesizes lipids?
A. Rough ER
B. Smooth ER
C. Lysosome
D. Ribosome
Correct Answer: B
Rationale: Smooth ER metabolizes toxins and produces lipids.
6. Which organelle contains digestive enzymes?
,A. Lysosome
B. Ribosome
C. Golgi apparatus
D. Smooth ER
Correct Answer: A
Rationale: Lysosomes break down macromolecules and cellular
debris.
7. Which macromolecule forms the main structure of cell
membranes?
A. Carbohydrates
B. Proteins
C. Lipids
D. Nucleic acids
Correct Answer: C
Rationale: Phospholipids form the bilayer of cell membranes.
8. Which bond holds water molecules together?
A. Covalent
B. Ionic
C. Hydrogen
D. Peptide
Correct Answer: C
Rationale: Hydrogen bonds provide cohesion and surface tension.
9. Which type of bond links amino acids in a protein?
, A. Hydrogen
B. Peptide
C. Ionic
D. Covalent
Correct Answer: B
Rationale: Peptide bonds form the backbone of polypeptides.
10. Which biomolecule stores genetic information?
A. Carbohydrates
B. Proteins
C. Lipids
D. Nucleic acids
Correct Answer: D
Rationale: DNA and RNA carry hereditary information.
11. Which sugar is found in DNA?
A. Ribose
B. Deoxyribose
C. Glucose
D. Fructose
Correct Answer: B
Rationale: Deoxyribose is the sugar in DNA.
12. Which sugar is found in RNA?
