BIOS 256 Lab Practical Exam 1 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. Which microscope part is used to focus light onto the
specimen?
A. Eyepiece
B. Objective lens
C. Condenser
D. Stage
Correct Answer: C
Rationale: The condenser concentrates light onto the specimen for
better illumination.
2. Which part controls the amount of light reaching the
specimen?
A. Diaphragm
B. Condenser
C. Objective lens
D. Arm
Correct Answer: A
,Rationale: The diaphragm regulates light intensity for optimal
viewing.
3. Which objective lens provides the highest magnification?
A. 4x
B. 10x
C. 40x
D. 100x (oil immersion)
Correct Answer: D
Rationale: The oil immersion lens provides maximum magnification
and resolution.
4. Which part is used for coarse focusing?
A. Fine adjustment knob
B. Coarse adjustment knob
C. Stage clips
D. Arm
Correct Answer: B
Rationale: Coarse adjustment knob moves stage rapidly for initial
focus.
5. Which part is used for precise focusing?
A. Coarse adjustment knob
B. Fine adjustment knob
C. Condenser
,D. Base
Correct Answer: B
Rationale: Fine adjustment knob refines image clarity.
6. Which structure is the powerhouse of the cell?
A. Nucleus
B. Mitochondria
C. Ribosome
D. Golgi apparatus
Correct Answer: B
Rationale: Mitochondria produce ATP through cellular respiration.
7. Which organelle contains genetic material?
A. Nucleus
B. Mitochondria
C. Lysosome
D. Ribosome
Correct Answer: A
Rationale: Nucleus stores DNA and controls cell activities.
8. Which organelle synthesizes proteins?
A. Golgi apparatus
B. Ribosome
C. Lysosome
D. Smooth ER
, Correct Answer: B
Rationale: Ribosomes are sites of protein synthesis.
9. Which organelle modifies and packages proteins?
A. Golgi apparatus
B. Rough ER
C. Smooth ER
D. Nucleus
Correct Answer: A
Rationale: Golgi apparatus processes and packages proteins for
transport.
10. Which organelle detoxifies chemicals and synthesizes lipids?
A. Rough ER
B. Smooth ER
C. Golgi apparatus
D. Lysosome
Correct Answer: B
Rationale: Smooth ER is involved in lipid synthesis and
detoxification.
11. Which tissue type covers body surfaces?
A. Connective tissue
B. Muscle tissue
C. Epithelial tissue
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. Which microscope part is used to focus light onto the
specimen?
A. Eyepiece
B. Objective lens
C. Condenser
D. Stage
Correct Answer: C
Rationale: The condenser concentrates light onto the specimen for
better illumination.
2. Which part controls the amount of light reaching the
specimen?
A. Diaphragm
B. Condenser
C. Objective lens
D. Arm
Correct Answer: A
,Rationale: The diaphragm regulates light intensity for optimal
viewing.
3. Which objective lens provides the highest magnification?
A. 4x
B. 10x
C. 40x
D. 100x (oil immersion)
Correct Answer: D
Rationale: The oil immersion lens provides maximum magnification
and resolution.
4. Which part is used for coarse focusing?
A. Fine adjustment knob
B. Coarse adjustment knob
C. Stage clips
D. Arm
Correct Answer: B
Rationale: Coarse adjustment knob moves stage rapidly for initial
focus.
5. Which part is used for precise focusing?
A. Coarse adjustment knob
B. Fine adjustment knob
C. Condenser
,D. Base
Correct Answer: B
Rationale: Fine adjustment knob refines image clarity.
6. Which structure is the powerhouse of the cell?
A. Nucleus
B. Mitochondria
C. Ribosome
D. Golgi apparatus
Correct Answer: B
Rationale: Mitochondria produce ATP through cellular respiration.
7. Which organelle contains genetic material?
A. Nucleus
B. Mitochondria
C. Lysosome
D. Ribosome
Correct Answer: A
Rationale: Nucleus stores DNA and controls cell activities.
8. Which organelle synthesizes proteins?
A. Golgi apparatus
B. Ribosome
C. Lysosome
D. Smooth ER
, Correct Answer: B
Rationale: Ribosomes are sites of protein synthesis.
9. Which organelle modifies and packages proteins?
A. Golgi apparatus
B. Rough ER
C. Smooth ER
D. Nucleus
Correct Answer: A
Rationale: Golgi apparatus processes and packages proteins for
transport.
10. Which organelle detoxifies chemicals and synthesizes lipids?
A. Rough ER
B. Smooth ER
C. Golgi apparatus
D. Lysosome
Correct Answer: B
Rationale: Smooth ER is involved in lipid synthesis and
detoxification.
11. Which tissue type covers body surfaces?
A. Connective tissue
B. Muscle tissue
C. Epithelial tissue
