BIOS 242 Lab Exam 3 (Latest Update
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A - Chamberlain
1. Which type of microscope is used to observe living cells in
culture?
A. Phase-contrast microscope
B. Transmission electron microscope
C. Scanning electron microscope
D. Fluorescence microscope
Correct Answer: A
Rationale: Phase-contrast microscopes enhance contrast in
transparent, living cells without staining.
2. Which objective lens provides the highest magnification using a
light microscope?
A. Oil-immersion (100x)
B. High-power (40x)
C. Low-power (10x)
D. Scanning (4x)
Correct Answer: A
,Rationale: Oil-immersion lenses achieve the highest resolution by
using immersion oil.
3. Which knob should you use for coarse focusing under low
power?
A. Coarse focus
B. Fine focus
C. Stage adjustment
D. Diaphragm
Correct Answer: A
Rationale: Coarse focus moves the stage quickly to bring the
specimen into view.
4. Which knob is used for fine adjustments under high power?
A. Fine focus
B. Coarse focus
C. Diaphragm
D. Condenser
Correct Answer: A
Rationale: Fine focus allows precise focusing without damaging the
slide.
5. Which organelle contains digestive enzymes for breaking down
waste?
,A. Lysosome
B. Ribosome
C. Golgi apparatus
D. Mitochondria
Correct Answer: A
Rationale: Lysosomes digest cellular debris and worn-out
organelles.
6. Which organelle produces ATP through cellular respiration?
A. Mitochondria
B. Ribosome
C. Golgi apparatus
D. Lysosome
Correct Answer: A
Rationale: Mitochondria convert glucose and oxygen into energy
(ATP).
7. Which organelle is responsible for protein synthesis?
A. Ribosome
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct Answer: A
Rationale: Ribosomes translate mRNA into polypeptides.
8. Which organelle modifies and packages proteins for secretion?
, A. Golgi apparatus
B. Mitochondria
C. Ribosome
D. Lysosome
Correct Answer: A
Rationale: Golgi processes and sorts proteins for transport.
9. Which tissue lines the alveoli for gas exchange?
A. Simple squamous epithelium
B. Stratified squamous
C. Simple cuboidal
D. Pseudostratified columnar
Correct Answer: A
Rationale: Thin squamous cells allow efficient diffusion of oxygen
and CO₂.
10. Which tissue lines the trachea and has cilia?
A. Pseudostratified columnar epithelium
B. Simple cuboidal
C. Stratified squamous
D. Simple squamous
Correct Answer: A
Rationale: Cilia move mucus and trapped particles out of the
airway.
11. Which connective tissue resists tension in a single direction?
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A - Chamberlain
1. Which type of microscope is used to observe living cells in
culture?
A. Phase-contrast microscope
B. Transmission electron microscope
C. Scanning electron microscope
D. Fluorescence microscope
Correct Answer: A
Rationale: Phase-contrast microscopes enhance contrast in
transparent, living cells without staining.
2. Which objective lens provides the highest magnification using a
light microscope?
A. Oil-immersion (100x)
B. High-power (40x)
C. Low-power (10x)
D. Scanning (4x)
Correct Answer: A
,Rationale: Oil-immersion lenses achieve the highest resolution by
using immersion oil.
3. Which knob should you use for coarse focusing under low
power?
A. Coarse focus
B. Fine focus
C. Stage adjustment
D. Diaphragm
Correct Answer: A
Rationale: Coarse focus moves the stage quickly to bring the
specimen into view.
4. Which knob is used for fine adjustments under high power?
A. Fine focus
B. Coarse focus
C. Diaphragm
D. Condenser
Correct Answer: A
Rationale: Fine focus allows precise focusing without damaging the
slide.
5. Which organelle contains digestive enzymes for breaking down
waste?
,A. Lysosome
B. Ribosome
C. Golgi apparatus
D. Mitochondria
Correct Answer: A
Rationale: Lysosomes digest cellular debris and worn-out
organelles.
6. Which organelle produces ATP through cellular respiration?
A. Mitochondria
B. Ribosome
C. Golgi apparatus
D. Lysosome
Correct Answer: A
Rationale: Mitochondria convert glucose and oxygen into energy
(ATP).
7. Which organelle is responsible for protein synthesis?
A. Ribosome
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct Answer: A
Rationale: Ribosomes translate mRNA into polypeptides.
8. Which organelle modifies and packages proteins for secretion?
, A. Golgi apparatus
B. Mitochondria
C. Ribosome
D. Lysosome
Correct Answer: A
Rationale: Golgi processes and sorts proteins for transport.
9. Which tissue lines the alveoli for gas exchange?
A. Simple squamous epithelium
B. Stratified squamous
C. Simple cuboidal
D. Pseudostratified columnar
Correct Answer: A
Rationale: Thin squamous cells allow efficient diffusion of oxygen
and CO₂.
10. Which tissue lines the trachea and has cilia?
A. Pseudostratified columnar epithelium
B. Simple cuboidal
C. Stratified squamous
D. Simple squamous
Correct Answer: A
Rationale: Cilia move mucus and trapped particles out of the
airway.
11. Which connective tissue resists tension in a single direction?
