BIOS 242 Lab Exam final (Latest Update
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A - Chamberlain
1. Which type of microscope allows observation of live cells in real
time?
A. Phase-contrast
B. Transmission electron
C. Scanning electron
D. Fluorescence
Correct Answer: A
Rationale: Phase-contrast microscopes enhance contrast in live,
unstained cells.
2. Which microscope uses electrons to visualize internal
structures at high resolution?
A. Transmission electron
B. Scanning electron
C. Light
D. Phase-contrast
,Correct Answer: A
Rationale: TEM produces detailed images of organelles and cell
interiors.
3. Which microscope is used to view 3D surface structures?
A. Scanning electron
B. Transmission electron
C. Light
D. Phase-contrast
Correct Answer: A
Rationale: SEM scans the specimen surface to produce a 3D image.
4. Which knob should you use to bring a specimen into view
under low power?
A. Coarse focus
B. Fine focus
C. Diaphragm
D. Condenser
Correct Answer: A
Rationale: Coarse focus moves the stage quickly for initial focusing.
5. Which knob is used to sharpen focus under high power?
A. Fine focus
B. Coarse focus
C. Diaphragm
,D. Stage adjustment
Correct Answer: A
Rationale: Fine focus allows precise focusing without damaging the
slide.
6. Which organelle produces ATP?
A. Mitochondria
B. Ribosome
C. Lysosome
D. Golgi apparatus
Correct Answer: A
Rationale: Mitochondria convert glucose and oxygen into ATP.
7. Which organelle modifies and packages proteins?
A. Golgi apparatus
B. Ribosome
C. Lysosome
D. Smooth ER
Correct Answer: A
Rationale: Golgi apparatus processes and sorts proteins for
secretion.
8. Which organelle contains digestive enzymes for cellular waste?
A. Lysosome
B. Ribosome
, C. Golgi apparatus
D. Mitochondria
Correct Answer: A
Rationale: Lysosomes degrade macromolecules and damaged
organelles.
9. Which organelle synthesizes proteins?
A. Ribosome
B. Smooth ER
C. Golgi
D. Lysosome
Correct Answer: A
Rationale: Ribosomes translate mRNA into polypeptides.
10. Which organelle synthesizes lipids and detoxifies chemicals?
A. Smooth ER
B. Rough ER
C. Golgi
D. Lysosome
Correct Answer: A
Rationale: Smooth ER produces lipids and metabolizes toxins.
11. Which epithelium is ideal for gas exchange in alveoli?
A. Simple squamous
B. Stratified squamous
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A - Chamberlain
1. Which type of microscope allows observation of live cells in real
time?
A. Phase-contrast
B. Transmission electron
C. Scanning electron
D. Fluorescence
Correct Answer: A
Rationale: Phase-contrast microscopes enhance contrast in live,
unstained cells.
2. Which microscope uses electrons to visualize internal
structures at high resolution?
A. Transmission electron
B. Scanning electron
C. Light
D. Phase-contrast
,Correct Answer: A
Rationale: TEM produces detailed images of organelles and cell
interiors.
3. Which microscope is used to view 3D surface structures?
A. Scanning electron
B. Transmission electron
C. Light
D. Phase-contrast
Correct Answer: A
Rationale: SEM scans the specimen surface to produce a 3D image.
4. Which knob should you use to bring a specimen into view
under low power?
A. Coarse focus
B. Fine focus
C. Diaphragm
D. Condenser
Correct Answer: A
Rationale: Coarse focus moves the stage quickly for initial focusing.
5. Which knob is used to sharpen focus under high power?
A. Fine focus
B. Coarse focus
C. Diaphragm
,D. Stage adjustment
Correct Answer: A
Rationale: Fine focus allows precise focusing without damaging the
slide.
6. Which organelle produces ATP?
A. Mitochondria
B. Ribosome
C. Lysosome
D. Golgi apparatus
Correct Answer: A
Rationale: Mitochondria convert glucose and oxygen into ATP.
7. Which organelle modifies and packages proteins?
A. Golgi apparatus
B. Ribosome
C. Lysosome
D. Smooth ER
Correct Answer: A
Rationale: Golgi apparatus processes and sorts proteins for
secretion.
8. Which organelle contains digestive enzymes for cellular waste?
A. Lysosome
B. Ribosome
, C. Golgi apparatus
D. Mitochondria
Correct Answer: A
Rationale: Lysosomes degrade macromolecules and damaged
organelles.
9. Which organelle synthesizes proteins?
A. Ribosome
B. Smooth ER
C. Golgi
D. Lysosome
Correct Answer: A
Rationale: Ribosomes translate mRNA into polypeptides.
10. Which organelle synthesizes lipids and detoxifies chemicals?
A. Smooth ER
B. Rough ER
C. Golgi
D. Lysosome
Correct Answer: A
Rationale: Smooth ER produces lipids and metabolizes toxins.
11. Which epithelium is ideal for gas exchange in alveoli?
A. Simple squamous
B. Stratified squamous
