TAMU BIOLOGY 112 LAB PRACTICAL 2 EXAM
EXAM STUDY GUIDE 2026/2027
ACCURATE QUESTIONS WITH CORRECT
DETAILED SOLUTIONS || 100%
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SECTION 1: MICROSCOPY & CELL STRUCTURE (Q1–Q30)
Q1. Which part of a compound microscope controls the amount of light reaching
the specimen?
A. Ocular lens
B. Stage
C. Iris diaphragm
D. Coarse adjustment knob
Correct Answer: C ✅
Q2. What is the total magnification when using a 10x ocular and 40x objective
lens?
A. 40x
B. 100x
C. 400x
D. 1000x
Correct Answer: C ✅
,Q3. Which organelle is responsible for ATP production?
A. Nucleus
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct Answer: B ✅
Q4. Which organelle modifies and packages proteins?
A. Ribosome
B. Endoplasmic reticulum
C. Golgi apparatus
D. Nucleus
Correct Answer: C ✅
Q5. What is the main function of ribosomes?
A. DNA storage
B. Lipid synthesis
C. Protein synthesis
D. Energy production
Correct Answer: C ✅
,Q6. Which microscope provides the highest resolution?
A. Light microscope
B. Compound microscope
C. Electron microscope
D. Dissecting microscope
Correct Answer: C ✅
Q7. Which organelle contains digestive enzymes?
A. Vacuole
B. Lysosome
C. Mitochondria
D. Ribosome
Correct Answer: B ✅
Q8. Which organelle is the site of photosynthesis?
A. Mitochondria
B. Chloroplast
C. Ribosome
D. Golgi apparatus
Correct Answer: B ✅
Q9. What is the main function of the cell wall in plant cells?
A. Energy production
B. Protein synthesis
, C. Structural support and protection
D. DNA storage
Correct Answer: C ✅
Q10. Which of the following is NOT found in prokaryotic cells?
A. Ribosomes
B. Cell membrane
C. Membrane-bound nucleus
D. DNA
Correct Answer: C ✅
Q11. The movement of molecules from high concentration to low concentration
without energy input is called:
A. Active transport
B. Diffusion
C. Endocytosis
D. Exocytosis
Correct Answer: B ✅
Q12. Osmosis specifically refers to the movement of:
A. Proteins
B. Glucose
C. Water
EXAM STUDY GUIDE 2026/2027
ACCURATE QUESTIONS WITH CORRECT
DETAILED SOLUTIONS || 100%
GUARANTEED PASS NEWEST VERSION
SECTION 1: MICROSCOPY & CELL STRUCTURE (Q1–Q30)
Q1. Which part of a compound microscope controls the amount of light reaching
the specimen?
A. Ocular lens
B. Stage
C. Iris diaphragm
D. Coarse adjustment knob
Correct Answer: C ✅
Q2. What is the total magnification when using a 10x ocular and 40x objective
lens?
A. 40x
B. 100x
C. 400x
D. 1000x
Correct Answer: C ✅
,Q3. Which organelle is responsible for ATP production?
A. Nucleus
B. Mitochondria
C. Golgi apparatus
D. Lysosome
Correct Answer: B ✅
Q4. Which organelle modifies and packages proteins?
A. Ribosome
B. Endoplasmic reticulum
C. Golgi apparatus
D. Nucleus
Correct Answer: C ✅
Q5. What is the main function of ribosomes?
A. DNA storage
B. Lipid synthesis
C. Protein synthesis
D. Energy production
Correct Answer: C ✅
,Q6. Which microscope provides the highest resolution?
A. Light microscope
B. Compound microscope
C. Electron microscope
D. Dissecting microscope
Correct Answer: C ✅
Q7. Which organelle contains digestive enzymes?
A. Vacuole
B. Lysosome
C. Mitochondria
D. Ribosome
Correct Answer: B ✅
Q8. Which organelle is the site of photosynthesis?
A. Mitochondria
B. Chloroplast
C. Ribosome
D. Golgi apparatus
Correct Answer: B ✅
Q9. What is the main function of the cell wall in plant cells?
A. Energy production
B. Protein synthesis
, C. Structural support and protection
D. DNA storage
Correct Answer: C ✅
Q10. Which of the following is NOT found in prokaryotic cells?
A. Ribosomes
B. Cell membrane
C. Membrane-bound nucleus
D. DNA
Correct Answer: C ✅
Q11. The movement of molecules from high concentration to low concentration
without energy input is called:
A. Active transport
B. Diffusion
C. Endocytosis
D. Exocytosis
Correct Answer: B ✅
Q12. Osmosis specifically refers to the movement of:
A. Proteins
B. Glucose
C. Water
