Biology MCQs – Page 23

✅ A. Oxidation.

Option A: Oxidation. Option B: Reduction. Option C: Redox. Option D: None of the above. Correct Answer : Oxidation. Read more

✅ A. 680 nm

Option A: 680 nm Option B: 100 m Option C: 700 nm Option D: 670 nm Correct Answer : 680 nm Read more

✅ D. All of these

Option A: assimilatory power Option B: chemical energy Option C: energized electrons Option D: All of these Correct Answer : All of these Read more

✅ A. Grana

Option A: Grana Option B: Stroma Option C: Nucleus Option D: None of these Correct Answer : Grana Read more

✅ A. C55H72O5N4Mg

Option A: C55H72O5N4Mg Option B: C55H70O6N4Mg Option C: C50H72O6N4Mg Option D: C55H70O5N4Mg Correct Answer : C55H72O5N4Mg Read more

✅ C. 1-2 %

Option A: 0.03 0.04% Option B: 10% Option C: 1-2 % Option D: 50% Correct Answer : 1-2 % Read more

✅ A. Chlorophyll a

Option A: Chlorophyll a Option B: Chlorophyll Option C: B. Option D: C. Chlorophyll c Correct Answer : Chlorophyll a Read more

✅ B. CO2

Option A: O2 Option B: CO2 Option C: H2O Option D: light energy Correct Answer : CO2 Read more

✅ D. Grana

Option A: Thylakoid Option B: Storma Option C: Chloroplast Option D: Grana Correct Answer : Grana Read more

✅ D. Both A and B

Option A: Orange Option B: Red Option C: Green Option D: Both A and B Correct Answer : Both A and B Read more

✅ D. Spirogyra

Option A: Algae Option B: Fungi Option C: Bacteria Option D: Spirogyra Correct Answer : Spirogyra Read more

✅ D. Water

Option A: Carbon tetrachloride Option B: Alcohol Option C: Organic solvents Option D: Water Correct Answer : Water Read more

✅ C. Red

Option A: Blue Option B: Orange Option C: Red Option D: Violet Correct Answer : Red Read more

✅ D. It is hydrophobic

Option A: It is a porphyrin ring or tetrapyrrole ring structure Option B: It is flat, square and light absorbing Option C: Composed of carbon and nitrogen atoms with Magnesium as central metal ion, which is coordinated with nitrogen. Option D: It is hydrophobic Correct Answer : It is hydrophobic Read more

✅ C. 10%

Option A: 1-2% Option B: 5% Option C: 10% Option D: 20% Correct Answer : 10% Read more

✅ D. 0 molecule

Option A: 1 molecule Option B: 6 molecules Option C: 3 molecules Option D: 0 molecule Correct Answer : 0 molecule Read more

✅ B. Compensation point

Option A: Neutral point Option B: Compensation point Option C: Parallel point Option D: Competitive point Correct Answer : Compensation point Read more

✅ B. 0.03-0.04

Option A: 0.02-0.03 Option B: 0.03-0.04 Option C: 0.04-0.05 Option D: 0.05-0.06 Correct Answer : 0.03-0.04 Read more

✅ A. Bacteria

Option A: Bacteria Option B: Algae Option C: Protenema Option D: Cyanobacteria Correct Answer : Bacteria Read more

✅ D. 700

Option A: 600 Option B: 650 Option C: 680 Option D: 700 Correct Answer : 700 Read more