In the mitochondrial electron transport system, ubiquinone receives reducing equivalents via:
1. Both Complex I and Complex II
2. Complex III
3. Complex IV
4. Complex V

Subtopic:  ETS |
 85%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

The number of carbon atoms are 3 in all of the following molecules except:
1. Dihydroxyacetone phosphate
2. Glyceraldehyde 3-phosphate
3. Acetyl CoA
4. Pyruvic acid
Subtopic:  Glycolysis | Kreb's Cycle |
 81%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Fermentation is not a waste but it serves an important purpose which is:
1. Regeneration of NAD +
2. Formation of large number of ATP
3. Evolution of oxygen
4. Complete oxidation of pyruvic acid
Subtopic:  Fermentation |
 84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

What amount of energy is released from glucose during lactic acid fermentation?
1. Less than 7%
2. Approximately 15%
3. More than 18%
4. About 10%
Subtopic:  Fermentation |
 89%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?
1. Eight 2. Four
3. Six 4. Two
Subtopic:  Glycolysis |
 68%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

Match List-I with List II

List-I List-II
(a) ETS complex-I (i) Cyt bc1
(b) ETS complex-II (ii) Cyt a,a3 and 2 copper centres 
(c) ETS complex-III (iii) NADH dehydrogenase
(d) ETS complex-IV (iv) Ubiquinone and FADH2  dehydrogenase

Choose the correct answer from the options given below:

(a) (b) (c) (d)
1. (ii) (i) (iv) (iii)
2. (iv) (iii) (ii) (i)
3. (iii) (ii) (i) (iv)
4. (iii) (iv) (i) (ii)
Subtopic:  ETS |
 85%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

advertisementadvertisement

Identify the cytochrome which acts as a mobile carrier for the transfer of electrons between complex III and IV?

1. Cytochrome a  2. Cytochrome a3 
3. Cytochrome b c 4. Cytochrome c
Subtopic:  ETS |
 78%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

Substrate-level phosphorylation accounts for approximately what percentage of the ATP formed by the reactions of glycolysis?
1. 0%
2. 2%
3. 10% 
4. 100%
Subtopic:  Glycolysis | Glycolysis Regulation |
 74%
Please attempt this question first.
Hints

A: In aerobic respiration presence of O2 is necessary.
R: O2 in aerobic respiration plays only one role i.e. terminal acceptor of the electron.
In the following questions, a statement of assertion (A) is followed by a statement of the reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
3. If Assertion is a true statement but the Reason is false.
4. If both Assertion and Reason are false statements.
Subtopic:  Aerobic Respiration | ETS:2 | ETS:1 |
 72%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital

advertisementadvertisement

The oxygen consumed during cellular respiration is involved directly in which process or event?
1. glycolysis
2. accepting electrons at the end of the electron transport chain
3. the citric acid cycle
4. the oxidation of pyruvate to acetyl CoA
 
Subtopic:  ETS:1 |
 87%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.