Glycolysis Payoff Phase

Q. Identify the reactions of glycolysis, where ATP is used up.

1. Conversion of glucose to glucose-6-phosphate
2. Conversion of 1, 3-bisphosphoglyceric acid to 3-phospho glyceric acid
3. Conversion of fructose-6-phosphate to fructose-1, 6-bisphosphate
4. Both A $\&$ C

Q. How many NADH + $H^{+}$ molecules are formed if four glucose molecules enter glycolysis?

1. 2
2. 4
3. 8
4. 16

Q.

The proper sequence of stages in glycolysis is

1. Glucose priming, cleavage and rearrangement, oxidation, ATP generation

2. Cleavage and rearrangement, glucose priming, ATP generation, oxidation

3. Glucose priming, oxidation, cleavage and rearrangement, ATP generation

4. ATP generation, oxidation, glucose priming, cleavage and rearrangement

Q. Conversion of phosphoenol pyruvic acid to pyruvic acid and ADP to ATP are examples of _______.

1. Photophosphorylation
2. Oxidative phosphorylation
3. Photoelectric phosphorylation
4. Substrate level phosphorylation

Q. Which one of the following does not involve isomerisation in glycolysis pathway?

1. Conversion of glucose-6-phosphate to fructose-6-phosphate
2. Conversion of glycerol aldehyde-3-phosphate to dihydroxyacetone phosphate
3. Conversion of 3-phosphoglyceric acid to 2-phosphoglyceric acid
4. Conversion of 2-phosphoglyceric acid to phospho enol pyruvic acid

Q.

Identify A & B in this condensed scheme of glycolysis

1. (A) DHAP, (B) 2-Phosphoglyceric acid
2. (A) Glucose-6-phosphate, (B) Pyruvic acid
3. (A) 1, 3-bisphosphoglyceric acid, (B) Pyruvic acid
4. (A) Fructose-1, 6-bisphosphate, (B) PEP
5. (A) 2-Phosphoglycerate, (B) Pyruvic acid

Q. In glycolysis, the dehydration reaction is _____ .

1. 2-Phosphoglycerate forming phosphoenolpyruvate by removal of water
2. Phosphoenolpyruvate forming pyruvate by phosphorylation of ADP
3. Glyceraldehyde-3-phosphate forming 1, 3-bisphosphoglycerate
4. Glucose forming glucose-6-phosphate by removal of water

Q. Substrate level phosphorylation occurs during conversion of

1. Glyceraldehyde-3-phosphate into 1, 3 bisphosphoglyceric acid
2. Fructose -6-phosphate into fructose-1, 6-bisphosphate
3. Phosphoenolpyruvate into pyruvic acid
4. PGA into phosphoglycerate

Q. During oxidation in glycolysis, electrons are removed from

1. $\text{ATP}$
2. $\text{glyceraldehyde-3-phosphate}$
3. ${\text{NAD}}^{+}$
4. $\text{molecular oxygen}$

Q. In EMP pathway

1. GTP is formed
2. $FAD{H}_2$ is formed
3. Substrate level phosphorylation occurs
4. None of these

Q. Phosphoenol pyruvate, an intermediate in glycolysis, is also an important molecule in which of the following pathways/cycles?

1. Kerbs cycle
2. C${}_3$ cycle
3. C${}_4$ cycle
4. None of the above

Q. Match the following molecules released when the products (in the right column) are formed during glycolysis:

$\begin{array}{cc}\text{i. ATP}& \text{1. Triose bisphosphate}\\ \text{ii. NADH}& \text{2. Phosphoenolpyruvate}\\ \text{iii.}{H}_{2}O& \text{3. Triose phosphate}\end{array}$

1. i-2, ii-3, iii-1
2. i-3, ii-1, iii-2
3. i-1, ii-3, iii-2
4. i-1, ii-2, iii-3

Q.

In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice as
Assertion: Conversion of 1, 3 biphosphoglycerate (BPGA) to 3-phospho-glyceric acid (PGA) is an energy-yielding step.
Reason: This energy is trapped in the form of ATP.

1. If both assertion and reason are true and reason is the correct explanation of assertion.

2. If both assertion and reason are true but reason is not the correct explanation of assertion.

3. If assertion is true but reason is false.

4. If both assertion and reason are false.