1)How many ATP and NADH are generated (formed, not yielded) in the EMP (common g

Question

1)How many ATP and NADH are generated (formed, not yielded) in the EMP (common glycolysis) pathway?

A) none

B) 2 and 1 respectively

C) 2 and 4

D) 4 and 2

E) 2 and 2

2) How many pyruvate molecules are yielded from a mole of glucose passing through the EMP pathway?

A) 4

B) 2

C) 6.02 x 1023

D) 1.2 x 1024

E) 2.4 x 1024

3) During glycolysis, when isomerase moves the carbonyl on glucose-6-phosphate, what is the product ?

A) gluconate phosphate

B) glucose-3-phosphate

C) fructose-1,5-bisphosphate.

D) phosphoglyceraldehyde (PGALD)

E) none of the other answers

4) Cleavage of FBP by aldolase makes PGALD and dihydroxyacetone phosphate (DAP). These two molecules can inter-convert, but DAP is thermodynamically preferred. How then can the EMP pathway use PGALD?

A) an enzyme shifts the equilibrium to PGALD

B) the DAP is excreted as waste

C) the consumption of PGALD by downstream pathways pulls the reaction toward PGALD

D) DAP is used by the pentose phosphate pathway

E) none of the other answers

5) Which glycolysis pathway yields the most ATP?

A) EMP

B) PPP

C) ED

D) TCA

E) They all yield the same

6) Which glycolysis pathway(s) can use gluconate as an input of carbon?

A) EMP

B) ED

C) PPP

D) A and B

E) B and C

Explanation / Answer

1) In the EMP pathway 4 ATP s and 2 Neare generated.

2) 2 moles of pyruvate are produced from 1 mole of glucose. Hence the correct answer is option D.

3) During glycolysis, isomerase isomerizes glucose 6 phosphate to fructose 6 phosphate . Hence the correct answer is option E.

4) PGALD is interconverted back to DAP by isomerase.Thus it is used up.Hence the correct answer is option E.

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