Question

1-Removing pyruvate and redirecting it toward biosynthesis results in how many ATPs from one glucose?

a)24 ATPs

b)38 ATPs

c)8 ATPs

d)15 ATPs

2-Can a cell satisfy all of its metabolic needs from one molecule of glucose? Explain how if yes; explain why if no.

Answer 1

1. option c is correct

Removing the pyruvate and redirecting it for another purpose . So now we get 2 ATP from substrate level phosphorylation , 2 NADH which will go for oxidative phosphorylation and will form 6 ATP (2 ATP from each NADH ). So total of 8 ATP we get from one glucose .

2. No

From 1 glucose molecule , we get 36/38 ATP molecules while a cell uses millions of ATP molecules per second for meeting various demands of cellular processes . There are lot of pathways which occur inside a cell which require ATP . So these few ATP are very less to satisfy all the need of a cell.