Chemical events of Cellular Respiration

Question 1

Where does glycolysis take place in cells?

Answer 1

mitochondrion

Question 2

Glucose molecules commonly enter cells throught?

Answer 2

symports with sucrose

Question 3

How many carbon atoms does each pyruvate feed into the Krebs cycle?

Answer 3

2

Question 4

The fuel for Kreb’s cycle is?

Answer 4

GTP

Question 5

During which of the following phases of does substrate-level phosphorylation take place?

Answer 5

the electron transport chain

Question 6

Glycolysis results in the net gain of:

Answer 6

2 ATP

Question 7

Which of the following is not a requirement of glycolysis?

A. ATP
C. NAD+
B. Glucose
D. Oxygen

Answer 7

C. NAD+

Question 8

Considering only glycolysis and the conversion of pyruvate to acetyl CoA, how many NADH molecules will be produced from one glucose molecule?

Answer 8

2

Question 9

Before entering Krebs cycle, pyruvate is:

Answer 9

phosphorylated

Question 10

At the end of the Kreb’s cycle, where is most of the energy from the original glucose stored?

Answer 10

in NADH