cellular respiration

Question 1

cellular respiration

Answer 1

is the energy from food molecules in cells

Question 2

Glucose is broken down to

Answer 2

pyruvate in the cytoplasm of cells during glycolysis

Question 3

Intermediates of glycolysis are

Answer 3

Phosphate by ATP in energy investment stage

Question 4

ATP is generated in glycolysis

Answer 4

by the addition of inorganic phosphate

ATP+PI to ADP in the energy pay-off phase

Question 5

Phosphofructokinase (PFK)

Answer 5

is an enzyme that catalyses

Question 6

PFK is the key regulatory enzyme for

Answer 6

glycolysis

Question 7

citric acid cycle occurs in

Answer 7

matrix of the mitochondria

Question 8

when oxygen is present pyruvate is broken down to

Answer 8

acetyl group

Question 9

An acetyl group combines with

Answer 9

coenzyme A to be transferred to the citric acid cycle acetyl coenzyme

Question 10

Acetyl coenzyme A combines with

Answer 10

oxaloacetate to form citrate.

Question 11

oxaloacetate is regenerated by

Answer 11

enzyme-mediated reactions in the citric acid cycle.

Question 12

Some ATP is generated in the

Answer 12

citric acid cycle

Question 13

carbon dioxide is released from the

Answer 13

citric acid cycle

Question 14

Dehydrogenase removes

Answer 14

hydrogen and electrons from intermediates in the citric acid cycle

Question 15

hydrogen and electrons are passed to coenzyme

Answer 15

NAD and FAD to produce NADH and FADH

Question 16

NADH and FADH release hydrogen and high energy electrons to the

Answer 16

electron transport chain

Question 17

high energy electrons are used to pump hydrogen ions across the

Answer 17

mitochondrial membrane

Question 18

returning the flow of hydrogen ions through the inner mitochondrial membrane synthesizes ATP, using the membrane….

Answer 18

protein synthesis

Question 19

most ATP is generated form the

Answer 19

electron transport chain

Question 20

The final electron acceptor is oxygen, which combines with

Answer 20

hydrogen ion and electrons to form water.

Question 21

in the absence of oxygen , pyruvate from glycolysis and then follows

Answer 21

fermentation pathway

Question 22

glucose, alternative respiratory substrate includes

Answer 22

starch, glycogen, other sugars, amino acids and fats