video Quizzes

Question 1

An atom that gained electrons in a chemical reaction was

Answer 1

Reduction

Question 2

What molecule accepts electrons during oxidation of glucose?

Answer 2

Oxygen (o2)

Question 3

The energy from exergonic hydrolysis of ____________ is used to pump sodium and potassium ions across the plasma membrane

Answer 3

ATP

Question 4

What are the products of glycolysis?

Answer 4

2 pyruvate+2 ATP+2 NADH

Question 5

What enzyme catalyzes the sixth step of glycolysis to produce NADH and 1,3-bisphosphoglycerate?

Answer 5

Glyceraldehyde-3 phosphate

Question 6

Where does the citric acid cycle occur?

Answer 6

Mitochondrial matrix

Question 7

What enzyme catalyzes the oxidation of pyruvate and reduction of NAD+ in the mitochondrial matrix to produce acetyl-CoA, CO2, and NADH?

Answer 7

Pyruvate dehydrogenase

Question 8

What molecule is the oxidizing agent when pyruvate is oxidized by the pyruvate dehyrogenase complex?

Answer 8

Nicotinamide adenine dinucleotide (NADH)

Question 9

How many CO2 molecules are produced from the oxidation of a single glucose molecule?

Answer 9

6

Question 10

During aerobic respiration of glucose what are the products resulting from two rounds of the citric acid cycle?

Answer 10

4CO_2+2ATP+6NADH+2FADH_2