Question

_______________________ are stripped from the intermediate organic molecules of the Krebs Cycle.

carbon and hydrogen atoms

oxygen and electrons

H+ and electrons

ATP and NAD

In aerobic respiration NADH and FADH2 are oxidized back into NAD⁺ and FAD by

glycolysis.

the Krebs Cycle.

the electron transport chain.

fermentation.

Two ATP are used to add two phosphate groups to glucose in the

Krebs Cycle.

electron transport chain.

glycolysis.

bridge step.

ATP and ________________ is/are the product(s) from the Krebs Cycle.

NADH

FADH2 and NADH

NADH and carbon dioxide

NADH, FADH2 and carbon dioxide

NADH, FADH2, carbon dioxide and oxygen

Answer 1

Ans. 1. Option A is the correct answer .

EXPLANATIONS:- The carbon and hydrogen atom are stripped from the intermediate organic molecules of the kreb cycle. Kreb cycle is also known as citric acid cycle. The carbon and hydrogen are stripped in form of carbon dioxide and water.

Ans. 2. Option C is the correct answer.

EXPLANATIONS:- in aerobic respiration, the FADH2 and NADPH are oxidised back to FAD and NAD+ by the electrons transport chain. This process occurs in the inner Mitochondrial membrane. It is the last step of the aerobic respiration processes.

Ans.3. Option C is the correct answer .

EXPLANATIONS:- Two ATP are used in the glycolysis process for the addition of two phosphate molecules to the glucose. This is the first step of both aerobic and anaerobic respiration. It occurs in cytoplasm. It produces 2 pyruvate.

Ans.4. Option D is the correct answer.

EXPLANATIONS:- NADH, FADH2 and carbon dioxide are the producer of the kreb cycle. It occurs in the mitochondria. It is the third step of the aerobic respiration process.