Honor Bio 7.4

Question 1

What are the three stages of cellular respiration in order?

Answer 1

1. Glycolysis → 2. Krebs Cycle → 3. Electron Transport Chain (ETC)

Question 2

Where does glycolysis occur?

Answer 2

Cytoplasm

Question 3

Where does the Krebs cycle occur?

Answer 3

Mitochondria

Question 4

Where does the etc occur?

Answer 4

Inner mitochondrion membrane

Question 5

What are the inputs of glycolysis?

Answer 5

Glucose, 2 ATP, 2 NAD+

Question 6

What are the outputs of glycolysis?

Answer 6

2 pyruvate, 4 ATP, 2 NADH

Question 7

What are the inputs of the Krebs cycle?

Answer 7

Acetyl-CoA, NAD⁺, FAD, ADP

Question 8

What are the outputs of the Krebs cycle?

Answer 8

CO₂, NADH, FADH₂, ATP

Question 9

What are the inputs of the electron transport chain (ETC)?

Answer 9

NADH, FADH₂, O₂

Question 10

What are the outputs of the electron transport chain (ETC)?

Answer 10

ATP, H2O

Question 11

What is the overall chemical equation for cellular respiration?

Answer 11

C6H12O6+6O2 -> 6CO2+6H2O+ATP

Question 12

What happens in your cells to generate ATP when oxygen is available?

Answer 12

Aerobic respiration occurs, producing around 34 per glucose using glycolysis, the Krebs cycle, and the ETC.

Question 13

What happens in your cells to generate ATP when oxygen is not available?

Answer 13

Anaerobic respiration (fermentation) occurs, producing only 2 ATP per glucose