Cellular Respiration

Question 1

Where does glycolysis occur?

Answer 1

in the cytosol

Question 2

Where does the Krebs cycle occur?

Answer 2

in the matrix of the mitochondria

Question 3

Where does the Electron Transport Chain occur?

Answer 3

in the cristae of the mitochondria

Question 4

What factors affect the rate of respiration?

Answer 4

Temperature, Glucose availability, Oxygen concentration

Question 5

Define ATP

Answer 5

Universal currency of energy in a cell

Question 6

Define coenzymes

Answer 6

Molecules that are used as loaded or unloaded forms to move energy, protons and electrons between reactions in the cell in a cyclical manner

Question 7

Name the outputs of glycolysis in aerobic respiration

Answer 7

2 pyruvate, 2ATP and 2 NADH

Question 8

Name the waste product formed in animals from anaerobic respiration

Answer 8

Lactic acid (Lactate)

Question 9

Name the waste product formed in yeast and plants from anaerobic respiration

Answer 9

Ethanol and carbon dioxide

Question 10

Name the products of the Krebs cycle

Answer 10

Carbon dioxide and 8NADH, 2 FADH2 and 2 ATP.

Question 11

Name the products of the Electron Transport Chain

Answer 11

26-28 ATP. Water, 10 NAD+ 2 FAD+

Question 12

Name three features that indicate mitochondria’s endocymbiotic background

Answer 12

Own DNA genome
Bacterial ribosomal RNA
Double membrane

Question 13

How many ATP are made in aerobic respiration?

Answer 13

30-32 ATP

Question 14

How many ATP are made in anaerobic respiration?

Answer 14

2 ATP

Question 15

How many net ATP are made in glycolysis?

Answer 15

2 ATP

Question 16

How many net ATP are made in the Krebs cycle?

Answer 16

2 ATP

Question 17

How many net ATP are made in the Electron Transport Chain?

Answer 17

26-28ATP

Question 18

Write the word equation for aerobic cellular respiration

Answer 18

Glucose + Oxygen goes to Carbon dioxide + Water

Question 19

Write the chemical equation for aerobic cellular respiration

Answer 19

C6H12O6 + 6O2 goes to 6CO2 + 6H2O

Question 20

What is the crinkly part of the mitochondria called?

Answer 20

Cristae

Question 21

Describe the process of glycolysis

Answer 21

Glucose is broken into 2 Pyruvate creating 2ATP and 2NADH

Question 22

Describe the process of the Krebs cycle

Answer 22

Removal of H+ions from pyruvate creating loaded coenzymes and CO2 as a waste product

Question 23

Describe the process of the Electron Transport Chain

Answer 23

Loaded coenzymes molecules and H+ ions are used to create a concentration gradient that drives the synthesis of ATP. Oxygen is the final acceptor of the H+ ions and electrons forming water.

Question 24

Which part of aerobic respiration doesn’t actually require oxygen?

Answer 24

Glycolysis (this would therefore occur in both anaerobic and aerobic)