Module 1.4 Cellular Respiration

Question 1

● A process that uses oxygen to help break down food molecules such as sugar
● Energy stored in the bonds of the food molecules is transferred to ATP.

Answer 1

Cellular respiration

Question 2

As energy is transferred to the cells, the matter from the food molecules is released as

Answer 2

carbon dioxide and water.

Question 3

types of respiration

Answer 3

aerobic
fermentation

Question 4

CELLULAR RESPIRATION
anaerobic process products:
- animals
- yeasts

aerobic process products
- plants

Answer 4

Animate: Lactic acid
Yeast: ethanol + CO2

PLANTS AEROBIC: CO2 +H2O

Question 5

Stages of Cellular Respiration (3)

Answer 5

1. glycolysis
2. Citric acid cycle
3. oxidative phosphorylaton (Electron Transport and Chemiosmosis)

Question 6

Location of
1. glycolysis
2. Citric acid cycle
3. oxidative phosphorylaton

Answer 6

1. Glycolysis - cytoplasm
2. Citric Acid Cycle - matrix of mitochondrion
3. Oxidative Phosphorylation - inner membrane or cristae of the mitochondrion

Question 7

ATP is produced by

Answer 7

substrate-level phosphorylation

Question 8

NAD+ is _________ to NADH by electrons released from the _______ of glucose.

Answer 8

reduced,
oxidation

Question 9

Glycolysis (11)

Answer 9

1. Glucose
2. Glucose-6-phosphate
3. Fructose-6-phosphate
4. Fructose-1,6-bisphosphate
   5-6. Dihydroxyacetonephosphate (DHAP) ->
   Glyceraldehyde-3-phosphate (G3P)
5. 1,3-Bisphosphogylcerate
6. 3-Phosphoglycerate
7. 2-Phosphoglycerate
8. phosphoenolpyruvate
9. pyruvate

Question 10

Glycolysis enzyme

Answer 10

1. Hexokinase (ADP)
2. Phosphoglucoseisomerase
3. phosphofructokinase (ADP)
4. Aldolase
5. Triose phosphate isomerase
6. Glyceraldehyde phosphate dehydrogenase (2 NADH)
7. Phosphoglycerate kinase (2 ATP)
8. Phosphoglycerpmutase
9. Enolase
10. Pyruvate kinase (2 ATP)

Question 11

Each pyruvic acid loses ____ forming (2) acetic acid.

Acetic acid is oxidizes while (2) NAD+ reduces resulting to the formation of (2) ______.

Each acetic acid is attached to _________ forming acetyl CoA.

Answer 11

CO2
NADH
coenzyme A (CoA)

Question 12

Citric Acid Cycle or also known as (2)

Answer 12

The tricarboxylic acid cycle or The Krebs cycle

Question 13

Citric Acid Cycle designed by

Answer 13

Hans Adolf Krebs (1973)

Question 14

Citric acid cycle

Answer 14

1. Citrate
2. cis-Aconitate + water
3. D-isocitrate
4. alpha-ketoglutarate + NADH + CO2
5. succinyl CoA + NADH +CO2
6. Succinate + CoA + GTP
7. Fumarate + FADH2
8. Malate
9. Oxaloacetate + NADH

Question 15

process of ATP synthase

Answer 15

chemiosmosis

Question 16

in etc, where is the electron from?

Answer 16

NADH is oxidized to NAD+
FADH2 to FAD

Question 17

final electron acceptor

Answer 17

oxygen

Question 18

oxygen binds to ?

Answer 18

2H+ to produce H2O