C2

Question 1

What is the formula of Aerobic respiration

Answer 1

C6H12O6 (s) + 6O2(g) + 36ADP + 36Pi → 6CO2(g) + 6H2O(l) + 36ATP + heat

Question 2

What are the four main steps of Aerobic respiratin

Answer 2

1. Glycolysis
2. Linking reaction
3. Krebs cycle
4. ETC

Question 3

Whats the purpose Glycolysis

Answer 3

Main purpose is to split glucose into pyruvate

Question 4

What are the two reactions that happen in Glycolysis

Answer 4

1. 2 ATP added to glucose which splits it into two G3P molecules
2. NAD+ is added to the G3P which turn into Pyruvate

Question 4

What are the final products of glycolysis?

Answer 4

• Pyruvate
• 2 ATP
• NADH
• all of this is multiplied by 2

Question 5

Is oxygen required in glycolysis?

Answer 5

No

Question 6

What is the main purpose of the linking reaction

Answer 6

It makes it so that pyruvat ecan enter the matrix but in order to do that it must be modified into Acetyl CoA

Question 7

What are the two reactions in the linking reaction

Answer 7

1. Pyruvate + NAD+ → Acetyl (2 carbon compound) + CO2 + NADH
2. Acetyl + CoA → Acetyl Coenzyme A (goes to krebs cycle)

• Occurs twice

Question 7

Does the linking reaction require O2

Answer 7

yes, CO2 is released as by-product

Question 8

What is the main purpose of the Kreb cycle?

Answer 8

• It uses Acetyl CoA to make NADH and FADH2 which are high energy molecules

Question 9

What reaction occurs twice in the kreb cycle?

Answer 9

Acetyl CoA + 3 NAD+ + FAD+ + ADP → 3NADH + FADH2 + ATP + 2CO2

(occurs twice and requires oxygen)

Question 10

Describe the ETC

Answer 10

• NADH and FADH2 energize electrons in the first intermembrane protien
• It then gets passed through a series of carrieris until it reaches the last protien
• Electron releases energy and hydrogen atoms as it gets passed. this causes build up of hydrogen

Question 11

What happens at the end of the ETC

Answer 11

• O2 binds with the products which creates H2O as a by-product
• step requires oxygen
• Chemiosmosis occurs which reduces ADP into ATP

Question 12

How ATP are produced by the end

Answer 12

36-38

Question 13

Is glucose oxidized or reduced?

Answer 13

Oxidized

Question 14

Is NAD+ oxidized or reduced?

Answer 14

Reduced

Question 15

Is Pyruvate oxidized or reduced?

Answer 15

Oxidized

Question 16

Is FAD oxidized or reduced?

Answer 16

Reduced

Question 17

What is the forumla for ethanol in anaerobic respiration?

Answer 17

C6H12O6 + 2ADP + 2Pi → 2C2H5OH + 2CO2 + 2ATP

Question 17

Are the 6 glucose molecules in the kreb cycle oxidized or reduced

Answer 17

All 6 glucose have been oxidized to CO2

Question 18

What is the forumla for lactic acid in anaerobic respiration?

Answer 18

C6H12O6 (s) + 2ADP + 2Pi → 2C3H6O3 + 2ATP

Question 19

Is NADH a reducing or oxidizing agent?

Answer 19

Reducing agent

Question 20

What are the two main stages of anaerobic resperation

Answer 20

1. Glycolysis
2. Fermentation

• Final wastes of fermentation: CO2, Ethanol and Lactic Acid

Question 21

Describe Alcohol fermentation

Answer 21

• NADH produced in glycolysis pass their hydrogen to acetaldeyde
• It then recycles NAD+ and produces 2 ATP
• Waste products: CO2 and ethonal

Question 22

Describe Acetalhyde

Answer 22

• CO2 removed from pyruvate by pyruvate decarboxylase(enzyme)
• It then makes ethanol

Question 23

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