Unit 3 Test

Question 1

First stage in cellular respiration

Answer 1

Glycolysis

Question 2

Second step in cellular respiration

Answer 2

Pyruvate oxiration

Question 3

Third step in cellular respiration

Answer 3

Krebs cycle

Question 4

4th step in cellular respiration

Answer 4

Electron transport chain

Question 5

What is the first stage in glycolysis

Answer 5

Energy investment

Question 6

Second stage in glycolysis

Answer 6

Energy payoff (energy won)

Question 7

How much atp is won in cellular respiration

Answer 7

36

Question 8

How much atp is invested in the first stage of glycolysis

Answer 8

2

Question 9

What does glycolysis make

Answer 9

Pyruvate, 2 ATP and 2 NADH

Question 10

What is Pyruvate oxidation

Answer 10

When Pyruvate is turned into a acetyl group by coenzyme A

Question 11

How many times does Pyruvate oxidation happen per glucose

Answer 11

Twice as glycolysis makes two pyruvate

Question 12

For each Pyruvate what is made in Pyruvate oxidation

Answer 12

1-Acetyl COA, 1NADH, and 1 CO2

Question 13

What is the Krebs cycle

Answer 13

Where acetyl COA is turned to multiple products

Question 14

What does the Krebs cycle make per acetyl-COA

Answer 14

3NADH, 1FADH2, 1GTP or 1ATP and 2CO2

Question 15

How many times does the kerb cycle happen

Answer 15

2 times

Question 16

What is the electron transport chain

Answer 16

Where the NADH and FADH made in the other stages are used to make more ATP

Question 17

How much ATP does FADH2 make each

Answer 17

1.5ATP

Question 18

How much ATP does NADH make each

Answer 18

About 2.5 ATP

Question 19

What is oxidation

Answer 19

Removing electrons

Question 20

What is reduction

Answer 20

Adding electrons

Question 21

what is gluconeogenisis

Answer 21

Production of glucose from non carb things

Question 22

DHAP

Answer 22

Happens in middle of glycolysis

Question 23

B-Oxidation

Answer 23

What helps Breakdown of fatty acids in the mitochondria

Question 24

Substrate level phosphorylation

Answer 24

Direct transfer of a phosphate groip from and high energy substrate

Question 25

Oxidative phosphorylation

Answer 25

Very effective and it uses chemiosmosis and etc

Question 26

What is chemiosmosis

Answer 26

It works by using a proton (H+) gradient to power the production of ATP

Question 27

When does Fermentation happen

Answer 27

Fermentation happens in anaerobic conditions

Question 28

Where does lactic acid fermentation happen

Answer 28

In the cells of muscle tissue

Question 29

What is made in mucsle fermentation

Answer 29

Lactic acid

Question 30

Pyruvate is converted to lactic acid due to what

Answer 30

The lack of oxygen

Question 31

What happens to the NADH made in fermentation

Answer 31

It gets turned back to NAD+ to continue glycolysis

Question 32

How much atp is made in fermentation

Answer 32

Two ATP

Question 33

Where does alcoholic fermentation happen

Answer 33

In yeast cells

Question 34

What are the final products in alcoholic fermentation

Answer 34

Alcohol and CO2

Question 35

Why can glycolysis happen but no other stage in fermentation

Answer 35

Glycolysis does not need oxygen

Question 36

What 3 things affect atp yield

Answer 36

1.NADH could be used for other things in the cell lowering atp yield
2. Depending on the starting molecule glycolysis could be skipped like if fats are used.
3.sometimes ubiquinone was skipped

Question 37

How do we know if glycolysis is affected

Answer 37

If glucose is too high as pyruvate is not being made

Question 38

How to know if Krebs cycle is affected

Answer 38

If NAD is too high as NADH is not being made

Question 39

How to know if etc is affected

Answer 39

If NADH is too high as NADH is not being used in the ETC

Question 40

Why is NADH called an electron shuttle bus

Answer 40

NADH shuttles electrons to the ETC to greate more energy

Question 41

Chemical equation for cellular respiration

Answer 41

C6H12O6+6O2~> 6CO2 + 6H2O+ 36 ATP