Cellular Respiration

Question 1

Cellular respiration begins with a pathway called?

Answer 1

Glycolysis

Question 2

What is cellular Respiration

Answer 2

A process in which the mitochondria cell of plants, animals, act, break down carbohydrates and other energy

Question 3

What would be the problem if cellular respiration only took one step?

Answer 3

You would only make two ATP - you usually make 36-38.

Question 4

Where does glycolysis take place?

Answer 4

Cytoplasm

Question 5

Where do the Krebs cycle and electron transport take place?

Answer 5

Matrix of the mitochondria and cristea of the mitochondria.

Question 6

What is glycolysis?

Answer 6

The splitting of glucose molecules to produce 2 pyruvate.

Question 7

What is NADH?

Answer 7

It is an electron carrier.

Question 8

What is the function of NADH in glycolysis?

Answer 8

It is an electron carrier- it goes to the last stage of cellular respiration, the ETC.

Question 9

What happens to each of the 3 carbon atoms in pyruvic acid when it is broken down?

Answer 9

They turn into a 2-Carbon acetyl coA molecule.

Question 10

How is 6-Carbon citric acid produced?

Answer 10

2 carbon molecule (acetyl caA) joins a 4-Carbon starting molecule to make a 6-Carbon intermediate.

Question 11

When electrons join NAD and FAD during the Krebs cycle, what do they form?

Answer 11

NADH and FADH2

Question 12

What does the electron transport chain use the high-energy electrons that are passed down the chain?

Answer 12

To reduce oxygen to water and to produce the majority of ATP made in cellular respiration.

Question 13

What causes the Hydrogen+ ions in the intermembrane space to move through the channels in the membrane and out into the matrix?

Answer 13

The ATP synthase

Question 14

Stages of Aerobic Respiration?

Answer 14

Glycolysis, Krebs Cycle Prep, Krebs Cycle, Electron Transport Chain.

Question 15

What is aerobic cellular respiration?

Answer 15

Organisms that live in oxic condition require oxygen to produce ATP

Question 16

What us Anaerobic Cellular Respiration?

Answer 16

Organisms that live in anoxic conditions do not need oxygen to produce ATP

Question 17

What us Fermentation?

Answer 17

An anaerobic process. Yeast and bacteria that causes milk to go sour does this.

Question 18

What energy investments are made in glycolysis?

Answer 18

Initial e energy investment where 2 ATP are added.
Energy payoff where 4 ATP is produced.
Overall leading to a net worth of 2 ATP

Question 19

If there is no oxygen present what will pyruvate do?

What if there is oxygen.

Answer 19

No oxygen= fermentation

Oxygen= Krebs Cycle

Question 20

Where does the Krebs Prep Cycle occur?

Answer 20

Mitochondria

Question 21

List the Krebs Prep Cycle.

Answer 21

3-Pyruvate
Co2 2-Carbon
2-Carbon acetyl coA

Question 22

Where does the Krebs Cycle occur?

Answer 22

The matrix of the mitochondria

Question 23

Two main purposes of ETC are, and where does it occur:

Answer 23

1. to reduce oxygen to water (gains electrons)
2. to produce the majority of ATP made in CR
   It occurs in the Cristae

Question 24

What is the final electron acceptor in the ETC?

Answer 24

Oxygen

Question 25

Maximum ATP yeild?

Answer 25

2
2        1,2          4,6
2                       6
                         2
6                       18    
2                        4                   TOTAL: 36 or 38

Question 26

Types of fermentation.

Answer 26

Lactate and Ethanol

Question 27

Fermentation includes:

Answer 27

Glycolysis

1-2 reactions that oxidize NADH to NAD+ by reducing pyruvate

Question 28

What is the formula for lactate fermentation?

Answer 28

Glucose-glycolysis-pyruvate-lactate

Question 29

Ethanol Fermentation does?

Answer 29

Converts pyruvate to ethanol and carbon dioxide

Question 30

What is the formula for Ethanol fermentation?

Answer 30

Glucose-glycolysis-pyruvate-two carbon-ethanol

Question 31

How does glycolysis get going?

Answer 31

Add 2 ATP

Question 32

What is the function of NADH in glycolysis?

Answer 32

It accepts electrons