Chp6 Cellular Respiration

Question 1

What is cellular respiration

Answer 1

process of extracting energy from sugar/food

Question 2

What is the overall reaction for cellular respiration

Answer 2

C6H12O6+ 6 o2 —-> 6 Co2 + 6 H2o + approx 32 ATP + Heat

Question 3

Where in the cell does glycolysis take place

Answer 3

cytoplasm,

Question 4

What are the reactants and products of glycolysis?

Answer 4

Glucose + 2ATP —-> 2ATP NET, 2NADH, 3 molecules of pyruvic acid

Question 5

What happens to pyruvate at the end of glycolysis?

Answer 5

The pyruvic acid still holds most of the energy of glucose, and that energy is harvested in the second stage of cellular respiration, the citric acid cycle.

Question 6

What are the reactants and products of the connecting step (pyruvate oxidation step/step between glycolysis and citric acid cycle)?

Answer 6

The pyruvic acid still holds most of the energy of glucose, and that energy is harvested in the second stage of cellular respiration, the citric acid cycle.

Question 7

What is the name of the 2 carbon molecule that enters the citric acid cycle

Answer 7

Acetyl CoA is a reactant in the citric acid cycle

Question 8

What are themajorproducts of the citric cycle? Where does it take place in the cell?

Answer 8

Matrix of mitochondria.

2 Co2, ATP, 3 NADH-, FADH2-

Question 9

What is the electron transport chain (ETC) made of and why is it important? Where is it located?

Answer 9

Series of 4 protein complexes. creates an electrochemical gradient that leads to the creation of ATP.
occurs in mitochondria,

Question 10

What is substrate level phosphorylation?

Answer 10

Produces ATP during the citric acid cycle

Question 11

Which are the two molecules that carry energy to the electron transport chain from the Krebs cycle?

Answer 11

FADH2 and NADH

Question 12

Where is ATP synthase located in the mitochondria?

Answer 12

the Mitochondria

Question 13

What is the final electron acceptor at the end of ETC?

Answer 13

Oxygen accepts the electrons after it is pass through the Electron transport chain.

Question 14

What is chemiosmosis

Answer 14

pumping of protons through special channels in the membranes of mitochondria.

Question 15

What stage of cellular respiration produces most ATP?

Answer 15

the kerbs cycle produces the CO2 that you breath out. produces the most energy, 34 ATP molecules)

Question 16

What is fermentation?

Answer 16

Used by Cells in times of oxygen shortage and by humans to produce foods and beverages

Question 17

In cellular respiration, most ATP is produced directly as a result of…

Answer 17

the movement of hydrogen ions across the inner mitochondrial membrane

Question 18

Oxidation is..

Answer 18

the loss of electrons; reduction is the gain of electrons.

Question 19

Which of the following statements is a correct distinction between autotrophs and heterotrophs?

Answer 19

Only autotrophs can live on nutrients that are entirely inorganic.

Question 20

Cells can harvest the most chemical energy from which of the following?

Answer 20

a glucose molecule

Question 21

Sports physiologists at an Olympic training center want to monitor athletes to determine at what point their muscles are functioning anaerobically. They can do this by checking for a buildup of

Answer 21

lactic acid.

Question 22

Which of the following is the correct sequence of stages in cellular respiration?

Answer 22

glycolysis, citric acid cycle, electron transport

Question 23

A product of glycolysis is ______

Answer 23

pyruvic acid

Question 24

Which part of cellular respiration produces the most NADH

Answer 24

citric acid cycle

Question 25

In cellular respiration, most ATP is produced directly as a result of ______.

Answer 25

the movement of hydrogen ions across the inner mitochondrial membrane

Question 26

The final electron acceptor of aerobic respiration is ______.

Answer 26

oxygen

Question 27

Which of the following statements is true?

Answer 27

Oxidation is the loss of electrons; reduction is the gain of electrons.