cellular respiration

Question 1

where does glycolysis occur?

Answer 1

cytosol

Question 2

where does the citric acid cycle take place?

Answer 2

mitochondrial matrix

Question 3

where does the electron transport chain occur?

Answer 3

INNER mitochondrial membrane

Question 4

cellular respiration is what kind of reaction?

Answer 4

combustion.

Question 5

what is substrate level phosphorylation?

Answer 5

an enzyme transfers phosphate groups from ADP in order to form ATP

Question 6

what is oxidative phosphorylation?

Answer 6

production of ATP using energy from the electron transport chain

Question 7

does glycolysis require oxygen to occur?

Answer 7

NO. It’s anaerobic. it can be with or without but it’s not required.

Question 8

where does glycolysis occur?

Answer 8

cytoplasm

Question 9

what’s the purpose of glycolysis?

Answer 9

produce ATP and provide pyruvate for the citric acid cycle

Question 10

what does hexokinase do in glycolysis

Answer 10

it converts glucose into glucose 6 phosphate to prevent the molecule from leaving the cell

Question 11

what does phosphofructokinase (PFK) do in glycolysis?

Answer 11

it converts fructose 6 phosphate to fructose 1,6 bi-phosphate. it is an IRREVERSIBLE STEP

Question 12

when ATP is high, PFK will cause what?

Answer 12

it will prevent glycolysis from occuring

Question 13

when ATP is low, PFK will cause what?

Answer 13

low PFK will be used in abundance to produce more ATP

Question 14

what is the net production of ATP in glycolysis?

Answer 14

2

Question 15

NADH, NAD+, H2O, Pyruvate, and ATP… which is not a net product of glycolysis?

Answer 15

NAD+

Question 16

which enzyme is used in the rate limiting step for glycolysis?

Answer 16

PFK

Question 17

where does pyruvate decarboxylation occur?

Answer 17

mitochondrial matrix

Question 18

is pyruvate decarboxylation aerobic or anaerobic?

Answer 18

aerobic. requires oxygen

Question 19

what’s the purpose of pyruvate decarboxylation?

Answer 19

synthesis of acetyl co-a

Question 20

where is the citric acid cycle occuring?

Answer 20

mitochondrial matrix

Question 21

is the citric acid cycle aerobic or anaerobic?

Answer 21

aerobic, requires oxygen!

Question 22

what is the purpose of the citric acid cycle?

Answer 22

generate NADH and FADH2. these are electron carriers

Question 23

are NADH and FADH2 electron shuttles?

Answer 23

YES!

Question 24

do prokaryotes have a mitochondria?

Answer 24

NO

Question 25

During the citric acid cycle, acetyl-CoA combines with oxaloacetate to form ______??

Answer 25

Citrate

Question 26

True or False: At the end of the citric acid cycle, oxaloacetate is reformed so the cycle can repeat.

Answer 26

TRUE

Question 27

Are NADH and FADH2 oxidized at the end of the ETC?

Answer 27

Yes

Question 28

True or False: As electrons pass thru the proteins and into the mitochondrial matrix, protons (H+) are pumped across the inner mitochondrial membrane and into the intermembrane space.

Answer 28

True

Question 29

what is the final electron acceptor in the ETC? Oxygen or H2O?

Answer 29

Oxygen

Question 30

what is the final product in the ETC? Oxygen or H2O?

Answer 30

H2O

Question 31

ETC produces ATP via what kind of phosphorylation?

Answer 31

oxidative

Question 32

where does the ETC occur?

Answer 32

inner mitochondrial membrane

Question 33

is the ETC aerobic or anaerobic?

Answer 33

aerobic

Question 34

what is the purpose of the ETC?

Answer 34

to generate ATP

Question 35

where does fermentation occur?

Answer 35

cytoplasm of the cell

Question 36

True or False: Fermentation regenerates NAD+ to allow glycolysis to continue occurring.

Answer 36

True

Question 37

What is the function of the Cori Cycle?

Answer 37

Convert lactate back into glucose in the presence of oxygen