DAT Cellular Respiration Cheat Sheet Flashcards

1
Q

is glucose oxidized or reduced during cell respiration

A

oxidized

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2
Q

is cellular respiration ender or exergonic

A

exergonic

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3
Q

how is glucose oxidzed

A

via electron carriers, they deposit their electrons in ETC,

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4
Q

what happens to electrons after they arrive in ETC

A

fuel chemo osmosis, generate ATPwher

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5
Q

where in cell does glycolysis occur

A

cytoplasm

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6
Q

where does transformation of pyruvate into acetyl coa occur in cell

A

mitochondrial matrix

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7
Q

where does Kreb cycle occur

A

mitochondrial matrix

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8
Q

where does oxidative phosphorylation

A

mitochondrial inner membrane

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9
Q

what does glycolysis net and produce

A

net 2 atp, produces 2 pyruvate

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10
Q

Substrate Level Phosphorylation

A

ATP generated via direct transfer of a phosphate from another molecule.

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11
Q

what is The first “committed” step of glycolysis,

A

hexokinase

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12
Q

what does hexokinase do

A

transforms glucose to glucose-6-phosphate, consuming
1 ATP.

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13
Q

is phosphating glucose reversible or irreversable

A

irreversible

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14
Q

Phosphofructokinase (PFK):

A

Adds second phosphate,
committing molecule to glycolysis.

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15
Q

Aerobic process:

A

Oxygen required as final electron acceptor.

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16
Q

Overall Reaction: C6H12O6 + 6O2 —> 6CO2 + 6H2O + ATP

A

aerobic respiration

17
Q

Anaerobic Respiration

A

Regenerates oxidized NAD+ from NADH so glycolysis can
run.

18
Q

where does the pyruvate from glycolysis get shipped to

A

mitochondrial matrix

19
Q

what does the pyruvate get turned into

A

acetyl CoA

20
Q

what transforms pyruvate to acetyl CoA

A

Pyruvate Dehydrogenase Complex

21
Q

Where does the resulting acetyl CoA go to?

A

Enters CAC

22
Q

what is the acetyl CoA used to generate

A

oxaloacetate

23
Q

what does Each cycle of the cac produce

A

CO2, ATP, FADH2, and NADH.

24
Q

Oxidative phosphorylation:

A

Electrons passed from
electron carriers (NADH and FADH2) to other carrier
proteins in the inner mitochondrial membrane which
generates a H+ gradient, providing ATP synthase energy
via the proton motive force to produce ATP.

25
what is final e- acceptor in ETC
oxygen
26
what does ATP synthase use for the chemoosmosis
H+ gradient
27
steps of cellular respiration in order
glycolysis, transformation of pyruvate to acetyl CoA, Krebs cycle, oxidative phosphorylation
28
what kind of cells does alcohol fermentation occur in
plants, fungi, and yeast,
29
first step of alcohol fermentation
Pyruvate is converted to acetylaldehyde + CO2.
30
what is acetylaldehyde converted to in alcohol fermentation
ethanol
31
what also happens in the conversion to ethanol
oxidizes NADH to regenerate NAD+.
32
final e- acceptor in alcohol fermentaiton
Acetylaldehyde
33
what kinds of cells does lactic acid fermentation occur
Human muscle cells and other microorganisms.
34
what does pyruvate turn into in lactic acid fermentation
lactate
35
what and where can lactate be turned back into in lactic acid ferm
glucose, in the liver
36
what cells can store a lot of glycogen
skeletal muscles, liver