cellular respiration Flashcards

1
Q

what are the steps of cellular respiration?

A

glycolysis, Krebs cycle, alcoholic fermentation, lactic acid fermentation, electron transport

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2
Q

is oxygen is present, Wich path will the pyruvate molecule go down

A

aerobic pathway (Krebs cycle)

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3
Q

if oxygen is not present Wich pathway will the pyruvate molecule go down

A

anaerobic pathway

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4
Q

what is the major goal of cellular repsiration

A

to make ATP molecules

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5
Q

what does gycolysis do

A

breaks down glucose into 2 ATP and 2 pyruvate molecules(pyruvic acid)

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6
Q

what is the first step of cellular respiration

A

glycolysis

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7
Q

what are the products and reactants of cellular respiration

A

reactants- glucose, o2
products- co2, H20

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8
Q

as you breath what molecules do u release

A

co2 and h20

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9
Q

what happens if ur body suddelny does a sprint and doesn’t have time to get oxygen to ur muscles

A

lactic acid fermentation

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10
Q

what is catabolism

A

breaking down molecules chemical bond energy to make atp

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11
Q

what type of reaction is cellular respiration

A

exogonic

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12
Q

what is it called when there is a gain of hydrogen atoms

A

reduction

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13
Q

what is it called when there’s a loss of hydrogen atoms

A

oxidation

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14
Q

what is glucose metabolized into

A

co2, h20

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15
Q

what molecule is transfered to o2 to make h20

A

hydrogen

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16
Q

at what speed is the energy in glucose REALEASED

A

slowly and subtley

17
Q

what percent of our food intake goes to heat energy

A

90%

18
Q

what role does ATP synthase have in cellular respiration

A

is fueled by hydrogen to make ATP

19
Q

how is ATP formed

A

when a phosphate is broken up the bond breaking releases atp

20
Q

what are the steps of aerobic pathway in order

A

glycolysis, Krebs cycle, electron transport

21
Q

what happens to the molecules in the krebs cycle when they are released

A

they go through the electron transport chain and get recharged to be reused

22
Q

where does gycolysis occur

A

cytoplasm

23
Q

where does the Krebs cycle occur

A

in the matrix inside the michtochondria

24
Q

where does lactic acid fermentation and alcoholic fermentation occur

A

cytoplasm

25
Q

what do products of the Krebs cycle drop off in the electron transport chain

A

hydrogen

26
Q

if the pyruvate molecule goes down the aerobic pathway what is it converted into for the krebs cycle

A

2 acetyl COA

27
Q

what are the products and reactants of lactic acid fermentation

A

reactants- 2 pyruvate , NADH
products- NAD+, 2 lactate

28
Q

what are the products and reactants of alcoholic fermentation

A

reactants-NADH, 2 pyruvate
products- co2, NAD+, 2 ethanol

29
Q

what does g3p do in cellular respiration

A

a step after glycolysis it helps split the glucose into pyruvate

30
Q

what are the three steps of gycolysis in order

A

investment- where 2 ATP come in
cleavage- where glucose gets split with G3P into pryruvate
energy harvest- where 2NAD+ get converted into 2 NADH and the 2ADP gets converted into 2 ATP

31
Q

can gylcolysis happen to any molecule?

A

yes

32
Q

what are the products and reactants of the Krebs cycle

A

reactants- nad+, FAD , ADP, acetyl COA,
products- Co2 {waste product} NADH, fadh2, atp, coA

33
Q

what is substrate phosphyorlation

A

when a phosphate attches to a molecule

34
Q

what is chemiosmotic phosphorylation

A

when a phosphate attached to ADP molecules making atp through it flowing through the membrane by chemiosmsis