cellular respiration 2.2 Flashcards

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1
Q

what is glycolosys and where does it take place

A

the breakdown of glucose to pyruvate in the cytoplasm

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2
Q

what is the energy investment and net gain of glycolosis

A

2 atp invested
4 atp gained
net gain 2 atp

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3
Q

what is the next step after glycolosys if oxygen is avaliable

A

cutric acid cycle

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4
Q

what is puruvate broken down into

A

acetyle which jouns with coenzyme a to form acetyle co a

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5
Q

what does acetyle co a join with and what does it make

A

oxeloacitate to form citrate

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6
Q

what does the colitric acid cycle release

A

atp and carbon dioxide

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7
Q

where does the citric acud cycle occur

A

central matrix of mitochondria

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8
Q

what enzyme removes h ions and electrons

A

dehydrogenase

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9
Q

what is formed when nad joins with h ions and electrons

A

nadh

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10
Q

where are h ions and electrons passed onto by nadh

A

the electron transport chain

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11
Q

where does the etc take place

A

the inner membrane of the mitochondria

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12
Q

what is the etc

A

a series of carrier proteins attached to the inner mitochondrial membrane

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13
Q

how does the etc work

A

electrons are past allong the etc giving energy to allow the hydrogen ions to be pumped across the membrane

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14
Q

what is the enzyme h ions pass through to sinthesise atp

A

atp sinthase

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15
Q

what is the last exeptor of h ions and electrons

A

oxygen forming water

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16
Q

what happens after glycolosys in the absence of oxygen

A

fermentation takes place in the cytoplasm

17
Q

what is pyruvate converted into in animal cells

A

lactate

18
Q

what is pyruvate converted into in plant cells

A

ethanol and carbon dioxide

19
Q

is fermentation in animals reversable

A

yes

20
Q

is fermentation in plants reversable

A

no

21
Q

is there more or less atl produced during fermentation

A

much less

22
Q

what is atp used for

A

to transfer energy from cellular respiration to other cell processes which require energy

23
Q

how many atp are produced in the etc

A

36