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Biology Revision Year 2 > Respiration > Flashcards

Respiration Flashcards

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1
Q

what are the carriers in the ETC called?

A

cytochromes

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2
Q

how many molecules of ATP are made per molecule of glucose? (ETC)

A

38

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3
Q

how many ATP are made in glycolysis?

A

4 (2 net)

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4
Q

what does each molecule of pyruvate turn into in the link reaction?

A

acetyl CoA

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5
Q

what product is formed in muscle cells in anaerobic respiration?

A

lactic acid

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6
Q

what phases of respiration involve oxidative phosphorylation?

A

ETC

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7
Q

how many ATPs are made in the link reaction?

A

0

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8
Q

what is the role of O2 in the ETC?

A

O2 is an electron acceptor

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9
Q

how many molecules of ATP are made per molecule of NADH2? (ETC)

A

3

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10
Q

where does the link reaction take place?

A

the mitochondrial matrix

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11
Q

how many molecules of ATP are made per molecule of FADH2? (ETC)

A

2

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12
Q

how many molecules of NADH2 are made per Krebs cycle?

A

6

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13
Q

how many molecules of ATP are made per Krebs?

A

2

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14
Q

how many molecules of NADH2 are made per link reaction cycle?

A

2

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15
Q

where does the Krebs cycle take place?

A

matrix

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16
Q

how many Krebs are there per molecule of glucose?

A

2

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17
Q

which phases of respiration involve substrate level phosphorylation?

A

Glycolysis, Krebs, Link

18
Q

what does the 6 carbon glucose molecule turn into in glycolysis?

A

2 x 3 carbon pyruvate

19
Q

how many molecules of ATP are yielded per molecule of glucose in anaerobic respiration?

A

2

20
Q

where is the electron transport chain?

A

cristae

21
Q

what product is formed in plant cells in anaerobic respiration?

A

ethanol

22
Q

how many molecules of FADH2 are made per Krebs cycle?

A

2

23
Q

where does glycolysis take place?

A

in the CYTOPLASM

24
Q

how many molecules of NADH2 are made in glycolysis?

A

2

25
Q

where does glycolysis take place?

A

in the CYTOPLASM of the cell

26
Q

is glycolysis aerobic or anaerobic?

A

anaerobic

27
Q

what is the yield of glycolysis?

A

4 ATP (2 nett) 2 NADH

28
Q

how does the pyruvate go into the mitochondrion for the link?

A

active transport

29
Q

what reaction turns glucose to GP and hexose biphosphate?

A

phosphorylation (ATP goes to ADP)

30
Q

what reaction turns TP pyruvic acid?

A

oxidation ( loss of hydrogen to make NAD into NADH)

31
Q

where does the link reaction take place?

A

the mitochondrial matrix

32
Q

what are the products of the link reaction?

A

2 CO2 and 2 NADH per glucose

33
Q

describe the link reaction

A

pyruvate is dehydrogenised and decarboxylated to form acetate, acetate combines with coA to form actetyl coA

34
Q

what is dehydrogynation?

A

loss of hydrogen (H+)

35
Q

what is decarboxylation?

A

loss of carbon atom

36
Q

where does the krebs cycle happen?

A

mitochondrial matrix

37
Q

how is the 6 carbon compound formed?

A

acetyl coA (2 carbon) combines with a 4C compound

38
Q

draw out krebs and check against notes

A

(insert picture)

39
Q

what is substrate level phosphorylation?

A

creation of ATP without ATP synthase, phosphate is added from another molecule

40
Q

what are the products of the krebs cycle? (per cycle)

A

3 x NADH, 1 x ATP, 1 x FADH, 2 x CO2

41
Q

where does oxidative phosphorylation take place?

A

cristae

42
Q

describe oxidative phosphorylation

A

e- and H+ are released from reduced coenzymes (eg) NADH), electrons flow along the ETC in a series of redox reactions, electrons release energy that pumps H+ into the intermembrane space, H+ flow down the proton gradient through ATP Synthase which phosphorylate ADP to make ATP. O2 is the final electron accepter and makes water.

Biology Revision Year 2 (13 decks)

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