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BIO150 > Cellular respiration ( krebs cycle ) > Flashcards

Cellular respiration ( krebs cycle ) Flashcards

1
Q

a process that is named after hans kreb

A

kreb cycle

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2
Q

kreb cycle is also known as

A

citric acid cycle

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3
Q

where will this reaction will occur

A

in the matrix of mitochondria

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4
Q

name 3 process that occurs in kreb cycle

tip: ORD

A

oxidation, reduction, decarboxylation

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5
Q

what will enter the kreb cycle at the start of the reaction?

A

Acetyl CoA

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6
Q

a process that requires oxygen

A

kreb cycle

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7
Q

name the substance that is released at the end of the reaction

A

carbon dioxide

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8
Q

how many ATP is released per cycle?

A

1 ATP

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9
Q

name 3 substance that is produced in kreb cycle

tip: NFC

A

NADH, FADH2, CO2

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10
Q

how many NADH, FADH2 and CO2 are produced from 1 turn of the kreb cycle

A

3NADH, 1FADH2, 2CO2

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11
Q

how many times the cycle will turn for one glucose molecule?

A

it will turn twice

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12
Q

name 4 substance that is produced after two turns of the kreb cycle
tip: NFCA

A

NADH, FADH2, CO2, ATP

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13
Q

how many NADH will be produced at the end of the kreb cycle

A

6 NADH

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14
Q

how many FADH2 will be produced at the end of the kreb cycle

A

2 FADH2

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15
Q

how many CO2 will be produced at the end of the kreb cycle

A

4 CO2

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16
Q

how many ATP will be produced at the end of the kreb cycle

A

2 ATP

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17
Q

how many steps are there in krebs cycle

A

9 steps

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18
Q

(1) what is the first substance to enter the kreb cycle

A

Acetyl CoA ( 2C )

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19
Q

(1) ____ is stripped from Acetyl CoA and recycled

A

CoA

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20
Q

(1) 2C ( acetyl ) will ____ with 4C (oxaloacetate) to ___ 6C ( citrate )

A

combine, form

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21
Q

(1) substance that has 2C

A

acetyl

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22
Q

(1) substance that has 4C

A

oxaloacetate

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23
Q

(1) substance that has 6C

A

citrate

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24
Q

(1) acetyl and oxaloacetate will react/combine with each other to form _____

A

citrate

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25
Q

(1) state the enzyme involved in synthesis of citrate in step 1
tip: cs

A

citrate synthase

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26
Q

(2) _____ occurs in step 2

A

isomerisation

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27
Q

(2) citrate are _____ by the removal and addition of H2O molecule

A

rearranged

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28
Q

(2) how are the citrate rearranged in step 2

A

by the removal and addition of H2O molecule

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29
Q

(2) what is being added to rearrange citrate in step 2

A

a H2O molecule

30
Q

(2) what is the product of rearrangement of citrate

A

isocitrate

31
Q

(2) state the enzyme involved in the rearrangement of citrate in step 2
tip: a

32
Q

(3) step 3 involves _____ & ______ process

A

oxidation and decarboxylation

33
Q

(3) isocitrate will undergo ____ and lose ____ molecule in the form of CO2

A

oxidation, carbon

34
Q

(3) in what form will the isocitrate lose its carbon molecule

A

in the form of carbon dioxide

35
Q

(3) what is the result of oxidation of isocitrate in step 3

A

α-ketoglutarate

36
Q

(3) what will be reduced in step 3

37
Q

(3) what is the result of reduction of NAD+ in step 3

38
Q

(3) state the enzyme involved in the formation of α-ketoglutarate in step 3

A

isocitrate dehydrogenase

39
Q

(4) what process will happen in step 4

A

oxidation and decarboxylation

40
Q

(4) α-ketoglutarate will be _____ and lose ____

A

oxidised, CO2

41
Q

(4) the C from CO2 will ____ with Coenzyme to form Succinyl CoA

42
Q

(4) what will be combined with the CO2 from α-ketoglutarate in step 4

A

coenzyme A

43
Q

(4) what will be formed as the result of oxidation of α-ketoglutarate in step 4

A

Succinyl CoA

44
Q

(4) state the enzyme involved in the forming of succinyl CoA in step 4

A

α-ketoglutarate dehydrogenase

45
Q

(5) what process will happen in step 5

tip: slp

A

substrate level phosphorylation

46
Q

(5) CoA from Succinyl CoA will be ____ by Pi and ____ to GDP to form GTP

A

displaced, transferred

47
Q

(5) in step 5, CoA will be replaced by a _____ group

48
Q

(5) Pi from GTP is ____ ADP to produce ATP

A

transferred to

49
Q

(5) what is the result of the transfer of Pi to GDP

50
Q

(5) what is the result of the transfer of Pi to ADP

51
Q

(5) ATP, ADP, GTP. ADP

arrange these molecules according to its order

A

GDP, GTP, ADP, ATP

52
Q

(5) state the enzyme that is involved in the forming of succinate

A

succinyl coA synthethase

53
Q

(5) state the product of reaction in step 5 (succinyl coA -> _____)

54
Q

(6) state the process that occurs in step 6

55
Q

(6) succinate will undergo _____ to form fumarate

56
Q

(6) state the result of the oxidation of succinate in step 6

57
Q

(6) state the result of the transfer of 2H to FAD in step 6

58
Q

(6) state the enzyme involved in the oxidation of succinate

A

succinate dehydrogenase

59
Q

(7) state the process that occurs in step 7

A

hydration process

60
Q

(7) fumarate will be ____ to malate

61
Q

(7) how does malate in step 7 is formed

tip: the name of the process

A

through the addition of H2O

62
Q

(7) state the result of hydrolysis of fumarate in step 7

A

formation of malate

63
Q

(7) state the enzyme involved in the hydrolysis process of fumarate

64
Q

(8) state the name of the process in step 8

65
Q

(8) malate will be de____ to form oxaloacetate

66
Q

(8) state the result of oxidation of malate in step 8

A

formation of oxaloacetate

67
Q

(8) what process did malate go through to form oxaloacetate

A

deoxidation process

68
Q

(8) in the meantime, NAD+ will be ____ to NADH

69
Q

(8) state the result of reduction of NAD+ in step 8

70
Q

(8) state the enzyme involved in the deoxidation process of malate

A

malate dehydrogenase

71
Q

(9) oxaloacetate will be ____ to start the cycle once again

BIO150 (14 decks)

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