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IMMS > Krebs cycle > Flashcards

Krebs cycle Flashcards

1
Q

How do you remember the names of the substances in the krebs cycle

A

Can I keep selling substances for money officer

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2
Q

What is the carbon order for the krebs cycle

A

6
6
5
4
4
4
4
4

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3
Q

When is NADH lost

A

2x at the places where carbon are lost

1 at last step

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4
Q

When FADH2 lost

A

Succinate - fumarate

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5
Q

When is CO2 produced

A

Where carbons are lost

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6
Q

How do you remember the names of the enzymes in the krebs cycle

A

So at disco, devil sipped down five drinks

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7
Q

What does S stand for in the enzyme mnemonic

A

synthases

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8
Q

What does d stand for in the enzyme mnemonic

A

Dehydrogenase

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9
Q

What does a stand for in the enzyme mnemonic

A

aconitase

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10
Q

What does f stand for in the enzyme mnemonic

A

fumarase

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11
Q

How many ATP does 1 citric acid cycle produce

A

12

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12
Q

How many NADH does 1 citric acid cycle produce

A

3

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13
Q

How many ATP are produced from NADH in the citric acid cycle

A

3 = 9

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14
Q

How many FADH2 are produced from the citric acid cycle

A

1

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15
Q

How many ATP are produced from FADH2 produced in the citric acid cycle

A

2

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16
Q

How many GTP are produced in the citric acid cycle

A

1

17
Q

How many ATP are produced from GTP in the citric acid cycle

A

1

18
Q

Where does the krebs cycle take place

A

Matrix of mitochondria

19
Q

What are the regulators of the Krebs cycle

A

Metabolites

Citrate

Calcium

20
Q

How do metabolites regulate the TCA cycle

A

Products of the cycle provide negative feedback on the enzymes which catalyse it

NADH

21
Q

How does citrate regulate TCA

A

Inhibits phosphofructokinase - key enzyme in glycolysis

Reduces the rate of productive of pyruvate therefore acetly-CoA

22
Q

How does calcium regulate the TCA cycle

A

Accelerates TCA cycle by stimulating the link reaction

IMMS (16 decks)

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