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Flashcards in TCA Cycle Deck (17):
1

Instead of the original De Na De Na A Fa Na model learnt during A levels, what is the new and more accurate model for the TCA cycle?

Na De Na De GA Fa Na

2

What is the name of the starting molecule put into the TCA cycle, coming from the Link Reaction and how many carbon atoms does it have?

Acetyl Co-enzyme A
2

3

How many molecules of NADH are formed during the TCA cycle?

3

4

How many molecules of FADH are formed during the TCA cycle?

1

5

What is FAD formed from and what is the more commonly known name for this molecule?

Riboflavin
Vitamin B2

6

What can a deficiency of the molecule that forms FAD, lead to?

Lesions of the mucous membranes

7

Where does the TCA cycle chain of reactions take place?

Matrix of the mitochondria

8

What type of molecule is acetate (i.e. ketone, alcohol, etc.)?

Carboxylic Acid

9

Which vitamin does coenzyme A contain?

Vitamin B5 - pantothenic acid

10

What type of molecule is oxaloacetate?

Keto acid

11

What type of reaction is the first step in the TCA cycle? (Oxaloacetate (4C) + Acetyl (2C))

Condensation Reaction

12

Name the three large protein complexes that make up the respiratory chain.

NADH-Q reductase
Cytochrome reductase
Cytochrome oxidase

13

Name the two 'electron shuttles'.

Coenzyme Q (aka. Ubiquinone)
Cytochrome c

14

How do cyanide and carbon monoxide act?

They act to inhibit the final step of oxygen combining with hydrogen

15

Which membrane is the protein gradient set up along?

Inner mitochondrial membrane

16

How many molecules of ATP result from the oxidation of one molecule of NADH?

3

17

How many molecules of ATP result from the oxidation of one molecule of FADH2?

2