Glycolysis & citric acid cycle

Question 1

Most common catabolic pathway

Answer 1

Embden-Meyerhof pathway

Question 2

What are the (net) products of the Glycolysis?

Answer 2

2 pyruvate, 2 ATP, 2 NADH, 2H+

Question 3

How many steps does the Glycolysis include?

Answer 3

10

Question 4

How many important enzymes are there in the Glycolysis?

Answer 4

3

Question 5

In which steps does the enzymes work (in the glycolysis)

Answer 5

Step 1 (irreversible) , 3 (committed step –> full glycolysis) & 10 (irreversible)

Question 6

Give a short explanation; Fermentation

Answer 6

Anaerobic (no oxygen) breakdown of glucose

Question 7

What is the step after glycolysis?

Answer 7

Pyruvate oxidation

Question 8

Where does the pyruvate oxidation take place?

Answer 8

In the Mitochondria

Question 9

What is the Pyruvate oxidation?

Answer 9

The formation of Acetyl CoA from Pyruvate

Question 10

What is an Activated carrier molecule?

Answer 10

Acetyl CoA

Question 11

What are the products of Pyruvate oxidation?

Answer 11

1 CO2 molecule (waste product), 1 NADH molecule, Acetyl CoA

Question 12

Acetyl CoA can also be formed from (not Pyruvate) …?

Answer 12

Fatty Acids

Question 13

How does fatty acids form Acetyl CoA?

Answer 13

By beta oxidation

Question 14

What is the next step after the Pyruvate oxidation?

Answer 14

The Citrus acid cycle

Question 15

Where does the citrus acid cycle take place?

Answer 15

In the mitochondria matrix

Question 16

There are two types of regulations in the Citrus Acid cycle - what are they called?

Answer 16

Allosteric modification & covalent modification

Question 17

What makes the allosteric modification active?

Answer 17

High amount of ADP & pyruvate

Question 18

What makes the allosteric modification inactive?

Answer 18

ATP, acetyl CoA & NADH