17 - Glycolysis

Question 1

Overview of glycolyis

Answer 1

Glucose split into 3C sugars, which are oxidized and their remaining atoms rearranged to form two molecules of pyruvate.

Question 2

Investment phase

Answer 2

Spends energy (2ATP)

Question 3

Payoff phase

Answer 3

Atp is produced by substrate level phosphorylation and NAD+ is reduced to NADH by electrons released from the oxidation of glucose.

Question 4

Net energy yield of glycolysis?

Answer 4

2ATP
2 NADH
2 pyruvate

Question 5

Anaerobic or aerobic?

Answer 5

Either - will occur whether or not o2 is present.

Question 6

If O2 is present in gylcolysis, what is possible?

Answer 6

TCA cycle can happen and the chemical energy stored in pyruvate and NADH can be extracted!

Question 7

Where does glycolysis occur?

Answer 7

In the cytoplasm

Question 8

ATP (unstable) hyrolysized into:

Answer 8

ADP + Pi (more stable)

Question 9

ATP/ADP stucture

Answer 9

Adenine, 5C sugar, 3Pi

Question 10

Why is ATP considered HIGH energy?

Answer 10

PO43- very negative, cleave one P, release a lot of energy because the neg forces were repelling

Question 11

NADH/NAD+ is a(N)

Answer 11

Electron carrier

Question 12

Glycolysis is what kind of phosphorylation?

Answer 12

Substrate level