Chapter 16: Glycolysis (Test 2)

Question 1

Which form of glucose is the most stable?

Answer 1

• Glucose with all -OH in equatorial form

- β- D-Glucose

Question 2

What is the general outline for glycolysis

Answer 2

• 1 glucose makes 2 pyruvate to make 2 ATP

Question 3

What traps glucose in the cell?

Answer 3

• Hexokinase

Question 4

The net rxn for glycolysis

Answer 4

• Glucose + 2 Pi + 2 ADP + 2 NAD+ —> 2 pyruvate + 2 ATP + 2 NADH + 2 H+ + 2 H2O

Question 5

Why does NAD+ need to be around?

Answer 5

• To accept electrons to form NADH

Question 6

What are the 3 pathways for pyruvate?

Know slide pathways

Answer 6

• Crebs cycle to form CO2

- Other 2 are for fermentation: ethanol or lactate

Question 7

What do hexokinases require as a co-factor?

Answer 7

• Mg2+ or Mn2+

Question 8

What are fermentations?

Answer 8

• A means of oxidizing NADH
• ATP generating pathways in which electrons are removed from one organic compound and passed to another organic compound

Question 9

What is the net rxn for lactate fermentation?

Answer 9

• Glucose + 2 Pi + 2 ADP —> 2 lactate + 2 ATP + 2 H2O

Question 10

What 2 sugars are converted into glycolytic intermediates?

Answer 10

• Fructose

- Galactose