oxidation of glucose

Question 1

What are the 2 step which carry out the oxidation of glucose? Where does it occur and what are the end products?

Answer 1

• The first is glycolysis which occurs in the cytoplams of the cell and is anaerobic. End product is pyruvic acid
• Second step occurs in mitochondrion. The Kreb’s cycle (Citric Acid ) takes Pyruvic Acid and completes its
  oxidation to CO2 .

Question 2

Where does the Kreb’s cycle occur in the mitochondria?

Answer 2

The matrix

Question 3

What is the intermediate of the oxidation of glucose?

Answer 3

NADH

Question 4

The reduction of oxygen to water uses the intermediate generated from
Glycolysis and the Kreb’s Cycle, NADH. This will produce

Answer 4

ATP

Question 5

Where does the reduction of oxygen occur in the mitochondria?

Answer 5

The cristae

Question 6

How is ATP generated?

Answer 6

By the creation of a H+ gradient between cristae or inner mitochondrial membrane (cristae) and the outer mitochondrial
membrane.

Question 7

 The TCA cycle (which is also known as the Krebs, or citric acid, cycle) plays a central
role in the

Answer 7

breakdown, or catabolism, of
organic fuel molecules.

Question 8

The TCA cycle is made up of numerous steps
catalyzed by different enzymes that produce

Answer 8

energy at several different stages