Week 3

Question 1

Some energy for ATP resynthesis comes from the what?

Answer 1

anerobic splitting of a phosphate from PCr

Question 2

PCr donate ….. to …… to form …….

Answer 2

Pi (Inorganic phosphate)
ADP
ATP

Question 3

PCr catalyzed by what enzyme

Answer 3

creatine kinase

Question 4

As PCr levels decline……?

Answer 4

ability to regenerate ATP is reduced

Question 5

The 3 phases of the glycolysis system

Answer 5

1. Investment phase
2. Cleavage phase
3. Energy harvest phase

Question 6

The cori cycle removes lactate and does what with it?

Answer 6

uses it to replenish glycogen stores depleted from intense physical activity

Question 7

4 main glycolysis points

Answer 7

1. Break down of sugars
   
   2. Glucose ( a six carbon sugar) is split into two molecules of a three-carbon sugar
   3. Anaerobic, can occur in the presence of 02
   4. Yields 2 x ATP, 2x pyruvic acid and 2x NADH

Question 8

Important points of the oxidative system

Answer 8

1. Yields 1 ATP, 3 NADH and 1 FADH2
   
   2. For every glucose molecule, the cycle is completed twice
   3. Generate H+ atoms via acetyl-CoA breakdown

Question 9

3 phases of the electron transport chain

Answer 9

1. Oxidation reduction reactions
   
   2. Creation of hydrogen ion gradient
2. Phosphorylation of ADP

Question 10

Important points of the electron transport chain

Answer 10

1. ATP produced as H+ moves via gradient through a channel and ATP synthase
2. Typically yields 32 ATP