chapter 6

Question 1

what are the cell’s two major energy- transforming activities

Answer 1

1. extract potential energy
2. extract and transfer the chemical energy

Question 2

how much stored ATP do we have

Answer 2

enough to power 2-3 seconds of maximal exercise

Question 3

what does ADP combine with to create ATP

Answer 3

Phosphocreatine and ADP combine to produce ATP and creatine

Question 4

how many more times is PCR stored than ATP

Answer 4

4-6 times more

Question 5

how long does it take PCR to reach its max energy yield

Answer 5

approx. 10 seconds

Question 6

what is a drawback from the greatness of PCR

Answer 6

there isn’t an unlimited supply of PCR so although it is quick energy it has a limited capacity

Question 7

two forms of carbohydrate breakdown

Answer 7

1. anaerobic (rapid) glycolysis: two atp produced, glycolytic enzymes hexokinase, pyruvate kinase, and phosphfructokinase example is glucose->2 pyruvate
2. aerobic (slow) glycolysis: citric acid cycle, two atp produced

Question 8

how many ATP can a glucose molecule create if there is enough oxygen for the process

Answer 8

2 from glycolysis, 2 from citric acid cycle, and 28 from electron transport chain = 32

Question 9

where does aerobic activity take place

Answer 9

inside the mitochondria

Question 10

how many carbons in pyruvate

Answer 10

3

Question 11

complete breakdown of a single glycerol molecule synthesizes _____ ATP molecules

Answer 11

19

Question 12

three products of the CAC

Answer 12

electrons, ATP, carbon dioxide

Question 13

how much TG is stored in the body

Answer 13

100 000 kcal