Chapter 7

Question 1

Energy Metabolism

Answer 1

How body obtains & uses energy

from food

Question 2

Liver cells

Answer 2

most versatile & metabolically active(a lot of reactions and gluconeogenesis

Question 3

Anabolism (and requires what)

Answer 3

• building up of body compounds

- Requires energy (building reaction)

Question 4

Catabolism(releases what)

Answer 4

breaking down of body compounds

-Releases -energy (breakdown reaction

Question 5

Coupled Reactions

Answer 5

– Hydrolysis (breakdown) of ATP occurs at same time as reactions that will USE energy to build compounds

Question 6

What is ATP used for?

Answer 6

Body uses ATP to transfer the energy released during CATABOLIC reaction to power its anabolic reaction

Question 7

“Energy” to ATP

Answer 7

50%

Question 8

Coenzymes

Answer 8

• Organic – but not PROTEINS

- B vitamins can act as coenzymes

Question 9

Whats derived from CHo

Answer 9

glucose

Question 10

Whats derived from PRO

Answer 10

amino acids

Question 11

Whats derived from TG

Answer 11

glycerol and fatty acids

Question 12

Discuss pyruvate in general

Answer 12

• 3-carbon structure

- can be used to make glucose

Question 13

Discuss Acetyl CoA

Answer 13

• 2 carbon structure

- cannot be used to make glucose

Question 14

Where are the hydrogen atoms carried?

Answer 14

to the electron transport chain

Question 15

What is glucose splitting

Answer 15

glycolysis

Question 16

Can pyruvate be converted back to glucose?

Answer 16

yes

Question 17

Two Pyruvate Energy Need Options

Answer 17

• anaerobic

- aerobic

Question 18

Anaerobic

Answer 18

• pyruvate to lactate
• quick energy need
• makes quickly but doesn’t last long
  ex. 200-800m run

Question 19

Aerobic

Answer 19

slower energy needs

-pyruvate to acetyl COa

Question 20

Pyruvate to Lactate Effects

Answer 20

-hydrogen(which causes burning)

• acidity
• fatigue

Question 21

Cori Cycle

Answer 21

lactate taken to liver and reconverted into glucose

Question 22

Where does pyruvate enter and what’s removed?

Answer 22

• pyruvate enters mitochondria of cell

- carbon removed ……becomes carbon dioxide

Question 23

What makes acetyl Coa and is it undoable?

Answer 23

• 2 carbon compound

- irreversible

Question 24

Acetyl Coa’ options

Answer 24

1. synthesize fats when ATP is abundant

2. generate ATp through TCA cycle

Question 25

Any molecule that can make Acetyl COa can make…..

Answer 25

fat