Bioenergetics 2

Question 1

ATP is made __ _______

Answer 1

on demand

Question 2

what is the order of how the systems “kick in”

Answer 2

phosphocreatine, glycolysis, oxidative phosphorylation

Question 3

what system keeps our bodies going, and keeps us alive

Answer 3

oxidative phosphorylation

Question 4

______ store abundant PCr

Answer 4

muscles

Question 5

PCr system characteristics

Answer 5

• low inertia
• high power
• low capacity

Question 6

PCr reaction recycles __________________

Answer 6

ATP hydrolysis product ADP

Question 7

in PCr reaction, creatine kinease ____________

Answer 7

reshuffles the phosphates

Question 8

you can deplete your muscle cells of PCr in about ______

Answer 8

30 seconds

Question 9

T/F: PCr is for long bursts of low energy

Answer 9

F: PCr is for very short bursts of high intensity exercise

Question 10

ATPase reaction

Answer 10

ADP made in the rxn is what creatine kinease binds to, to make ATP

Question 11

fatigue you feel after high intensity exercise is lactic acid build up or PCr depletion

Answer 11

PCr depletion

Question 12

where do we make most of our energy

Answer 12

electron transport chain

Question 13

______ can use almost any fuel (______, _______, _______)

Answer 13

muscles, fats, carbs, proteins

Question 14

glycolysis has 2 phases

Answer 14

• energy investment stage

- energy generation phase

Question 15

if final product is pyruvate

Answer 15

• 8 steps

- aerobic glycolysis

Question 16

if final product is lactate

Answer 16

• 9 steps

- anaerobic glycolysis

Question 17

conversion of glucose to pyruvate is catalyzed by

Answer 17

lactate dehydrogenase (LDH)

Question 18

which is more efficient to start with - stored glycogen, or transported glucose

Answer 18

stored glycogen

Question 19

T/F: 1 glucose is split into 2 molecules

Answer 19

F: 1 fructose is split into 2 molecules

Question 20

the presence of KINEASE means

Answer 20

something is being phosphorylated