Bioenergetics 3

Question 1

T/F: Sprinters have really good PDH systems

Answer 1

F: sprinters have really good LDH systems

Question 2

T/F: endurance runners have really good LDH systems

Answer 2

F: endurance runners have really good PDH systems

Question 3

the body readily needs a pool of _____ or else _____ stalls

Answer 3

NAD, Glycolysis

Question 4

which process makes NAD that can then be converted into NADH

Answer 4

Lactate Dehydrogenase

Question 5

what occurs when converting pyruvic acid to lactic acid?

Answer 5

consuming NADH to produce NAD - maintaining redox balance

Question 6

Glucose stage is cycling _____ to _____

Answer 6

NADH to NAD

Question 7

LDH stage is cycling _____ to ______

Answer 7

NAD to NADH

Question 8

the more pyruvic acid that is made the more _____ ______ is made

Answer 8

lactic acid

Question 9

_____ has a negative charge compared to ______ because it gave up a _______

Answer 9

Lactate, lactic acid, hydrogen

Question 10

PDH is an ________ enzyme

Answer 10

allosteric

Question 11

_______ is what feeds into the krebs cycle

Answer 11

Acetyl CoA

Question 12

humans have ________ _____ twitch

Answer 12

Type 2x, fast

Question 13

fast twitch fibres are also called ________ fibres

Answer 13

anaerobic

Question 14

after glycolysis 2 _______ enters the _______ (PDH rxn)

Answer 14

pyruvate, mitochondria

Question 15

whenever CO2 is lost in a rxn ____ is being lost

Answer 15

carbon

Question 16

when Acetyl CoA enters krebs cycle it becomes _____ then it ends the cycle as _______

Answer 16

citrate, oxaloacetate

Question 17

Acetyl CoA + Oxaloacetate is _______

Answer 17

citrate synthase

Question 18

what happens when “burning fat” as a result of exercise

Answer 18

we loose fat mass - fat leaves our body through our breath

Question 19

T/F: when we exercise we have low amounts of Krebs cycle activity and all CO2 coming off leaves the body

Answer 19

F: when we exercise we have a lot of Krebs cycle activity and all CO2 coming off leaves the body

Question 20

glycolysis can be ______ or _______ as it does not involve ____

Answer 20

aerobic, anaerobic, O2

Question 21

beta oxidation provides acetyl CoA for ______

Answer 21

Krebs Cycle

Question 22

_______ determine if glycolysis is aerobic or anaerobic

Answer 22

enzymes (LDH vs PDH)