Exit Exam For Exercise Science

Front 1

What is the first system for ATP synthesis?

Back 1

Phosphocreatine

Front 2

How many ATP does one PCr make?

Back 2

1

Front 3

What are the benefits of ATP-Pcr system?

Back 3

simplest and most rapid
no oxygen required
faster breakdown=faster contraction
fastest ATP production
highest power output
doesn't produce lactate

Front 4

What are the drawbacks of the ATP-PCr system?

Back 4

only lasts for 3-8s
limited supply
1:1 ratio for ATP

Front 5

When does Glycolysis begin?

Back 5

When PCr decreases

Front 6

What does glycolysis use for energy and how much ATP does it produce?

Back 6

glycogen- 3 ATP
glucose-2 ATP (because need ! more ATP in the process of going from glucose to pyruvate)

Front 7

what are the benefits of glycolysis?

Back 7

Makes more ATP than PCr
lasts ~ 1 minute
anaerobic (glucose)
glycogen is converted to pyruvate and sent to krebs cycle

Front 8

What are the drawbacks of glycolysis?

Back 8

acidosis-lactic acid build up
anaerobic-pyruvate converted to lactic acid (glucose)

Front 9

What is an activity for glycolysis?

Back 9

400-800m dash

Front 10

What are the 3 stages of oxidative metabolism?

Back 10

1) generates acetyl CoA
2)oxidate Acetyl CoA
3) ETC

Front 11

What types of fuel does glycolysis use?

Back 11

CHO
fats (makes more ATP, but needs more oxygen)
proteins (last choice)

Front 12

What begins the Krebs cycle?

Back 12

Pyruvate becomes Acetyl CoA

Front 13

What is the metabolic pathway that produces ATP?

Back 13

Electron TRansport Chain

Front 14

How many ATP does glycolysis make?

Back 14

glucose=30
heart=32
muscle=32

Front 15

What are the drawbacks of glycolysis?

Back 15

very slow to start
needs oxygen
creates free radical oxygen

Front 16

What are the benefits ot glycolysis?

Back 16

lasts for greater than 2 minutes
unlimited ATP production

Front 17

beta oxidation

Back 17

FFA breaks off and each chain of 16 carbons goes through the cycle and 8 Acetyl CoA are formed which makes 106 usable ATP, but requires more oxygen than CHO and Proteins

Front 18

What is an activity for glycolysis?

Back 18

1-2 mile run

Front 19

What are the muscular benefits when you have a 12 week running program?

Back 19

-change from IIx to IIa fibers
-increased number and size of mitochondria
-increased activity of oxidative enzymes and NADH shuttles

Front 20

What are the metabolism adaptations that occur with a 12 week running program?

Back 20

-increase in liver and muscle glycogen to make ATP more readily available
-increase in fat usage for fuel
-Lowers RER

Front 21

What does training do to your lactate threshold?

Back 21

-increases lactate threshold
-able to exercise at a greater intensity before onset because oxidative kicks in quicker and the threshold happens at a higher intensity so can maintain a faster speed without having lactate build up

Front 22

What CV benefits does a 12 week running program have?

Back 22

-increase in capillary density, which leads to better utilization of oxygen
-HR decreases
-Blood flow increases
-blood volume increases
-greater volume of plasma

Front 23

Respiratory benefits of 12 week running program

Back 23

-VO2 increase by up to 30%
-decreased RER