Introduction, Energy, and Phosphagen System

Question 1

the phosphagen system is an ___ ___ of ATP resynthesis

Answer 1

immediate source

Question 2

PC + ADP ——-> (name enzyme and products)

Answer 2

enzyme: creatine kinase
products: ATP + C

Question 3

ADP + ADP ——> (name enzyme and products)

Answer 3

enzyme: adenylate kinase
products: ATP + AMP

Question 4

the phosphagen system reactions occur in the

Answer 4

sarcoplasm

Question 5

are the phosphagen system reactions aerobic or anaerobic

Answer 5

anaerobic

Question 6

how much ATP is stored within each kg of skeletal muscle

Answer 6

2.4 mmol

Question 7

ATP stored in muscle is used how quicly

Answer 7

several seconds

Question 8

CP concentration is how much higher than ATP

Answer 8

4-6x

Question 9

the CP reservoir is enough to power what

Answer 9

a sprint for 5-10 seconds

Question 10

comparison of max rate of energy transfer in phosphagen vs aerobic transfer

Answer 10

The maximum rate of energy transfer is 4-8 times that of aerobic transfer​

Question 11

examples where the phosphagen system is the primary producer of ATP

Answer 11

• 100 m sprint
• shot put
• clean and jerk
• short, explosive activities

Question 12

primary role of CHO

Answer 12

provide energy for cellular work

Question 13

what is the only macronutrient that can produce ATP anaerobically

Answer 13

CHO

Question 14

some CHO must be continually ____

Answer 14

degraded

Question 15

lipids burn in

Answer 15

a carbohydrate flame

Question 16

what must happen for strenuous exercise to continue

Answer 16

ATP must be continually resynthesized

Question 17

anaerobic glycolysis fuel mainly comes from ___ ___ ___ and results in ____ ____

Answer 17

stored muscle glycogen; lactate accumulation

Question 18

max power output of anaerobic glycolysis compared to ATP-PC

Answer 18

anaerobic = 45% power output of ATP-PC

Question 19

anaerobic glycolysis ___ ___ until o2 is available

Answer 19

buys time

Question 20

how is anaerobic glycolysis “reserve fuel”

Answer 20

• used for a long sprint at the end of a race
• longer than a sprint, but still intense, such as a 400 m sprint or 100 yard swim

Question 21

glycolysis aka

Answer 21

substrate level phosphorlyation

Question 22

the most rapidly accumulated and highest lactate levels are reached during

Answer 22

all out exercise that lasts 60-180 s

Question 23

aerobic glycolysis indicates…

Answer 23

the end product is pyruvate, not lactate

Question 24

the aerobic system primarily utilizes

Answer 24

CHO and fat

Question 25

aerobic system duration

Answer 25

> 3 min

Question 26

which energy system has the lowest max power output

Answer 26

aerobic

Question 27

which energy system has the highest max capacity

Answer 27

aerobic

Question 28

what happens in the first few minutes of exercise

Answer 28

o2 uptakes rises in an exponential fashion

Question 29

liver glycogen is esp important for

Answer 29

CNS function

Question 30

muscle glycogen is esp important for

Answer 30

powering exercise

Question 31

when does work capacity drop significantly

Answer 31

when muscle glycogen reserves are depleted