More physiology

Question 1

3 ways ATP is produced in the body

Answer 1

1) Creatine phosphate
2) Anaerobic respiration
3) Aerobic Respiration

Question 2

Resting muscles store ATP as -

Answer 2

Creatine phosphate

Question 3

what is the ratio of creatine phosphate to ATP stored in a muscle cdll?

Answer 3

3-6 x more creatine phosphate than ATP stored

Question 4

How does Creatine phosphate create ATP in muscle cells

Answer 4

-ATP stored as CP

when ATP used up in contraction CP is used to regenerate ATP so contraction can be sustained for longer

Question 5

How much longer can a muscle contraction be sustained when Creatine Phosphate is used to regenerate ATP?

Answer 5

15 secs

Question 6

What is Anaerobic Respiration

Answer 6

Without Oxygen
from Glucose
no fat burning

Question 7

What does Anaerobic Respiration produce

Answer 7

2 ATP

lactic acid

Question 8

What is Aerobic respiration

Answer 8

With Oxygen
from Glucose, fats, protein
fat burning

Question 9

What does Aerobic respiration produce

Answer 9

38 ATP

Question 10

Which is more efficient Aerobic or Anaerobic respiration?

Answer 10

Aerobic!

Question 11

Anaerobic provides enough energy for an extra —– of activity?

Answer 11

30-40 secs

Question 12

Aerobic respiration is needed for muscular activity lasting more than ______

Answer 12

a minute

Question 13

Two types of muscle fibres

Answer 13

Red & white

Question 14

Describe white muscle fibres

Answer 14

Less myoglobin = less oxygen to muscle
appear lighter (chicken breast)

Question 15

Describe red muscle fibres

Answer 15

Lots of myoglobin = greater blood supply
more Mitochondria
Appear darker - leg meat on chicken

Question 16

3 muscle twitch types

Answer 16

Slow twitch type 1
fast twitch type 2a
fast twitch type 2b

Question 17

What colour are slow twitch type 1 muscles?

Answer 17

Dark red

Question 18

What colour are fast twitch type 2a muscles

Answer 18

pink

Question 19

what colour are fast twitch type 2b muscle

Answer 19

white

Question 20

what type of respiration do slow twitch use?

Answer 20

Aerobic

Question 21

what type of respiration do fast twitch type 2b use

Answer 21

Anaerobic mainly

Question 22

what type of respiration do fast twitch type 2a use?

Answer 22

Aerobic

Question 23

Which are the most, least and medium powerful muscles?

Answer 23

Most powerful - fast twitch 2b
least powerful - slow twitch
medium powerful - fast twitch 2a

Question 24

Which twitch type muscles contract slowest, fastest and fast?

Answer 24

slow twitch - slowest
fast 2a - faster
fast 2b - fastest

Question 25

Which twitch types fatigue the most easily, medium and least?

Answer 25

Fast twitch 2b - fatigue quickly
fast twitch 2a - resist fatigue
slow twitch - longest duration

Question 26

what activities are the different muscle twitch types good for?

Answer 26

Slow twitch - endurance
fast twitch 2a - walking & sprinting
fast twitch 2b - power lifting

Question 27

Most skeletal muscle fibres are a _______ of muscle fibres

Answer 27

mixture

Question 28

proportions of muscle fibres vary depending on

Answer 28

the individual and their training

Question 29

exercise can cause muscle fibres to

Answer 29

change

Question 30

Endurance training converts _ to _

Answer 30

fast twitch type 2b to type 2a

Question 31

strength training causes what

Answer 31

Hypertrophy - increases size and strength of fast twitch type 2b fibres

Question 32

What effect does Creatine have on muscles

Answer 32

draws water into them making them look larger