Energy systems

Question 1

which of the following equation summarises the conversion of glucose to lactic acid
(multiple choice)

Answer 1

C …. glucose > pyruvate > lactic acid
ADP + pi > ATP. NADH > NAD

Question 2

how much glucose is broken down per min when the oxygen concentration is 1% ?

(graph multiple choice)

Answer 2

A 2.5units

Question 3

which line in the table identifies the properties of slow twitch muscle fibres

Answer 3

B many mitochondria, high contractions and storage fuel is fats

Question 4

energy investment phase

Answer 4

(2) ATP are broken down this then results in phosphorylation of glucose and intermediates

Question 5

energy pay off phase

Answer 5

there is a net gain of (2) ATP

Question 6

what pyruvate produces and conditions of what it produces

Answer 6

acetyl coenzyme A - when oxygen is present

Question 7

where is slow twitch generation of ATP?

Answer 7

from aerobic respiration

Question 8

what is fast twitch major storage fuel ?

Answer 8

glycogen

Question 9

name the substance which builds up muscle cells as they become fatigued

Answer 9

lactate

Question 10

slow twitch sport and reason to justify your choice of muscle fibre

Answer 10

cycling- they have many mitochondria and a large blood supply and a high concentration of myoglobin and can contract over a relatively long period

Question 11

slow twitch fast twitch graph ratio….

Answer 11

3:1

Question 12

slow twitch fast twitch graph ratio…

Answer 12

3:1

Question 13

why the 10000 metre runner requires a high percentage of slow twitch muscle fibres…

Answer 13

they sustain contractions for a longer period of time

Question 14

slow twitch and fast twitch graph describe

Answer 14

as the distance of event increases athletes have more slow twitch muscle fibres and less fast twitch muscle fibres

Question 15

differences between slow twitch and fast twitch (2)

Answer 15

slow twitch have more mitochondria than fast twitch and slow twitch have larger blood supply than fast twitch