Muscle Fibres.

Question 1

List the Structural Characteristics of Slow Twitch Muscle Fibres.

Answer 1

Deep Red Colour.
Small Diameter.
High Mitochondria.
High Myoglobin.
Small Motor Unit Size.
Low PC Stores.
Low ATP-ase Activity.

Question 2

List the Functional Characteristics of Slow Twitch Muscle Fibres.

Answer 2

Adapted for Slow Rhythmic Contractions.
Low Intensity.
Long Duration - Fatigue occurs Slowly.
Consume Oxygen Slowly.
Burns Glucose.

Question 3

Which Sports people are most likely to Benefit from Slow Twitch Fibres?

Answer 3

Marathon Runner.
Endurance Sports.
Cycler.

Question 4

List the Structural Characteristics of Fast Twitch Muscle Fibres.

Answer 4

Pale Colour.
Large Diameter.
Low Mitochondria.
Low Myoglobin.
Large Motor Unit Size.
High PC Stores.
High ATP-ase Activity.

Question 5

List the Functional Characteristics of Slow Twitch Muscle Fibres.

Answer 5

Adapted for Powerful Actions.
High Intensity.
Low Duration - Fatigue occurs Quickly.
Consume Oxygen Quickly.
Burns Fat.

Question 6

List the 2 Types of Fast Twitch Fibres.

Answer 6

Fast Glycolytic.
Fast Oxidative Glycolytic.

Question 7

Which Sportspeople are most likely to Benefit from Slow Twitch Fibres?

Answer 7

Short Duration Sports.
Pole Vaults.
Sprinters.

Question 8

Where is the Sarcoplasmic Reticulum Located?

Answer 8

Around the Muscle Fibre.
Calcium Inside.