Muscles Short Answer 2

Question 1

Differentiate between Slow and Fast Muscle Fibers

Answer 1

Slow fibers (Type 1) are more efficiently at using oxygen for endurance activities while Fast Fibers (Type 2) are designed for quick burst of power and fatigue more quickly.

Question 2

Understand what occurs during muscle contractions at the molecular level

Answer 2

When muscle is stimulated, Calcium ions are released, blinding to troponin, which cause tropomyosin to move and expose blinding sites of actin. Myosin heads then attract, pulling the filament theory past each other, resulting in contraction.