Question

How are slow twitch fibers and fast twitch fibers different?

A. Fast twitch fibers contain a high amount of my globe
B. Fast twitch fibers contain a high amount of glycolytic enzymes
C. Slow twitch fibers contain a low amount of capillaries
D. slow twithe fibers contain a low amount of mitochondria

Answer 1

People have two general types of skeletal muscle fibers: slow-twitch (type I) and fast-twitch(type II). Slow-twitch muscles help enable long-endurance feats such as distance running, whilefast-twitch muscles fatigue fasterbut are used in powerful bursts of movements like sprinting.