Question

10 true or false 1 point
slow-twitch fibers contain many mitochondria, are well supplied with blood vessels, and can make atp as they need it.
true
false
11 true or false 1 point
in the absence of atp, a contracted muscle cant relax.
true
false

Explanation:

1. For question 10: Slow-twitch muscle fibers are adapted for sustained aerobic activity. They have high mitochondrial density, abundant blood vessels for oxygen delivery, and produce ATP continuously via aerobic respiration as needed.
2. For question 11: ATP is required for the detachment of myosin heads from actin filaments, which is essential for muscle relaxation. Without ATP, the cross-bridges remain attached, preventing relaxation.

Answer:

1. True
2. True