1. An advantage of the large fiber diameter of fast glycolytic muscle is a. it's correlated with its large volume, which

[answerhappygod]

1. An advantage of the large fiber diameter of fast
glycolytic muscle is
a. it's correlated with its large volume, which in turn means it
can hold more oxygen, and generate ATP aerobically.
b. it implies more cross-sectional area and the fiber can therefore
hold more mitochondria, which means it can generate more ATP to
power contraction.
c. it has less surface area relative to its volume, so it
depolarizes more rapidly, since current has less distance to
spread.
d. it has more myofibrils per unit length, which means it can form
more cross-bridges, and generate more power (force).
e. none of these.
2. Which fibers will have a rich blood supply and a high
myoglobin content?
a. slow oxidative fibers (Type I)
b. fast oxidative fibers (Type IIa)
c. fast glycolytic fibers (Type IIx)
d. fast and slow glycolytic fibers
e, fast and slow oxidative fibers