Author Question: Muscle fibers differ from typical cells in that muscle fibers A) lack a plasma membrane. B) have ... (Read 79 times)

nmorano1 · **on:** Feb 28, 2019

Muscle fibers differ from typical cells in that muscle fibers
A) lack a plasma membrane.
B) have many nuclei.
C) are very small.
D) lack mitochondria.
E) have large gaps in the cell membrane.

Question 2

Which of the following best describes the term sarcomere?
A) protein that accounts for elasticity of resting muscle
B) repeating unit of striated myofibrils
C) storage site for calcium ions
D) thin filaments are anchored here
E) largely made of myosin molecules