Select the statement that best describes rigor mortis. 

A student picks up a pencil in her right hand, a 5 pound weight in her left hand, and abducts both arms, holding the objects out to her sides. What allows each side of her body to hold up these objects of different weights? 

What does the graph below represent?  Source: McGraw Hill Figure 9.17

Which term describes the ability of a muscle to do work? 

What molecule is required for a muscle cell to perform aerobic respiration? 

Which is true about resting membrane potential of skeletal muscle cells?

Which is NOT a characteristic of skeletal muscle cells? 

What muscle energy source quickly recharges ATP by donating a phosphate? 

What creates the striations visible under a microscope in relaxed skeletal and cardiac muscles?

What does myoglobin in a muscle fiber bind to?