The muscular system consists of the ________
A) skeletal muscles
B) muscles of the heart
C) muscles in the walls of hollow organs
D) skeletal muscles and the muscles of the heart
E) muscles of the heart and those in the walls of the hollow organs
A
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During concentric contractions of skeletal muscle, the I band and H zone shorten but the A band stays the same.
Answer the following statement true (T) or false (F)
Alexander Fleming first wrote about penicillin
Indicate whether the statement is true or false
Explain why carbohydrates are preferred over proteins and lipids as an energy source
A) Carbohydrates yield more energy than proteins and lipids. B) Carbohydrates travel easier through the blood than proteins and lipids. C) Carbohydrates can be stored and proteins and lipids cannot. D) Proteins and lipids are rarer in food than carbohydrates. E) Proteins and lipids are more important as structural components of cells and tissues.
The reaction sucrose + water ? glucose + fructose is an example of a(n) ________
A) double replacement reaction B) synthesis reaction C) decomposition reaction D) neutralization reaction E) anabolic reaction