Which of the following statements concerning the characteristics of different types of muscle fibers is incorrect?
a. the higher the ATPase activity, the faster the speed of contraction.
b. muscles that have high glycolytic capacity and large glycogen stores are more resistant to fatigue.
c. muscles with high ATP-synthesizing ability are more resistant to fatigue.
d. oxidative types of muscle fibers contain myoglobin.
e. muscle fibers containing large amounts of myoglobin have a dark red color in comparison to the paler fibers, which have little myoglobin.
B
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A) Z line. B) M line. C) H band. D) A band. E) I band.
The watery fluid component of blood is called
A) hemosol. B) liquid elements. C) formed elements. D) hemoplasm. E) plasma.
Air enters the tracheae of insects through the
A) Spiracles. B) Ostia. C) Madreporite. D) Buccal cavity.
Chemical reactions with the property of being able to proceed from reactants to products and from products to reactants are called
A. synthesis reactions. B. decomposition reactions. C. exchange reactions. D. reversible reactions. E. net reaction rates.