Which of the following is NOT a property of enzymes?
a) Enzymes are catalytic proteins.
b) Enzymes are highly specific.
c) Enzymes are efficient.
d) Enzymes are subject to a variety of cellular controls.
e) Enzymes are irreversibly changed by the reactions that they catalyze.
Answer: e
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In the CNS, this structure is produced by oligodendrocytes
a) A b) B c) C d) D e) E
Valvular malfunction in the heart __________.
a. interferes with ventricular contraction b. causes an increase in the amount of blood pumped out of each ventricle c. interferes with movement of blood through the heart d. increases the cardiac output
The ________, or windpipe, delivers air to the bronchial tree
A) glottis B) pharynx C) larynx D) trachea
The interventricular septum forms a dividing wall between the
a. left atrium and left ventricle. b. left atrium and right atrium. c. right ventricle and left atrium. d. right atrium and right ventricle. e. left and right ventricles.