What is a functional group?
A) A functional group is the result of dissociation of organic molecules.
B) A functional group is the final energy source in organic catabolism.
C) A functional group is the complex created when an enzymes binds its substrate to complete a reaction.
D) A functional group is a grouping of atoms that confer specific chemical properties to the rest of the molecule to which it is attached.
E) A functional group is the specific grouping of atoms on a molecule to which enzymes can bind.
Answer: D
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A multifactorial trait is determined by
A. only genetic factors. B. one or more genes and the environment. C. only environmental factors. D. neither genetic nor environmental factors.
Urine passes through the ________.
A) renal hilum to the bladder to the ureter B) pelvis of the kidney to ureter to bladder to urethra C) glomerulus to ureter to renal tubule D) hilum to urethra to bladder
During the cardiac cycle of an individual at rest:
A. the volume of blood leaving the left side of the heart is greater than that leaving the right side. B. the pressure of blood leaving the right ventricle is greater than that leaving the left ventricle. C. the duration of systole is greater than that of diastole. D. the duration of diastole is greater than that of systole. E. the contraction of the atria overlaps in time with the ventricular systole.
Which type of vessel has the greatest compliance?
A. arteries B. veins C. arterioles D. capillaries