The average pressure in veins is approximately __________.
a. 2 mm Hg
b. 10 mm Hg
c. 16 mm Hg
d. 80 mm Hg
Answer: c. 16 mm Hg
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What is the term describing the covalent bond formed between two amino acids?
A. Hydrolytic bond B. Phosphodiester bond C. Peptide bond D. Ester bond E. Glycosidic bond
One cause of hypoxic hypoxia in disease is diffusion impairment of O2 resulting from decreased alveolar surface area.
Answer the following statement true (T) or false (F)
Second messenger-activating hormones circulate in minute quantities because:
A. they are not important signal molecules. B. small concentrations of hormone can activate many intracellular signals via amplification. C. they are continuously released from the gland. D. neurotransmitters also bind to hormone receptors.
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.