Consider an atom with four electrons in its outer shell. If that atom is covalently bound to three other atoms within a molecule, then it is
A. in a double bond with one atom and in single bonds with two atoms.?B. in a single bond with one atom and in double bonds with two atoms.?C. in a triple bond with one atom and in single bonds with two atoms.?D. in double bonds with all three atoms.?E. in single bonds with all three atoms.
A
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Antibodies are produced by
a. antibody presenting cells. b. macrophages. c. monocytes. d. plasma cells. e. serum cells.
The process of ventilation includes both the transport of gases by bulk flow and the diffusion of gases into and out of the blood.
Answer the following statement true (T) or false (F)
What type of drug is well absorbed from the gastrointestinal tract?
a. hydrophilic b. lipophilic c. water based d. charged
A lysosome contains about 500 different powerful hydrolytic enzymes that are synthesized in the ER
a. True b. False Indicate whether the statement is true or false