Which function of cellular membranes is critical to the ionic and molecular organization of cells?
a. the controlled transport of ions and molecules across the membrane
b. cell-cell binding
c. recognition of other cells as being "foreign" or "self"
d. reception of chemical signals from other cells
e. participation in metabolic reactions
ANSWER: a
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Beta amyloid plaques are most often seen in persons suffering from ____
a. Parkinson's disease b. Alzheimer's disease c. heart disease d. muscular dystrophy e. multiple sclerosis
Replication in human cells begins at sites called ____________________, present along the
chromosome. Fill in the blank(s) with the appropriate word(s).
What cytokine helps induce proliferation and differentiation of B cells and T cells, stimulates release of acute phase proteins, and acts on the hypothalamus to induce fever?
A) interleukin-4 B) interferon-gamma C) interleukin-5 D) interleukin-10 E) interleukin-1
The building of complex organic molecules from simpler ones is called
a) catabolism. b) anabolism. c) photosynthesis. d) oxidation.