All of the following are lipids except:

A. cholesterol
B. glycogen
C. phospholipids
D. female sex hormones
E. waxes


Answer: B

Biology & Microbiology

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Interleukin-1 stimulates ________________, which activate the remainder of the T and B cell immune system responses.

A. B cells B. T cells C. helper T cells D. natural killer cells

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Which of the following cells can serve as antigen-presenting cells?

a. macrophages, basophils, and B cells b. dendritic cells, B cells, and T cells c. macrophages, dendritic cells, and B cells d. B cells, T cells, and basophils e. macrophages, T cells, and basophils

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Which molecules influence the rate of transcription?

a. RNA polymerase b. regulatory proteins c. exons d. DNA e. promoters

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