What might happen if you did not get enough niacin in your diet?
a. glucose would not be able to be cleaved.
b. available FAD would decrease.
c. when the 3-carbon chain is oxidized in glycolysis, electrons would not be able to be captured.
d. only fermentation would be possible
e. all of these answers.
C
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Ectoderm is to ________ as mesoderm is to ________
A) neural tissue; muscle tissue B) cardiovascular system; neural tissue C) mesoderm; endoderm D) neural tissue; epithelial tissue E) muscle tissue; neural tissue
Which statement(s) regarding endocrine glands is/are true?
a. lack ducts. b. secrete hormones internally into the blood. c. are derived from epithelial tissue. d. include the parathyroids. e. all of these answers.
In anticipation for a medical school swimming party, a 60-year-old male professor squeezes into last year's bikini bathing suit despite gaining 25 lb over the winter. Following a day of "impressing" his students and colleagues, he notices numbness, tingling, and a burning sensation in the lateral aspect of his left upper thigh. His symptoms are exacerbated by applying pressure near the left anterior superior iliac spine. What nerve is most likely affected?
(A) Lateral femoral cutaneous nerve (B) Femoral branch of genitofemoral nerve (C) Anterior cutaneous branches of femoral nerve (D) Ilioinguinalnerve (E) Iliohypogastric nerve
The second signal during B-lymphocyte activation involves stimulation from
A. antibodies released by antigens. B. bradykinin released by antigen-presenting cells. C. IL-2 released by cytotoxic T-lymphocytes. D. IL-4 released by helper T-lymphocytes.