The most abundant lipid of the membrane consists of a head and two tails. This type of lipid is
A. cholesterol.
B. a steroid.
C. glycoprotein.
D. a phospholipid.
E. glycolipid.
Answer: D
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Identify the correct match.
A) estrogen/produced by interstitial cells B) inhibin/stimulates FSH secretion C) androgen/stimulates male climacteric D) luteinizing hormone/stimulates interstitial cells E) gonadotropin-releasing hormone/inhibits FSH secretion
The term venous return refers to the volume of blood per __________ entering each __________ from the veins
Fill in the blank(s) with correct word
Which statement about platelets is incorrect?
a. They are produced in the bone marrow. b. They form the meshwork of a blood clot in which other cellular elements become entrapped. c. They form a plug when they adhere to the exposed collagen of a damaged vessel. d. When aggregated, they release thromboxane A2 that promotes secretion of ADP. e. When aggregated, they release ADP, which causes the surface of nearby circulating platelets to become sticky so that they also adhere to the enlarging platelet plug.
Which of the following does the hypothalamus not help control?
A. Hunger B. Speech C. Blood pressure D. Sex drive E. Sleepiness