Which of the following is NOT found in the dermis of the skin?
A. Connective tissue
B. Nerve endings
C. Melanocytes
D. Sweat glands
Answer: C
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All prostaglandins are derived from a 20-carbon precursor molecule called
a) thromboxane. b) intrinsic factor. c) thymopoietin. d) arachidonic acid. e) cholesterol.
Which of the following is true concerning women's hormone levels in menopause?
A) Generally hormone secretion remains relatively constant. B) Serum levels of follicle stimulating hormone (FSH) and Leutinizing hormone (LH) rise. C) Ovarian production of estrogen decreases but progesterone production remains constant. D) The number of tissue receptors may increase, requiring greater hormone secretion to achieve the same effect.
The portion of the hair that extends above the surface of the skin is the ________.
A. medulla B. shaft C. cuticle D. root E. hair bulb
What kind of bond forms during the dehydration synthesis of two amino acids, and which functional groups are involved?
A) A glycosidic bond forms between the amino group of one amino acid and the carboxyl group of the other amino acid. B) A hydrogen bond forms between the hydrogen atom of one amino acid and the oxygen atom of the other amino acid. C) An ionic bond forms between the amino ion of one amino acid and the carboxylic acid of the other amino acid. D) A lipophilic bond forms between the hydrophobic tail of one amino acid and the hydrophilic head of the other amino acid. E) A peptide bond forms between the amino group of one amino acid and the carboxyl group of the other amino acid.