Clicker L 23S19 PDF

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Clicker answers for Lecture #23...

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Clickers Lecture#23 1. A. B. C. D. E.

A difference between skeletal muscle and the other two muscles is: the presence of striations in skeletal; absence in others. the presence of troponin in skeletal; absence in others. regulation by calcium in skeletal; calcium not involved in others. the multinucleate cells in skeletal; uninucleate in others. the requirement for ATP for skeletal muscle contraction; ATP not needed for others.

2. A human child who is XY but who lacks receptors for androgens (like testosterone) would be expected to develop: A. ovaries but a penis. B. ovaries and a vagina. C. testes and a penis. D. testes but a vagina. E. no gonads and no genitals. 3. Which of the following statements about the initiation of puberty in human females is false? A. The hypothalamus’ negative feedback response to sex hormones is mostly eliminated immediately prior to puberty. B. Prior to puberty the [sex hormones] very gradually increases as the girl grows. C. The presence of a large amount of leptin produced by fat tissue inhibits puberty. D. The hypothalamus triggers puberty by releasing a large amount of GnRH. E. The anterior pituitary, in response to increased GnRH, releases lots of LH and FSH. 4. A. B. C. D. E.

Lipid soluble hormones: are typically proteins can pass through membranes. usually have membrane bound receptors. often travel freely in the blood. None of the above...