Biology

Biology, 06.10.2019 01:10, charityclark1141

Which “fact” about testosterone is false?

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Chemistry, 21.06.2019 18:30, ciarakelly636owuiup

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

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Biology, 30.06.2019 23:00, jessie6516

Assume that you have chosen to research a topic for your biology class and you have become interested in studying the abuse of performance-enhancing drugs by male athletes. the first thing you learn is that many athletes use anabolic-androgenic steroid hormones. males produce one called testosterone, and an appropriate physiological concentration of testosterone keeps the production of sperm at nearly constant levels. you also learn that a consequence of injection of testosterone is suppression of sperm production. why do you suppose this is true? a. excess testosterone inhibits the activity of lh and fsh, neither of which is needed for sperm production. b. the excess testosterone can feed back and inhibit certain steps in spermatogenesis, resulting in lowered sperm counts. c. excess testosterone initiates the formation of diploid sperm. d. excess testosterone causes the release of more gnrh.

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Biology, 09.08.2019 04:10, fatheadd2007

Anew antagonist molecule has been discovered that binds to and blocks plasma membrane receptors. what effect will this antagonist have on testosterone, a steroid hormone? it will block testosterone from binding to its receptor. it will block testosterone from activating camp signaling. it will increase testosterone-mediated signaling. it will not affect testosterone-mediated signaling.

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Health, 16.09.2019 22:30, rayne40

Astudy administering testosterone to women found which of these effects? ? a. ? testosterone increased their violent dreams. b. ? testosterone increased the amount of time they looked at angry faces. c. ? testosterone made them want to play pool, drink beer, and spit. d. ? testosterone caused them to report feeling angry for no apparent reason.

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