Due to a recent head injury, a patient is told that his pituitary is hypersecreting prolactin. Is there need for concern about this young man?
What will be an ideal response?
Yes; there should be great concern, because hypersecretion of prolactin will lead to impotence.
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Three factors that increase the rates of enzyme-controlled reactions are the
A. size of the enzyme compared to the substrate, the number of active sites, and the ratio of enzyme to substrate molecules. B. number of enzyme and substrate molecules formed, and strength of the enzyme. C. temperature of the reaction, number of H2O molecules, and bond strength. D. number of enzyme molecules, number of substrate molecules, and efficiency of the enzyme.
The normal sequence of developmental stages is
a. blastocyst, morula, zygote, embryo, fetus b. blastocyst, zygote, embryo, morula, fetus c. morula, fetus, embryo, blastocyst, zygote d. morula, zygote, fetus, blastocyst, embryo e. zygote, morula, blastocyst, embryo, fetus
Air in the pleural cavity is called
A. forced expiration. B. emphysema. C. a pneumothorax. D. pneumonia. E. respiratory distress syndrome.
Which type of T cell is affected by HIV?
A. T Helper cells B. T Memory cells C. T Regulatory cells D. T Cytotoxic cells