BIO 151 Module 6 Exam Portage learning 2023

Explain two reasons why a woman with low levels of LH would not be able to become pregnant. Your Answer: 1. LH acts on the ovaries to cause ovulation to occur hence a woman with low levels of LH can not have adequate ovulation. 2. LH cause progesterone to be released and this facilitaes fertilization of the egg and pregnancy (1) LH acts on the ovary to cause ovulation to occur. (2) LH causes progesterone release to facilitate potential fertilization of the egg and pregnancy. Progesterone is a key hormone for the maintenance of pregnancy. Question 2 5 / 5 pts Would you expect a male to have estrogen in their bloodstream? Explain why or why not. Your Answer: Yes. Both male and female produce the "all sex hormones"even though they are on different ratios. The adrenaline glands are responsible for producing the opposite hormones that ovaries do not produce. (1)Yes. Both male and female bodies produce “all” the sex hormones. However, the ratios are different. (2) The adrenal glands are largely responsible for producing this “opposite” hormone that the testis would not. Question 3 10 / 10 pts Label the endocrine glands (A-C) A: _____________ B: _____________ C: _____________ Your Answer: A:Pineal Gland B. Hypothalamus C: Pituitary Gland A: Pineal gland B: Hypothalamus C: Pituitary gland Question 4 10 / 10 pts Explain the concept of negative feedback and how it helps to maintain homeostasis. Your Answer: The increase level of hormones acts to stop the release of hormones. The brain monitors normone levels within a particular range and this keeps hormones in homeostasis. Negative feedback shuts down the hormone production when the required level is achieved 1- The effect or increased level of the hormone acts to shut down the continued release of the hormone. 2- The brain is constantly monitoring hormone levels to keep levels within a certain range or set-point (homeostasis). Negative feedback is a way of “turning off” hormone production when the desired level is achieved