BIOD 151/A & P 1 Module 6 Exam...Portage Learning...A+

Question 1 5 / 5 pts Explain two reasons why a woman with low levels of LH would not be able to become pregnant. (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 female to have testosterone in their bloodstream? Explain why or why not. (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 ovaries would not. Question 3 10 / 10 pts Label the endocrine glands (A-C) A: _____________ B: _____________ C: _____________ BIOD 151/A & P 1 Module 6 Exam...Portage Learning...A+ A: Pineal gland B: Hypothalamus C: Pituitary gland Question 4 10 / 10 pts Explain the concept of positive feedback. Give an example of a hormone that works through positive feedback. . 1- Positive feedback is the action of a hormone increasing the production of that hormone. (This is the opposite of negative feedback). 2- One example is the action of oxytocin causing the uterus to contract during labor. Oxytocin enhances the effect of the uterus contractions, causing more oxytocin to be released. The positive feedback loop is stopped once the baby is born and the uterus no longer needs to contract, stopping the production of oxytocin. Question 5 2 / 2 pts This type of hormone is derived from cholesterol: Peptide hormones Catecholamines Correct! Steroid hormones Tyrosine Question 6 2 / 2 pts Growth hormone____ A. is most active during childhood/adolescence. B. can cause disease if levels are not correct. C. cannot affect an adult. Correct! D. A &B Question 7 2 / 2 pts Neurons in the hypothalamus are called ______ Correct! Neurosecretory Vasopressin Melanocytes Somatotropic Question 8 2 / 2 pts Which hormone production is decreased with sunlight? MSH –melanocyte stimulating hormone Correct! melatonin cortisol GH -Growth hormone Question 9 2 / 2 pts The posterior pituitary stores these two hormones: ADH and Prolactin TSH and LH LH and FSH Correct! ADH and Oxytocin Question 10 2.5 / 2.5 pts List the hormone(s) that best describes the statement below: I lower the level of calcium in the blood by depositing calcium into bone. Your Answer: Calcitonin Calcitonin Question 11 2.5 / 2.5 pts List the hormone(s) that best describes the statement below: I am secreted by the pituitary to stimulate the thyroid. TSH Question 12 2.5 / 2.5 pts List the hormone(s) that best describes the statement below: I am secreted by the beta cells of the pancreas