BIOD 151 Hormonal Response Questions with complete solutions 2023/2024

BIOD 151 Hormonal Response Questions with complete solutions 2023/2024 What is necessary in maintaining homeostasis? - correct answer Negative feedback Horomones - correct answer Chemicals made by tissues to get secreted in the blood and act on other tissues How are testosterone levels regulated? - correct answer Negative feedback using a hormonal response to change the levels What does almost all of the physiological control? - correct answer The hypothalamus talking to the pituitary What regulates the anterior pituitary? - correct answer GnRH in both males and females (increase in GnRH causes the A pituitary to be stimulated) What does the A pituitary release? - correct answer LH and FSH When the A pituitary releases LH, where does it go? - correct answer Into systemic circulation, and then into the Leydig cells in the testes to stimulate testosterone to stimulate spermatogenisis and stimulates ovulation by turning the dominant follicle into the corpus luteum to produce progesterone What do the Testes release when their leydig cells are activated? - correct answer Testosterone into circulation and into the testes to create the male germ cells When testosterone is released into circulation, where does it go? - correct answer Back to the androgen receptors in the hypothalamus to turn off production of GnRH (negative feedback) What is the ranking for using up stored energy? - correct answer Glucogen in the liver is first, then in muscle cells, and then fat cells Glucose homeostasis depends on... - correct answer Opposing effects of insulin and glucagon What happens if blood glucose levels are high vs low? - correct answer High: Insulin secreted so that glucose is taken out of the blood and into the rest of the body Low: Glucagon secreted to release glucose into the blood from the liver What does the pancreas produce and with which cells? - correct answer Alpha: glucose Beta: Insulin Which 2 negative feedback loops control sex horomone production in male? - correct answer 1. Testosterone negatively regulates the hypothalamus' and ap's release of GnRH, FSH, LH 2. Inhibin negatively regulates ap's secretion of FSH Difference between negative and positive feedback? - correct answer Negative regulates and inhibits and original stimulus= returns it to the original state Positive reinforces a stimulus and leads to a greater response How does the hympolthalamus regulate body temperature? - correct answer Increasing the temperature in the hypo causes a decrease in the rest of the body Ingestion happens where and does what - correct answer Oral cavity, uses salivary glands Digestion happens where and does what - correct answer Breaks down food for the body to absorb 1. Mechanical digestion (mouth chewing and amylase and stomach peristalsis) 2. Chemical digestion: processes food and uses acid hydrolysis to break food down, mainly proteins (stomach using chyme) Majority of digestion happens in small intestine Absorption - correct answer The duodenum in the small intestine absorbs amino acids and sugars