Test 3 Biology 220 Questions and answers

CRH secretion would not raise the blood concentration of a) ACTH. b) Thyroxine. c) Cortisol. d) Corticosterone. e) Glucose. Which of the following hormones has the least in common with the others? a) Adrenocorticotropic hormone b) Follicle-Stimulating hormone c) Thyrotropin d) Thyroxine e) Prolactin Which hormone would no longer be secreted if the hypothalamus hypophyseal tract were destroyed? a) Oxytocin b) Follicle-stimulating hormone c) Growth hormone d) Adrenocorticotropic hormone e) Corticosterone Which of the following is not a hormone? a) Prolactin b) Prolactin-inhibiting hormone c) Thyroxine-binding globulin d) Atrial natriuretic peptide e) Cortisol Where are the receptors for insulin located? a) In the pancreatic beta cells b) In the blood plasma c) On the target-cell membrane d) In the target—cell cytoplasm e) In the target-cell nucleus What would be the consequence of defective ADH receptors? a) dIabetes mellitus b) adrenogential syndrome c) dehydration d) seasonal affective disorder e) none of these Which of these has more exocrine than endocrine tissue? a) The pineal gland b) The adenohypophysis c) The thyroid gland d) The pancreas e) The adrenal gland Which of these cells stimulate bone deposition? a) Alpha cells b) Beta cells c) C cells d) G cells e) T cells Which of these hormones relies on cAMP as a second messenger? a) ACTH b) Progesterone c) Thyroxine d) Testosterone e) Estrogen Prostaglandins are derived from a) Proopiomelanocortin b) Cyclooxygenase c) Leukotriene d) Lipoxgenase e) Arachidonic acid Which of the following enzymes acts in the stomach? a) Chymotrypsin b) Lingual lipase c) Carboxypeptidase d) Enterokinase e) Dextrinase Which of the following is not an enzyme? a) Chymotrypsin b) Enterokinase c) Secretin d) Pepsin e) Nucleosidase Which of the following enzymes does not digest any nutrients? a) Chymotrypsin b) Lingual lipase c) Carboxypeptidase d) Enterokinase e) Dextrinase The substance in question 2 that is not an enzyme is a) Zymogen b) A nutrient c) An emulsifier d) A neurotransmitter e) A hormone The lacteals absorb a) Chylomicrons b) Micelles c) Emulsification droplets d) Amino acids e) Monosaccharides All of the following contribute to the absorptive surface area of the small intestine except a) Its length b) The brush border c) Haustra d) Circular folds e) Villi