Question

26) The endocrine gland that produces epinephrine is the A) ovary. B) adrenal medulla. C) adrenal cortex D) testis. 27) The increased contraction of the human uterus during labor and delivery is at least partially dae to the actions of A) epinephrine. B) glucagon C) thyroxine. D) oxytocin. 28) Abnormally reduced somatic growth (dwarfism) can be a consequence of decreased hormone secretion from the A) anterior pituitary gland. B) pancreas. C) adrenal gland. D) posterior pituitary gland 29) The hypothalamus controls A) functions only as an endocrine target. B) functions only in neural transmission C) does not have any hormone receptors on its cells. D) most neuroendocrine signaling in mammals. 30) Most of the exchange surfaces of multicellular animals are lined with A) connective tissue. B) smooth muscle cells. C nervous tissue. D) epithelial tissue. Chapter 33 31) The large surface area in the small intestine directly facilitates A) secretion. B) absorption C) elimination D) filtration 32) An advantage of a complete digestive system over a gastrovascular cavity is that the complete system A) excludes the need for extracellular digestion. B) facilitates intracellular digestion. C) allows for specialized regions with specialized functions. D) allows digestive enzymes to be more specific 33) In the digestive system, peristalsis is A) a process of fat emulsification in the small intestine. B) voluntary control of the rectal sphincters regulating defecation. C) the transport of nutrients to the liver through the hepatic portal vein. D) smooth muscle contractions that move food along the esophagus. 34) Once humans ingest food, the first category of macromolecules to be chemically digested by enzymes in the mouth is A) proteins. B) carbohydrates. C) lipids. D) nucleic acids. 35) Earthworms, grasshoppers, and birds all have a A) stomach. B) larynx. C) crop. D) pharynx. 36) Digestive secretions with a pH of 2 are characteristic of the A) small intestine. B) stomach. C) pancreas D) liver. 37) Pepsin is a digestive enzyme that A) is manufactured by the pancreas. C) splits maltose into monosaccharides. B) helps stabilize fat-water emulsions. D) begins the hydrolysis of proteins in the stomach. 38) Upon activation by stomach acidity, the secretions of the parietal cells A) initiate the digestion of protein in the stomach. B) initiate the chemical digestion of lipids in the stomach C) initiate the mechanical digestion of lipids in the stomach. D) include pepsinogen. 39) Bile salts are a major component of bile. Which is the correct statement for bile salts. Bile salts A) are enzymes. B) are manufactured by the pancreas. C) emulsify fats in the duodenum. D) increase the efficiency of pepsin action.

Answer 1

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