Which of the substances below does NOT travel in the blood andact on a receptor
to cause its effects?
A. cholecystokinin
B. chymotrypsin
C. gastrin
D. secretin
If the vagus nerves (parasympathetic) were cut, which one of thefollowing is true?
A. bicarbonate secretion by the pancreas will be inhibited in theintestinal phase
B. the cephalic phase of gastric secretions would beinhibited
C. saliva secretion would no longer occur
D. glucose absorption will be prevented
If brush border cells were no longer functioning, which one ofthe following could still
be digested?
A. dipeptide à amino acid + amino acid
B. triglyceride à monoglyceride + 2 fatty acids
C. fructose à glucose + sucrose
D. lactose à glucose + galactose
What is true regarding the absorption of carbohydrates?
A. monosaccharides must be further digested before they can beabsorbed
B. disaccharides are absorbed with hydrogen ions across the apicalmembrane of
intestine cells
C. sodium cotransporters move all absorbable carbohydrates intoepithelial cells
D. fructose can be absorbed with a facilitated transporter
What is true regarding carbohydrate use in the body?
A. neurons increase glycogenesis in the fed state
B. glycogenolysis in skeletal muscle provides glucose for thebody
C. excess glucose is utilized in a process of lipogenesis
D. an increase in blood glucose levels results in ketogenesis
What is true about neurons that produce vasopressin(antidiuretic hormone)?
A. are found within the suprachiasmatic nucleus
B. have axons that end within the posterior pituitary
C. are activated when blood volume is elevated
D. are sensitive to blood temperature changes
20. What are mutations of the MC4 receptor
