Chapter 23: Self-Quiz An acidic mixture of partially digested food that moves from the stomach into the small intestine is called cholecystokinin bile lymph secretin chyme The hormone responsible for stimulating secretion of hydrochloric acid by stomach cells is pepsin gastrin cholecystokinin insulin secretin Which of the following is not characteristic of bile? It is produced in the gallbladder. It is a mixture of special salts, water, and cholesterol. It acts as a detergent or emulsifying agent. It helps expose a large surface area of lipid for attack by lipases. It works in the small intestine. Which of the following nutrients do not provide direct energy for animals? fats carbohydrates proteins vitamins All of these provide energy. Which of the following is the most concentrated energy source? lipids carbohydrates proteins minerals vitamins When your mother told you to eat carrots for better eyesight, she was wrong, because they contain large amounts of vitamin C, which will prevent scurvy wrong, because they contain large amounts of vitamin K, which helps with blood clotting wrong, because they contain large amounts of vitamin D. which helps to prevent rickets right, because they contain vitamin A, which is involved in the production of visual pigment right, because they contain vitamin C, which is involved in maintaining the walls of blood vessels in the retina The stomach and small intestine differ in that the stomach does not secrete mucus secretes enzymes must be acid for enzymes to work absorbs the products of digestion has microvilli Most of food digestion occurs in the mouth stomach small intestine liver large intestine Which of the following exhibits segmentation and peristalsic movements? esophagus stomach small intestine large intestine rectum Which of the following statements is false? Urea is more toxic than ammonia. Ammonia is converted to urea in the liver. Ammonia is produced in body cells. The fluid collected in Bowman's capsule is called the filtrate. Tubule means "little tube." Which of the following causes a decrease in ADH production? dehydration drinking beer an increase in osmotic pressure of blood abnormally high blood sugar strenuous exercise The function of the glomerulus and Bowman's capsule of the nephron is to reabsorb water into the blood eliminate ammonia from the body reabsorb salts and amino acids filter the blood and capture the filtrate concentrate the urine What determines the ability of a mammal to concentrate its urine? number of nephrons length of the tubules length of the collecting duct size of the glomerulus length of the loop of Henle Which of the following processes does not occur in the nephron and collecting duct? filtration elimination of urea from the body reabsorption of nutrients tubular secretion concentration of urine Where are human kidneys located? on each side of the esophagus in the chest cavity around the level of the waist at the base of the brain below the large intestine The blood vessel leaving the glomerulus has a smaller diameter than the blood vessel entering it. This has the following effect: causes blood to move faster when it leaves the glomerulus increases reabsorption decreases reabsorption creates pressure that causes filtration increases active transport Which of the following sequences correctly traces the path of urine? tenal pelvis, urethra, bladder, ureter tenal pelvis, ureter, bladder, urethra tenal pelvis, uterus, bladder, urethra tenal pelvis, bladder, ureter, urethra ureter, urethra, bladder, renal pelvis Antidiuretic hormone (ADH) is put into the blood by the hypothalamus pituitary gland kidney liver small intestine Long loops of Henle correlate with more concentrated urine more dilute urine urine hypotonic to the blood urine isotonic to the blood urine with glucose in it The process by which water and nutrients are passed from the filtrate back into the blood is known as tubular secretion tubular reabsorption filtration tubular excretion tubular elimination Designed in cooperation with Andrew Stull and Steven Brunasso. Last Update - July 25, 1997 © Prentice-Hall, Inc. A Simon & Schuster Company Upper Saddle River, New Jersey 07458 Legal Statement
Designed in cooperation with Andrew Stull and Steven Brunasso. Last Update - July 25, 1997
Last Update - July 25, 1997
