Digestion

1. Digestion This quiz will require you to apply concepts from digestion. Click here to see the instructions

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4. The three stages of digestion, in correct order, are: Cephalic Intestinal Gastric Cephalic Gastric Intestinal Gastric Cephalic Pancreatic Intestinal Gastric Cephalic Gastric Pancreatic Intestinal Cephalic Intestinal Pancreatic

5. Which part of the autonomic nervous system is activated during digestion? Peripheral Sympathetic Parasympathetic Unsympathetic Central Mucosal

6. During digestion, smooth muscle activity in the gut: Stops Increases and then decreases Increases Decreases and then increase Decreases Does not change

7. Carbohydrates are digested by the enzyme: Amylin Lipase Pepsin Amylase Carboxypeptidase Glucagon

8. Carbohydrate molecules are broken down into: Saccharin Glycerol Polysaccharides Glycogen Polypeptides Monosaccharides and disaccharides

9. When they have been absorbed into the blood, monosaccharides: Are picked up by cells using glucose porter proteins Leave the body in the stools Are released into the urine Are destroyed by the liver Leave the body in the sweat Stimulate glucagon secretion

10. To make the glucose porter proteins, cells need: Glucagon Insulin Pepsin Amylase Amylin Glycogen

11. Without insulin, the digested sugars: Accumulate in the blood Enter fat cells Pass out in the stools Go out in the sweat Are made into proteins Are converted back into carbohydrates

12. If Insulin is present, excess sugar is: Picked up by cells and stored as starch Released in the urine Picked up by the cells and stored as glucagon Released into the stools picked up by the cells and stored as glycogen Returned to the intestinal contents

13. When the blood glucose is low, the pancreas secretes: Insulin Glucagon Glycogen Amylin Amylase Secretin

14. Glucagon causes the cells to: Secrete digestive enzymes Break down their stored food and release it to the blood Build muscle Pick up food from the blood Stop all metabolic activity Make more glycogen

15. During the gastric phase, the stomach: Secretes trypsin and pancreatic amylase Inhibits intestinal motility Turns off the parasympathetic nervous system Opens the pyloric sphincter secretes HCl, mucus, pepsinogen, intrinsic factor, and gastrin Closes the lower esophageal sphincter

16. What is Gastrin? A ligament holding the stomach in position A digestive enzyme that sometimes causes ulcers A soapy substance lining the alveoli A neurotransmitter that tells your brain your stomach is full A substance in the sweat that causes body odor A hormone that stimulates stomach activity

17. What makes the stomach stop creating Gastrin? Decreased blood volume Stretch receptors in the stomach wall Shrunken cells The parasympathetic nervous system Hormones released from fat cells Hormones released by the intestines when food enters them

18. The pyloric sphincter lets food through when: The duodenum is empty The stomach has stopped secreting digestive enzymes The cephalic phase of digestion begins The stomach squeezes small particles down through it Insulin is released The parasympathetic system turns on

19. The duodenum releases three hormones. What are they? Cortisol, aldosterone, and testosterone Secretin, Cholecystokinin, and GIP Antidiuretic hormone, Parathyroid hormone, and Growth hormone Insulin, glucagon, and amylin Gastrin, secretin, and ghrelin Secretin, cholecystokinin, and glucagon

20. One effect of cholecystokinin is: Decreases intestinal motility causes the gall bladder to send bile into the duodenum Causes insulin secretion Nothing Increases blood K+ Causes hunger

21. What does the pancreas do in response to cholecystokinin? Releases insulin Sends digestive enzymes to the duodenum Releases glucagon Sends bicarbonate to the duodenum Releases thyroxine Sends acid to the duodenum

22. What is bile? An antacid that protects the duodenum A hormone that tells the brain the man has eaten fats A digestive enzyme that breaks down fat molecules A neurotransmitter that turns off stomach motility A compound made from bilirubin and cholesterol, used to emulsify fats A toxic compound caused by white blood cell breakdown

23. Where is bile made? The liver The stomach The spleen The gall bladder The bone marrow The thymus

24. A man with liver failure might develop: High blood osmolarity Acne Sunken eyes Constipation Low body temperature Fatty stools

25. The food absorbed from your gut contents goes straight to the: Hepatic portal vein Urine Heart Fat cells Stools Brain