Test your basic knowledge |

PCAT Biology Digestion

Subjects : pcat, biology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Biting and chewing action of teeth






2. Secretion of the parietal cells that facilitates the absorption of vitamin b12 across the intestinal lining






3. Accomplished by enzymatic hydrolysis -nutrients pass through the semipermeable plasma membrane of the gut cells to be further metabolized or transported






4. Synthesized and stored in the S cells of the upper intestine -stimulates the secretion of bicarbonate-containing substances from the pancreas and inhibits gastric emptying and gastric acid production






5. Refers to a digestive process that occurs outside of the cell - within a lumen or tract






6. Line the gastrovascular cavity secrete enzymes into the cavity






7. Place to store food






8. Uses intracellular and extracellular digestion






9. Patients usually have a decreased lower esophageal reflux pressure - leading to an increased passage of stomach contents into the esophagus






10. Secreted from intestinal mucos for digestion of lactose






11. Can occur after spontaneous transient lower esophageal sphincter relaxations not associated with swallowing






12. Decreased lower esophageal sphincter pressure is not always associated with the development of GERD; however - the majority of patients






13. Refers to the enzymatic breakdown of macromolecules into smaller molecules and begins in the mouth when the salivary glands secrete saliva






14. Lacking lactase enzyme






15. 1.5m long -functions in the absorption of salts and the absorption of any water not already absorbed by the small intestine






16. Produces enzymes such as amylase - trypsin - lipase






17. Fuse with the food vacuole and release their digestive enzymes that act upon the nutrients






18. The breakdown of large food particles into smaller particles through mastication






19. Vessels of the lymphatic system






20. Converted to pepsin and synthesized by chief cells






21. A large - muscular organ located in the upper abdomen - stores and partially digests food






22. Finger like projections that extend out of the intestinal wall -contain capillaries and lacteals






23. Secreted from the intestinal mucosa for fat digestion






24. Large particles of food into small particles begins by cutting and grinding in the mouth and churning in the digestive tract






25. Begins with oral cavity and continues with the pharynx - the esophagus - stomach - small inestine - large intestive - then anus






26. Food is moved down the esophagus by this rhythmic waves of involuntary muscular contraction






27. Secreted by the glands of the stomach which protects the stomach lining from the harshly acidic juices present in the stomach






28. Produces bile in the gall bladder before release into the small intestine






29. Degradation of large molecules into smaller molecules that can be absorbed into the bloodstream and used directly by cells






30. Enzyme in saliva which hydrolyzes starch to maltose






31. Where mechanical and chemical digestion of food begins






32. Bring food to the mouth (ingestion) and release the particles intoa cup-like sac






33. Provides for transient storage of feces before elimination through the anus






34. Restin pressures of the lower esophageal sphincter normally range from 15-35mmHg above gastric baseline pressure






35. Stimulates the parietal cells to produce a substance (HCl) that denatures proteins and activates digestive enzymes






36. Contains a typholosole to provide increased surface area for digestiona nd absorption






37. Produced and stored in the I cells of the duodenal and jejunal mucosa






38. When nutrients are required for plants - the storage polymers are broken down to simpler molecules by enzyme hydrolysis






39. Pseudopods surround and engulf food and enclose it in food vacuoles






40. A typical saprophyte that lives on dead organic material - that secrete enzymes into the external environment (on bread)






41. Produced by the pancreas to digest carbohydrates






42. Enzymes are secreted to digest the fly and absorb the soluble end products






43. Unable to synthesize their own nutrients






44. Lubricates food to facilitate swallowing and provides a solvent for food particles =secreted in response toa nervous reflex triggered by the presence of food in the oral cavity






45. Improve food digestion






46. Secreted from intestinal mucosa for digestion of maltose - lactose - sucrose






47. Produced by the pancreas for protein digestion






48. Secretes two substances: intrinsic factor and hydrchloric acid






49. Completes chemical digestion -divided into three section: duodenum - jejunum - and the ileum -highly adapted to absorption






50. Have one way digestive tract with both a mouth and an anus