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






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






3. Secreted from the intestinal mucosa for polypeptide digestion






4. Where mechanical and chemical digestion of food begins






5. Vessels of the lymphatic system






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






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






8. 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






9. Produced by the pancreas for fat digestion






10. The muscular tube leading from the mouth to the stomach






11. Occurs within the cell - usually in membrane-bound vesicles






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






13. Enzymes are secreted - hydrolyzing complex nutrients into simpler molecules - which are then absorbed






14. (Insects) have a digestive system similar to that of the earthworm






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






16. Secreted from intestinal mucos for digestion of lactose






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






18. To grind the food






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






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






21. An acidic - semifluid mixture of partially digested food produced from the churning of the stomach






22. Secretes two substances: intrinsic factor and hydrchloric acid






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






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






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






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






27. Biting and chewing action of teeth






28. Produced by the pancreas for protein digestion






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






30. Uses intracellular and extracellular digestion






31. Unable to synthesize their own nutrients






32. Improve food digestion






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






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






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






36. Secreted by the stomach that is a protein-hydrloyzing enzyme - and hydrochloric acd - which kills bacteria - dissolves the intercellular 'glue' holding food tissues together - and activates certain proteins






37. Converted to pepsin and synthesized by chief cells






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






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






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






41. Lacking lactase enzyme






42. Place to store food






43. 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






44. Produces enzymes such as amylase - trypsin - lipase






45. Secreted from the intestinal mucosa for fat digestion






46. Produced by the pancreas to digest carbohydrates






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






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






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






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