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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. Produced by the pancreas for fat digestion






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






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






4. Produces enzymes such as amylase - trypsin - lipase






5. Produced by the pancreas for protein digestion






6. Improve food digestion






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






8. Lacking lactase enzyme






9. Converted to pepsin and synthesized by chief cells






10. 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






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






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






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






14. Place to store food






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






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






17. 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






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






19. Enzyme in saliva which hydrolyzes starch to maltose






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






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






22. Unable to synthesize their own nutrients






23. Biting and chewing action of teeth






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






25. Secretes two substances: intrinsic factor and hydrchloric acid






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






27. Produced by the pancreas to digest carbohydrates






28. Secreted from the intestinal mucosa for fat digestion






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






30. Secreted from intestinal mucos for digestion of lactose






31. 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






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






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






34. Uses intracellular and extracellular digestion






35. Secreted from the intestinal mucosa for polypeptide digestion






36. Vessels of the lymphatic system






37. Emulsifies fats - breaking down large globules into small droplets (contains no enzymes)






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






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






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






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






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






43. Line the gastrovascular cavity secrete enzymes into the cavity






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






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






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






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






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






49. Where mechanical and chemical digestion of food begins






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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