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Test your basic knowledge |
PCAT Biology Digestion
Start Test
Study First
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. Where mechanical and chemical digestion of food begins
Oral Cavity
Mastication
Intracellular Digestion
Bile
2. When nutrients are required for plants - the storage polymers are broken down to simpler molecules by enzyme hydrolysis
Villi
Lysosomes
Intracellular Digestion
Digestion
3. Uses intracellular and extracellular digestion
Cnidarians/ Hydras
Aminopeptidase
Mechanical Digestion
Villi
4. Large particles of food into small particles begins by cutting and grinding in the mouth and churning in the digestive tract
Secretin
GERD
Mastication
Physical Breakdown
5. To grind the food
Endodermal Cells
Gizzard (in annelids)
Chemical Breakdown
Pepsi
6. Pseudopods surround and engulf food and enclose it in food vacuoles
Phagocytosis
Lacteals
Lactose-Intolerant
Human Digestive Tract
7. Finger like projections that extend out of the intestinal wall -contain capillaries and lacteals
Bile
Mucus
Endodermal Cells
Villi
8. Enzymes are secreted - hydrolyzing complex nutrients into simpler molecules - which are then absorbed
Secretin
Extracellular Digestion
Digestion
Human Digestive Tract
9. Produced and stored in the I cells of the duodenal and jejunal mucosa
GERD
Esophagus
Venus flytrap
Cholecystokinin
10. Unable to synthesize their own nutrients
Heterotrophic
Lipase
Gastrin
Intrinsic factor
11. Occurs within the cell - usually in membrane-bound vesicles
Phagocytosis
Oral Cavity
GERD
Intracellular Digestion
12. Line the gastrovascular cavity secrete enzymes into the cavity
Physical Breakdown
Endodermal Cells
Pancreas
Heterotrophic
13. Secreted from the intestinal mucosa for polypeptide digestion
GERD
Liver
Pepsinogen
Aminopeptidase
14. Lacking lactase enzyme
Pepsinogen
Lactose-Intolerant
Disacchaidases
Endodermal Cells
15. Emulsifies fats - breaking down large globules into small droplets (contains no enzymes)
Salivary Glands
Trypsin
Bile
Mastication
16. Begins with oral cavity and continues with the pharynx - the esophagus - stomach - small inestine - large intestive - then anus
Parietal Cell
Human Digestive Tract
Annelids/Earthworms
Arthropods
17. Fuse with the food vacuole and release their digestive enzymes that act upon the nutrients
Human Digestive Tract
Lysosomes
Large Intestine
Small Intestine
18. Secreted from the intestinal mucosa for fat digestion
Physical Breakdown
Lipase
Amylase
Trypsin
19. Produces bile in the gall bladder before release into the small intestine
Arthropods
Liver
Crop (in annelids)
Large Intestine
20. Enzymes are secreted to digest the fly and absorb the soluble end products
Large Intestine
Venus flytrap
Disacchaidases
Gizzard (in annelids)
21. Secreted from intestinal mucosa for digestion of maltose - lactose - sucrose
Oral Cavity
Venus flytrap
Disacchaidases
Chyme
22. The breakdown of large food particles into smaller particles through mastication
Extracellular Digestion
Mechanical Digestion
Secretin
GERD
23. The muscular tube leading from the mouth to the stomach
Lactose-Intolerant
Large Intestine
Intestine (in annelids)
Esophagus
24. Produces enzymes such as amylase - trypsin - lipase
Lipase
Pancreas
Venus flytrap
Esophagus
25. Provides for transient storage of feces before elimination through the anus
Chyme
Venus flytrap
Pepsinogen
Rectum
26. Produced by the pancreas for fat digestion
Chemical Digestion
Liver
Rhizoids
Lipase
27. Patients usually have a decreased lower esophageal reflux pressure - leading to an increased passage of stomach contents into the esophagus
Rectum
Phagocytosis
Intestine (in annelids)
GERD
28. Refers to the enzymatic breakdown of macromolecules into smaller molecules and begins in the mouth when the salivary glands secrete saliva
Lysosomes
Stomach
Annelids/Earthworms
Chemical Digestion
29. Improve food digestion
Lipase
Small Intestine
Salivary Glands
Arthropods
30. Accomplished by enzymatic hydrolysis -nutrients pass through the semipermeable plasma membrane of the gut cells to be further metabolized or transported
Secretin
Intestine (in annelids)
Bile
Chemical Breakdown
31. Biting and chewing action of teeth
Mastication
Aminopeptidase
Trypsin
Esophagus
32. Have one way digestive tract with both a mouth and an anus
Large Intestine
Annelids/Earthworms
Extracellular Digestion
Small Intestine
33. A large - muscular organ located in the upper abdomen - stores and partially digests food
Stomach
Lactase
Endodermal Cells
Pepsi
34. A typical saprophyte that lives on dead organic material - that secrete enzymes into the external environment (on bread)
Rhizoids
Salivary Glands
Rectum
Lacteals
35. 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
Pepsinogen
Aminopeptidase
Saliva
Physical Breakdown
36. Contains a typholosole to provide increased surface area for digestiona nd absorption
Saliva
Intracellular Digestion
Venus flytrap
Intestine (in annelids)
37. Stimulates the parietal cells to produce a substance (HCl) that denatures proteins and activates digestive enzymes
Gastrin
Saliva
Large Intestine
GERD
38. Enzyme in saliva which hydrolyzes starch to maltose
Extracellular Digestion
Salivary Amylase (ptyalin)
Stomach
Lipase
39. Produced by the pancreas for protein digestion
Human Digestive Tract
Trypsin
Salivary Glands
Intracellular Digestion
40. (Insects) have a digestive system similar to that of the earthworm
Arthropods
GERD
Heterotrophic
Pepsi
41. Secretes two substances: intrinsic factor and hydrchloric acid
Cnidarians/ Hydras
Rectum
Villi
Parietal Cell
42. 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
Esophagus
Pepsi
Gastrin
Small Intestine
43. Vessels of the lymphatic system
Amylase
Extracellular Digestion
Heterotrophic
Lacteals
44. 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
Arthropods
Mucus
Lipase
Secretin
45. Refers to a digestive process that occurs outside of the cell - within a lumen or tract
Bile
Pepsi
Extracellular Digestion
GERD
46. Food is moved down the esophagus by this rhythmic waves of involuntary muscular contraction
Peristalsis
Bile
Lipase
Arthropods
47. Degradation of large molecules into smaller molecules that can be absorbed into the bloodstream and used directly by cells
Digestion
Lacteals
Intrinsic factor
Human Digestive Tract
48. Converted to pepsin and synthesized by chief cells
Mastication
Extracellular Digestion
Pepsinogen
GERD
49. Secreted from intestinal mucos for digestion of lactose
Human Digestive Tract
Mucus
Lactase
Venus flytrap
50. An acidic - semifluid mixture of partially digested food produced from the churning of the stomach
Venus flytrap
Intracellular Digestion
Chyme
Liver