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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. Secreted from the intestinal mucosa for fat digestion
Lipase
Venus flytrap
Lysosomes
Pepsi
2. A large - muscular organ located in the upper abdomen - stores and partially digests food
Stomach
Pepsinogen
Venus flytrap
Mastication
3. Vessels of the lymphatic system
Lacteals
Human Digestive Tract
Extracellular Digestion
Lipase
4. 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
Cholecystokinin
Gastrin
Saliva
Intestine (in annelids)
5. Secreted from the intestinal mucosa for polypeptide digestion
Heterotrophic
Endodermal Cells
Aminopeptidase
Extracellular Digestion
6. Stimulates the parietal cells to produce a substance (HCl) that denatures proteins and activates digestive enzymes
Gastrin
Cholecystokinin
Mastication
Salivary Glands
7. Finger like projections that extend out of the intestinal wall -contain capillaries and lacteals
Villi
GERD
Intestine (in annelids)
Rectum
8. Secreted from intestinal mucos for digestion of lactose
Lactase
Large Intestine
Lactose-Intolerant
Pepsi
9. A typical saprophyte that lives on dead organic material - that secrete enzymes into the external environment (on bread)
Intestine (in annelids)
Rectum
Salivary Amylase (ptyalin)
Rhizoids
10. Enzymes are secreted to digest the fly and absorb the soluble end products
Venus flytrap
Phagocytosis
Salivary Amylase (ptyalin)
Villi
11. Unable to synthesize their own nutrients
Heterotrophic
Large Intestine
Saliva
Lysosomes
12. Secreted by the glands of the stomach which protects the stomach lining from the harshly acidic juices present in the stomach
Mucus
Physical Breakdown
Peristalsis
Pepsi
13. Enzymes are secreted - hydrolyzing complex nutrients into simpler molecules - which are then absorbed
Extracellular Digestion
Intrinsic factor
Stomach
GERD
14. Where mechanical and chemical digestion of food begins
Chemical Digestion
Oral Cavity
Trypsin
Pancreas
15. Produced by the pancreas to digest carbohydrates
Gastrin
Pepsi
Saliva
Amylase
16. The breakdown of large food particles into smaller particles through mastication
Mechanical Digestion
Physical Breakdown
GERD
Amylase
17. Place to store food
Human Digestive Tract
Crop (in annelids)
Amylase
Bile
18. Secretes two substances: intrinsic factor and hydrchloric acid
Human Digestive Tract
Parietal Cell
Oral Cavity
Mucus
19. Have one way digestive tract with both a mouth and an anus
Arthropods
Lactase
Annelids/Earthworms
Lipase
20. To grind the food
Mastication
GERD
Gizzard (in annelids)
Mechanical Digestion
21. Secreted from intestinal mucosa for digestion of maltose - lactose - sucrose
Digestion
Disacchaidases
Lipase
GERD
22. Patients usually have a decreased lower esophageal reflux pressure - leading to an increased passage of stomach contents into the esophagus
Pepsi
GERD
Cnidarians/ Hydras
Bile
23. Uses intracellular and extracellular digestion
Cnidarians/ Hydras
Intestine (in annelids)
Human Digestive Tract
Physical Breakdown
24. Pseudopods surround and engulf food and enclose it in food vacuoles
Phagocytosis
Human Digestive Tract
Extracellular Digestion
Lactose-Intolerant
25. Line the gastrovascular cavity secrete enzymes into the cavity
GERD
Intracellular Digestion
Endodermal Cells
Extracellular Digestion
26. Restin pressures of the lower esophageal sphincter normally range from 15-35mmHg above gastric baseline pressure
Villi
Amylase
GERD
Tentacles
27. Decreased lower esophageal sphincter pressure is not always associated with the development of GERD; however - the majority of patients
Pancreas
Peristalsis
Chemical Digestion
GERD
28. Produced and stored in the I cells of the duodenal and jejunal mucosa
Digestion
GERD
Lysosomes
Cholecystokinin
29. Occurs within the cell - usually in membrane-bound vesicles
Arthropods
Pepsinogen
Intracellular Digestion
Pancreas
30. Food is moved down the esophagus by this rhythmic waves of involuntary muscular contraction
Peristalsis
Mechanical Digestion
Large Intestine
Venus flytrap
31. Produced by the pancreas for protein digestion
Lysosomes
Gizzard (in annelids)
Saliva
Trypsin
32. Converted to pepsin and synthesized by chief cells
Pepsinogen
Intrinsic factor
Mechanical Digestion
Intracellular Digestion
33. Biting and chewing action of teeth
Mastication
Tentacles
Rhizoids
Lysosomes
34. Can occur after spontaneous transient lower esophageal sphincter relaxations not associated with swallowing
GERD
Lipase
Mastication
Salivary Amylase (ptyalin)
35. Improve food digestion
Salivary Glands
Extracellular Digestion
Lysosomes
Esophagus
36. Begins with oral cavity and continues with the pharynx - the esophagus - stomach - small inestine - large intestive - then anus
Saliva
Human Digestive Tract
Chyme
Parietal Cell
37. When nutrients are required for plants - the storage polymers are broken down to simpler molecules by enzyme hydrolysis
Parietal Cell
Intracellular Digestion
Chemical Breakdown
Heterotrophic
38. Fuse with the food vacuole and release their digestive enzymes that act upon the nutrients
Lysosomes
Heterotrophic
Lipase
Salivary Amylase (ptyalin)
39. Accomplished by enzymatic hydrolysis -nutrients pass through the semipermeable plasma membrane of the gut cells to be further metabolized or transported
Chemical Breakdown
Lactose-Intolerant
Phagocytosis
Venus flytrap
40. 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
Rectum
Pepsi
GERD
Disacchaidases
41. Enzyme in saliva which hydrolyzes starch to maltose
Salivary Amylase (ptyalin)
Venus flytrap
Stomach
Arthropods
42. Emulsifies fats - breaking down large globules into small droplets (contains no enzymes)
Bile
Tentacles
Salivary Glands
Liver
43. An acidic - semifluid mixture of partially digested food produced from the churning of the stomach
Chyme
Intracellular Digestion
Trypsin
Digestion
44. Produced by the pancreas for fat digestion
Lipase
Esophagus
Intrinsic factor
Intestine (in annelids)
45. Contains a typholosole to provide increased surface area for digestiona nd absorption
Gizzard (in annelids)
Lactose-Intolerant
Intestine (in annelids)
Lacteals
46. Refers to a digestive process that occurs outside of the cell - within a lumen or tract
Lipase
Disacchaidases
Extracellular Digestion
Digestion
47. Lacking lactase enzyme
Lactose-Intolerant
Peristalsis
Endodermal Cells
Mastication
48. (Insects) have a digestive system similar to that of the earthworm
Arthropods
Cnidarians/ Hydras
GERD
Lactase
49. Secretion of the parietal cells that facilitates the absorption of vitamin b12 across the intestinal lining
Intrinsic factor
Cnidarians/ Hydras
Lacteals
Heterotrophic
50. Degradation of large molecules into smaller molecules that can be absorbed into the bloodstream and used directly by cells
Amylase
Digestion
GERD
Annelids/Earthworms