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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. 1.5m long -functions in the absorption of salts and the absorption of any water not already absorbed by the small intestine
Mechanical Digestion
Physical Breakdown
Digestion
Large Intestine
2. Improve food digestion
Intestine (in annelids)
Salivary Glands
Annelids/Earthworms
Extracellular Digestion
3. Fuse with the food vacuole and release their digestive enzymes that act upon the nutrients
GERD
Cholecystokinin
Lysosomes
Lipase
4. Pseudopods surround and engulf food and enclose it in food vacuoles
Salivary Amylase (ptyalin)
Rhizoids
Phagocytosis
Extracellular Digestion
5. Vessels of the lymphatic system
Chemical Breakdown
Lacteals
Large Intestine
Chemical Digestion
6. Refers to a digestive process that occurs outside of the cell - within a lumen or tract
Peristalsis
Extracellular Digestion
Rhizoids
Lipase
7. (Insects) have a digestive system similar to that of the earthworm
Gastrin
Arthropods
Amylase
Mucus
8. Enzymes are secreted - hydrolyzing complex nutrients into simpler molecules - which are then absorbed
Peristalsis
Tentacles
Extracellular Digestion
Small Intestine
9. Uses intracellular and extracellular digestion
Stomach
Cnidarians/ Hydras
Trypsin
Villi
10. Patients usually have a decreased lower esophageal reflux pressure - leading to an increased passage of stomach contents into the esophagus
GERD
Trypsin
Arthropods
Pepsi
11. Secreted by the glands of the stomach which protects the stomach lining from the harshly acidic juices present in the stomach
Secretin
Small Intestine
Mucus
GERD
12. The muscular tube leading from the mouth to the stomach
Heterotrophic
Salivary Glands
GERD
Esophagus
13. Unable to synthesize their own nutrients
Tentacles
Mucus
Esophagus
Heterotrophic
14. When nutrients are required for plants - the storage polymers are broken down to simpler molecules by enzyme hydrolysis
Peristalsis
Intracellular Digestion
Pancreas
Intrinsic factor
15. Bring food to the mouth (ingestion) and release the particles intoa cup-like sac
Tentacles
Rhizoids
Secretin
Cholecystokinin
16. Have one way digestive tract with both a mouth and an anus
Rectum
Annelids/Earthworms
Oral Cavity
Stomach
17. Enzymes are secreted to digest the fly and absorb the soluble end products
Small Intestine
Venus flytrap
Intracellular Digestion
Pancreas
18. Secreted from the intestinal mucosa for polypeptide digestion
Human Digestive Tract
Liver
Aminopeptidase
Trypsin
19. Emulsifies fats - breaking down large globules into small droplets (contains no enzymes)
Villi
Bile
Gastrin
Chemical Breakdown
20. Can occur after spontaneous transient lower esophageal sphincter relaxations not associated with swallowing
Disacchaidases
Villi
GERD
Extracellular Digestion
21. Biting and chewing action of teeth
Mastication
Mucus
Extracellular Digestion
Heterotrophic
22. Produces bile in the gall bladder before release into the small intestine
GERD
Large Intestine
Mucus
Liver
23. Refers to the enzymatic breakdown of macromolecules into smaller molecules and begins in the mouth when the salivary glands secrete saliva
GERD
Extracellular Digestion
GERD
Chemical Digestion
24. Secreted from intestinal mucos for digestion of lactose
Gastrin
Intrinsic factor
Mucus
Lactase
25. Degradation of large molecules into smaller molecules that can be absorbed into the bloodstream and used directly by cells
Chyme
Annelids/Earthworms
Digestion
Peristalsis
26. A large - muscular organ located in the upper abdomen - stores and partially digests food
Chyme
Oral Cavity
Stomach
GERD
27. 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
Secretin
Parietal Cell
Human Digestive Tract
Aminopeptidase
28. Occurs within the cell - usually in membrane-bound vesicles
Rhizoids
Extracellular Digestion
Lipase
Intracellular Digestion
29. Completes chemical digestion -divided into three section: duodenum - jejunum - and the ileum -highly adapted to absorption
Parietal Cell
Small Intestine
GERD
Secretin
30. Finger like projections that extend out of the intestinal wall -contain capillaries and lacteals
Mastication
Villi
Lysosomes
Cnidarians/ Hydras
31. Produces enzymes such as amylase - trypsin - lipase
Physical Breakdown
Pancreas
Mastication
Chemical Breakdown
32. Secretion of the parietal cells that facilitates the absorption of vitamin b12 across the intestinal lining
Pancreas
Intrinsic factor
Human Digestive Tract
Heterotrophic
33. Restin pressures of the lower esophageal sphincter normally range from 15-35mmHg above gastric baseline pressure
Arthropods
GERD
Liver
Aminopeptidase
34. Secreted from intestinal mucosa for digestion of maltose - lactose - sucrose
Tentacles
Salivary Glands
Disacchaidases
Lipase
35. Produced and stored in the I cells of the duodenal and jejunal mucosa
Disacchaidases
Salivary Amylase (ptyalin)
Stomach
Cholecystokinin
36. Provides for transient storage of feces before elimination through the anus
Rectum
Digestion
Physical Breakdown
Rhizoids
37. 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
Tentacles
Cnidarians/ Hydras
Lactase
Pepsi
38. Enzyme in saliva which hydrolyzes starch to maltose
Trypsin
Mechanical Digestion
GERD
Salivary Amylase (ptyalin)
39. Produced by the pancreas for protein digestion
Rectum
Rhizoids
Human Digestive Tract
Trypsin
40. To grind the food
Peristalsis
Lipase
Lactose-Intolerant
Gizzard (in annelids)
41. Secretes two substances: intrinsic factor and hydrchloric acid
Amylase
Large Intestine
Parietal Cell
GERD
42. 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
Saliva
Villi
Cnidarians/ Hydras
Rectum
43. The breakdown of large food particles into smaller particles through mastication
Extracellular Digestion
Mechanical Digestion
Venus flytrap
Heterotrophic
44. Stimulates the parietal cells to produce a substance (HCl) that denatures proteins and activates digestive enzymes
Mastication
Villi
GERD
Gastrin
45. Begins with oral cavity and continues with the pharynx - the esophagus - stomach - small inestine - large intestive - then anus
Tentacles
Lactose-Intolerant
GERD
Human Digestive Tract
46. Line the gastrovascular cavity secrete enzymes into the cavity
GERD
Cnidarians/ Hydras
Stomach
Endodermal Cells
47. Converted to pepsin and synthesized by chief cells
Villi
Gizzard (in annelids)
Physical Breakdown
Pepsinogen
48. Where mechanical and chemical digestion of food begins
Chemical Digestion
Oral Cavity
Bile
Phagocytosis
49. Produced by the pancreas for fat digestion
Villi
Lipase
Pepsinogen
Intracellular Digestion
50. Accomplished by enzymatic hydrolysis -nutrients pass through the semipermeable plasma membrane of the gut cells to be further metabolized or transported
Physical Breakdown
Lipase
Cnidarians/ Hydras
Chemical Breakdown