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