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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. Enzymes are secreted - hydrolyzing complex nutrients into simpler molecules - which are then absorbed
Extracellular Digestion
Esophagus
GERD
Large Intestine
2. Contains a typholosole to provide increased surface area for digestiona nd absorption
Large Intestine
Intestine (in annelids)
Salivary Glands
Lysosomes
3. 1.5m long -functions in the absorption of salts and the absorption of any water not already absorbed by the small intestine
Lactose-Intolerant
Small Intestine
Pancreas
Large Intestine
4. Secretes two substances: intrinsic factor and hydrchloric acid
Cholecystokinin
Parietal Cell
Amylase
Extracellular Digestion
5. Secreted from intestinal mucosa for digestion of maltose - lactose - sucrose
Amylase
Lipase
Disacchaidases
Stomach
6. To grind the food
Tentacles
Gizzard (in annelids)
Lacteals
Amylase
7. Secretion of the parietal cells that facilitates the absorption of vitamin b12 across the intestinal lining
Human Digestive Tract
Intrinsic factor
Salivary Amylase (ptyalin)
Venus flytrap
8. The breakdown of large food particles into smaller particles through mastication
Lysosomes
Mastication
Mechanical Digestion
Peristalsis
9. Produces bile in the gall bladder before release into the small intestine
Pepsi
Liver
GERD
Large Intestine
10. Large particles of food into small particles begins by cutting and grinding in the mouth and churning in the digestive tract
Gastrin
Intracellular Digestion
Tentacles
Physical Breakdown
11. Secreted by the glands of the stomach which protects the stomach lining from the harshly acidic juices present in the stomach
Mucus
Secretin
Esophagus
Amylase
12. 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
Liver
Pepsi
Small Intestine
Phagocytosis
13. Secreted from the intestinal mucosa for polypeptide digestion
Aminopeptidase
Human Digestive Tract
Peristalsis
Phagocytosis
14. Produces enzymes such as amylase - trypsin - lipase
GERD
Pancreas
Tentacles
Rhizoids
15. A large - muscular organ located in the upper abdomen - stores and partially digests food
Aminopeptidase
Stomach
Pepsi
Endodermal Cells
16. Stimulates the parietal cells to produce a substance (HCl) that denatures proteins and activates digestive enzymes
Lipase
Endodermal Cells
Gastrin
Salivary Glands
17. Produced by the pancreas to digest carbohydrates
Chyme
Amylase
Rectum
Intestine (in annelids)
18. Provides for transient storage of feces before elimination through the anus
Intrinsic factor
Rectum
Human Digestive Tract
Liver
19. Decreased lower esophageal sphincter pressure is not always associated with the development of GERD; however - the majority of patients
Cnidarians/ Hydras
GERD
Intracellular Digestion
Arthropods
20. Fuse with the food vacuole and release their digestive enzymes that act upon the nutrients
Saliva
Lysosomes
Intracellular Digestion
Heterotrophic
21. Secreted from the intestinal mucosa for fat digestion
Peristalsis
Lipase
Human Digestive Tract
Heterotrophic
22. Refers to a digestive process that occurs outside of the cell - within a lumen or tract
Gastrin
Extracellular Digestion
Endodermal Cells
GERD
23. Refers to the enzymatic breakdown of macromolecules into smaller molecules and begins in the mouth when the salivary glands secrete saliva
Lipase
Chemical Digestion
Intracellular Digestion
Large Intestine
24. Completes chemical digestion -divided into three section: duodenum - jejunum - and the ileum -highly adapted to absorption
Human Digestive Tract
Small Intestine
Mucus
Rectum
25. When nutrients are required for plants - the storage polymers are broken down to simpler molecules by enzyme hydrolysis
Salivary Amylase (ptyalin)
Lipase
Intracellular Digestion
Chyme
26. Line the gastrovascular cavity secrete enzymes into the cavity
Intrinsic factor
Chemical Digestion
Lactose-Intolerant
Endodermal Cells
27. Unable to synthesize their own nutrients
Villi
Heterotrophic
Gastrin
Aminopeptidase
28. Occurs within the cell - usually in membrane-bound vesicles
Stomach
GERD
Liver
Intracellular Digestion
29. Patients usually have a decreased lower esophageal reflux pressure - leading to an increased passage of stomach contents into the esophagus
Large Intestine
Rhizoids
Salivary Glands
GERD
30. Improve food digestion
Large Intestine
Aminopeptidase
Salivary Glands
Oral Cavity
31. Converted to pepsin and synthesized by chief cells
Arthropods
Venus flytrap
Pepsinogen
Tentacles
32. Pseudopods surround and engulf food and enclose it in food vacuoles
Small Intestine
Phagocytosis
Heterotrophic
Villi
33. The muscular tube leading from the mouth to the stomach
Esophagus
Trypsin
Venus flytrap
Mucus
34. Enzymes are secreted to digest the fly and absorb the soluble end products
Extracellular Digestion
Villi
Intrinsic factor
Venus flytrap
35. Where mechanical and chemical digestion of food begins
GERD
Human Digestive Tract
Pepsinogen
Oral Cavity
36. Finger like projections that extend out of the intestinal wall -contain capillaries and lacteals
Salivary Amylase (ptyalin)
GERD
Villi
Esophagus
37. Begins with oral cavity and continues with the pharynx - the esophagus - stomach - small inestine - large intestive - then anus
Human Digestive Tract
Mucus
Chemical Digestion
Salivary Amylase (ptyalin)
38. Have one way digestive tract with both a mouth and an anus
Intestine (in annelids)
GERD
Annelids/Earthworms
Intracellular Digestion
39. Produced by the pancreas for fat digestion
Lipase
Annelids/Earthworms
Heterotrophic
Physical Breakdown
40. Secreted from intestinal mucos for digestion of lactose
Cholecystokinin
Salivary Amylase (ptyalin)
Small Intestine
Lactase
41. Produced by the pancreas for protein digestion
Esophagus
Heterotrophic
Saliva
Trypsin
42. Enzyme in saliva which hydrolyzes starch to maltose
Physical Breakdown
Salivary Amylase (ptyalin)
GERD
Rhizoids
43. Food is moved down the esophagus by this rhythmic waves of involuntary muscular contraction
Lactose-Intolerant
Peristalsis
Stomach
GERD
44. An acidic - semifluid mixture of partially digested food produced from the churning of the stomach
Chemical Breakdown
Stomach
Tentacles
Chyme
45. Place to store food
Crop (in annelids)
Oral Cavity
Cnidarians/ Hydras
GERD
46. Can occur after spontaneous transient lower esophageal sphincter relaxations not associated with swallowing
GERD
Liver
Saliva
Lacteals
47. Bring food to the mouth (ingestion) and release the particles intoa cup-like sac
GERD
Lactose-Intolerant
Intrinsic factor
Tentacles
48. Vessels of the lymphatic system
Mechanical Digestion
Saliva
Lacteals
Stomach
49. Produced and stored in the I cells of the duodenal and jejunal mucosa
Lipase
Cholecystokinin
Saliva
Human Digestive Tract
50. Accomplished by enzymatic hydrolysis -nutrients pass through the semipermeable plasma membrane of the gut cells to be further metabolized or transported
Lipase
Chyme
Chemical Breakdown
GERD