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