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