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