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