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