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