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MDCAT Biology Digestion Online Test

Mustansar KhanLast Updated: June 14, 2025

MDCAT Biology Digestion Test

MDCAT Biology Digestion Chaper 14 Online Test

Total Questions:	50
Time Allowed:	25 Minutes
Total Marks:	50
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	MDCAT Entry Test Biology Online Test Interview Questions about Biology All Universities Entrance Test Recruitments Tests

MDCAT Biology Digestion MCQS Online Test

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1. What is the function of the appendix in digestion?

Produces enzymes

Absorbs water

No known essential function

Stores bile

2. Which enzyme is secreted by the pancreas to digest proteins?

Maltase

Trypsin

Amylase

Pepsin

3. What is the function of the enzyme lipase?

Digests fat

Digests protein

Absorbs calcium

Digests starch

4. Which enzyme begins the digestion of starch in the mouth?

Amylase

Pepsin

Trypsin

Lipase

5. What is the role of mucus in the digestive tract?

Lubricates and protects the lining

Neutralizes acid

Absorbs nutrients

Breaks down food

6. What type of digestion occurs in the mouth?

Mechanical and chemical

Only chemical

Absorptive

Only mechanical

7. Where does most protein digestion take place?

Large intestine

Mouth

Stomach

Small intestine

8. Which structure absorbs water and forms feces?

Stomach

Large intestine

Pancreas

Small intestine

9. Which structure connects the mouth to the esophagus?

Trachea

Pharynx

Larynx

Uvula

10. Where is the enzyme pepsin active?

Small intestine

Large intestine

Mouth

Stomach

11. Which hormone stimulates the release of gastric juice?

Gastrin

Glucagon

Secretin

Insulin

12. What is the main role of the gallbladder?

Store and concentrate bile

Digest carbohydrates

Produce insulin

Absorb nutrients

13. What is the function of the villi in the small intestine?

Move food forward

Protect the walls

Produce enzymes

Absorb nutrients

14. Which nutrient begins its digestion in the mouth?

Fats

Proteins

Carbohydrates

Vitamins

15. What triggers the release of bile from the gallbladder?

Acid in the stomach

Presence of starch

High blood sugar

Presence of fats in the small intestine

16. Which organ produces insulin and digestive enzymes?

Gallbladder

Pancreas

Liver

Appendix

17. What is the function of the enzyme maltase?

Breaks down lipids

Converts maltose into glucose

Emulsifies fats

Converts proteins into peptides

18. Which of the following nutrients does NOT begin digestion in the mouth?

None of the above

Proteins

All of the above

Carbohydrates

19. What is the role of the pancreas in digestion?

Absorbs nutrients

Mixes food mechanically

Produces digestive enzymes

Stores bile

20. Which of these organs detoxifies harmful substances in the body?

Stomach

Pancreas

Kidney

Liver

21. Which of the following is the main site for digestion and absorption of nutrients?

Small intestine

Esophagus

Large intestine

Stomach

22. Which nutrient is absorbed into lacteals in the villi?

Fatty acids

Amino acids

Vitamins

Glucose

23. What is the role of sodium bicarbonate in digestion?

Breaks down protein

Activates enzymes

Produces bile

Neutralizes stomach acid in the small intestine

24. What is the role of the enzyme sucrase?

Emulsifies fat

Converts sucrose into glucose and fructose

Breaks down starch

Breaks down protein

25. What is the name of the semi-liquid mixture of food and digestive juices in the stomach?

Feces

Bile

Chyme

Mucus

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26. What is the function of the rectum?

Produce bile

Store feces before elimination

Mix food with enzymes

Absorb nutrients

27. Which gland produces saliva?

Thyroid

Parotid

Adrenal

Pituitary

28. Which enzyme is responsible for protein digestion in the small intestine?

Lipase

Pepsin

Amylase

Trypsin

29. Which part of the digestive system is responsible for mixing food with gastric juice?

Esophagus

Small intestine

Rectum

Stomach

30. Which of the following structures prevents food from entering the windpipe?

Larynx

Uvula

Tonsils

Epiglottis

31. Which of these best describes the liver’s function in digestion?

Produces bile

Stores undigested food

Absorbs nutrients

Produces digestive enzymes

32. What type of gland is the pancreas in terms of digestion?

Digestive organ only

Both endocrine and exocrine

Endocrine gland only

Exocrine gland only

33. Which of the following nutrients is digested mainly by enzymes from the pancreas?

Water

Fats

Vitamins

Fiber

34. What is the term for the rhythmic contractions that move food through the digestive tract?

Peristalsis

Diffusion

Absorption

Digestion

35. What is the end product of carbohydrate digestion?

Glucose

Fatty acids

Amino acids

Glycerol

36. What causes the acidic pH in the stomach?

Sodium bicarbonate

Hydrochloric acid

Bile

Gastric mucus

37. Which part of the digestive system produces hydrochloric acid?

Small intestine

Stomach

Pancreas

Liver

38. Which of the following is an accessory digestive organ?

Colon

Esophagus

Liver

Small intestine

39. Which vitamin is absorbed in the large intestine?

Vitamin K

Vitamin D

Vitamin C

Vitamin B12

40. What are the finger-like projections in the small intestine called?

Alveoli

Rugae

Microvilli

Villi

41. Which part of the digestive tract connects the mouth to the stomach?

Trachea

Pharynx

Esophagus

Larynx

42. Where is bile stored before being released into the small intestine?

Pancreas

Liver

Gallbladder

Stomach

43. Which part of the large intestine connects to the small intestine?

Cecum

Anus

Sigmoid colon

Rectum

44. What is the main function of the stomach in digestion?

Store bile

Produce insulin

Break down food with acid and enzymes

Absorb water

45. What substance in the stomach helps kill bacteria and activate enzymes?

Sodium bicarbonate

Hydrochloric acid

Insulin

Bile

46. What is the function of bile in digestion?

Absorbs vitamins

Emulsifies fats

Breaks proteins

Neutralizes stomach acid

47. Which enzyme digests proteins in the stomach?

Lipase

Maltase

Amylase

Pepsin

48. Which part of the digestive system absorbs most of the water?

Large intestine

Liver

Stomach

Small intestine

49. Which part of the small intestine receives bile and pancreatic juice?

Jejunum

Ileum

Duodenum

Cecum

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Mustansar KhanLast Updated: June 14, 2025

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MDCAT Biology Digestion Online Test

MDCAT Biology Digestion Test

MDCAT Biology Digestion Chaper 14 Online Test

MDCAT Biology Digestion MCQS Online Test

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