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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 role of the enzyme sucrase?

Breaks down protein

Emulsifies fat

Breaks down starch

Converts sucrose into glucose and fructose

2. What is the function of the enzyme lipase?

Digests protein

Digests fat

Digests starch

Absorbs calcium

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

Large intestine

Small intestine

Stomach

Liver

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

Gallbladder

Stomach

Pancreas

Liver

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

Small intestine

Stomach

Rectum

Esophagus

6. Which hormone stimulates the release of gastric juice?

Glucagon

Secretin

Insulin

Gastrin

7. Which structure absorbs water and forms feces?

Large intestine

Small intestine

Pancreas

Stomach

8. What type of digestion occurs in the mouth?

Only mechanical

Mechanical and chemical

Only chemical

Absorptive

9. What is the end product of carbohydrate digestion?

Glucose

Amino acids

Glycerol

Fatty acids

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

Sodium bicarbonate

Bile

Hydrochloric acid

Insulin

11. What causes the acidic pH in the stomach?

Gastric mucus

Sodium bicarbonate

Hydrochloric acid

Bile

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

Epiglottis

Larynx

Tonsils

Uvula

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

Stomach

Liver

Kidney

Pancreas

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

Store bile

Break down food with acid and enzymes

Absorb water

Produce insulin

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

Acid in the stomach

Presence of fats in the small intestine

High blood sugar

Presence of starch

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

Amylase

Pepsin

Trypsin

Maltase

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

None of the above

Carbohydrates

Proteins

All of the above

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

Bile

Feces

Chyme

Mucus

19. Which vitamin is absorbed in the large intestine?

Vitamin K

Vitamin D

Vitamin B12

Vitamin C

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

Liver

Stomach

Small intestine

Pancreas

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

Produces digestive enzymes

Stores undigested food

Absorbs nutrients

Produces bile

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

Exocrine gland only

Both endocrine and exocrine

Digestive organ only

Endocrine gland only

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

Peristalsis

Absorption

Diffusion

Digestion

24. What is the function of the rectum?

Absorb nutrients

Produce bile

Mix food with enzymes

Store feces before elimination

25. Which nutrient begins its digestion in the mouth?

Carbohydrates

Vitamins

Proteins

Fats

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

Produce enzymes

Protect the walls

Absorb nutrients

Move food forward

27. What is the main role of the gallbladder?

Produce insulin

Store and concentrate bile

Absorb nutrients

Digest carbohydrates

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

Stores bile

Absorbs water

Produces enzymes

No known essential function

29. Which structure connects the mouth to the esophagus?

Uvula

Larynx

Pharynx

Trachea

30. Which gland produces saliva?

Pituitary

Adrenal

Parotid

Thyroid

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

Vitamins

Fatty acids

Glucose

Amino acids

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

Water

Vitamins

Fiber

Fats

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

Cecum

Sigmoid colon

Rectum

Anus

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

Esophagus

Small intestine

Colon

Liver

35. Which organ produces insulin and digestive enzymes?

Gallbladder

Pancreas

Appendix

Liver

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

Large intestine

Small intestine

Esophagus

Stomach

37. What is the function of the enzyme maltase?

Converts proteins into peptides

Emulsifies fats

Converts maltose into glucose

Breaks down lipids

38. Which enzyme digests proteins in the stomach?

Pepsin

Lipase

Amylase

Maltase

39. Where is the enzyme pepsin active?

Small intestine

Stomach

Mouth

Large intestine

40. Where does most protein digestion take place?

Mouth

Stomach

Small intestine

Large intestine

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

Rugae

Alveoli

Microvilli

Villi

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

Activates enzymes

Breaks down protein

Produces bile

Neutralizes stomach acid in the small intestine

43. What is the function of bile in digestion?

Emulsifies fats

Absorbs vitamins

Neutralizes stomach acid

Breaks proteins

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

Mixes food mechanically

Stores bile

Absorbs nutrients

Produces digestive enzymes

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

Duodenum

Jejunum

Cecum

Ileum

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

Breaks down food

Absorbs nutrients

Neutralizes acid

Lubricates and protects the lining

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

Amylase

Lipase

Trypsin

Pepsin

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

Pharynx

Larynx

Trachea

Esophagus

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

Pepsin

Lipase

Trypsin

Amylase

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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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Mustansar Khan

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MDCAT Biology Digestion Test

MDCAT Biology Digestion Chaper 14 Online Test

MDCAT Biology Digestion MCQS Online Test

Uncategorized

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Mustansar Khan

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