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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. Which nutrient begins its digestion in the mouth?

Vitamins

Carbohydrates

Proteins

Fats

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

Ileum

Cecum

Jejunum

Duodenum

3. What is the function of the enzyme maltase?

Breaks down lipids

Converts maltose into glucose

Converts proteins into peptides

Emulsifies fats

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

Small intestine

Pancreas

Stomach

Liver

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

Fatty acids

Vitamins

Amino acids

Glucose

6. What is the main role of the gallbladder?

Digest carbohydrates

Store and concentrate bile

Absorb nutrients

Produce insulin

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

Lipase

Pepsin

Trypsin

Amylase

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

Esophagus

Pharynx

Trachea

Larynx

9. Where is the enzyme pepsin active?

Small intestine

Stomach

Large intestine

Mouth

10. Where does most protein digestion take place?

Small intestine

Mouth

Large intestine

Stomach

11. What is the end product of carbohydrate digestion?

Glycerol

Amino acids

Fatty acids

Glucose

12. Which structure connects the mouth to the esophagus?

Trachea

Uvula

Pharynx

Larynx

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

Rectum

Anus

Cecum

Sigmoid colon

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

Stomach

Liver

Pancreas

Kidney

15. Which structure absorbs water and forms feces?

Pancreas

Small intestine

Large intestine

Stomach

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

Bile

Insulin

Hydrochloric acid

Sodium bicarbonate

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

Feces

Mucus

Bile

Chyme

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

No known essential function

Produces enzymes

Absorbs water

Stores bile

19. What is the function of the rectum?

Store feces before elimination

Mix food with enzymes

Produce bile

Absorb nutrients

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

Lubricates and protects the lining

Absorbs nutrients

Neutralizes acid

Breaks down food

21. What is the function of bile in digestion?

Absorbs vitamins

Emulsifies fats

Breaks proteins

Neutralizes stomach acid

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

Stomach

Small intestine

Liver

Large intestine

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

Fiber

Vitamins

Water

Fats

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

Trypsin

Pepsin

Amylase

Lipase

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

Move food forward

Absorb nutrients

Protect the walls

Produce enzymes

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26. Which hormone stimulates the release of gastric juice?

Gastrin

Glucagon

Insulin

Secretin

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

Neutralizes stomach acid in the small intestine

Breaks down protein

Activates enzymes

Produces bile

28. What causes the acidic pH in the stomach?

Gastric mucus

Bile

Hydrochloric acid

Sodium bicarbonate

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

Uvula

Larynx

Epiglottis

Tonsils

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

Absorb water

Produce insulin

Break down food with acid and enzymes

Store bile

31. What type of digestion occurs in the mouth?

Absorptive

Only mechanical

Mechanical and chemical

Only chemical

32. Which organ produces insulin and digestive enzymes?

Gallbladder

Liver

Pancreas

Appendix

33. What is the role of the enzyme sucrase?

Converts sucrose into glucose and fructose

Breaks down starch

Breaks down protein

Emulsifies fat

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

Both endocrine and exocrine

Digestive organ only

Endocrine gland only

Exocrine gland only

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

Maltase

Amylase

Trypsin

Pepsin

36. Which gland produces saliva?

Thyroid

Adrenal

Pituitary

Parotid

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

Alveoli

Rugae

Villi

Microvilli

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

Rectum

Small intestine

Stomach

Esophagus

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

Small intestine

Esophagus

Large intestine

Stomach

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

Absorption

Peristalsis

Diffusion

Digestion

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

Esophagus

Small intestine

Colon

Liver

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

Liver

Stomach

Pancreas

Gallbladder

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

Presence of starch

Acid in the stomach

High blood sugar

Presence of fats in the small intestine

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

Mixes food mechanically

Stores bile

Absorbs nutrients

Produces digestive enzymes

45. What is the function of the enzyme lipase?

Digests fat

Digests starch

Digests protein

Absorbs calcium

46. Which vitamin is absorbed in the large intestine?

Vitamin D

Vitamin B12

Vitamin C

Vitamin K

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

Proteins

Carbohydrates

All of the above

None of the above

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

Produces bile

Stores undigested food

Produces digestive enzymes

Absorbs nutrients

49. Which enzyme digests proteins in the stomach?

Maltase

Lipase

Amylase

Pepsin

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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

Uncategorized

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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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