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Digestion and Absorption MCQs: Mastering the topic of Digestion and Absorption in Class 11 Biology is crucial for excelling in both CBSE exams and competitive exams like NEET. MCQs on Digestion and Absorption provide an excellent way to assess and strengthen conceptual understanding. These questions cover essential concepts like the human digestive system, enzymes, absorption of nutrients, and the role of accessory glands.
Practicing these MCQs not only enhances problem-solving skills but also helps in improving speed and accuracy. For CBSE students, focusing on NCERT-based MCQs on Digestion and Absorption ensures better clarity on the fundamentals while building a strong foundation for higher-level biology concepts.
Also Check: Absorption of Digested Food
Digestion and Absorption MCQs
Digestion and Absorption is a crucial chapter in Class 11 Biology that explores the process of breaking down complex food molecules into simpler forms and their subsequent absorption into the bloodstream. It involves key topics such as the structure and functions of the digestive system, digestive enzymes, the role of accessory organs, nutrient absorption, and disorders related to digestion. Practicing MCQs on Digestion and Absorption is an effective way to reinforce these concepts, enhance retention, and prepare for exams like CBSE and NEET. These NEET MCQs cover essential areas, test problem-solving abilities, and ensure a thorough understanding of the subject, helping students achieve better academic performance.
CBSE Class 11 Biology Digestion and Absorption MCQs with Answers
1. Which enzyme is responsible for the hydrolysis of starch into maltose?
a) Pepsin
b) Amylase
c) Lipase
d) Trypsin
Answer: b) Amylase
2. What is the primary site for protein digestion in the human body?
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: b) Stomach
3. Which part of the digestive system absorbs the maximum amount of water?
a) Stomach
b) Small intestine
c) Large intestine
d) Rectum
Answer: c) Large intestine
4. The enzyme lipase acts on which type of molecule?
a) Carbohydrates
b) Proteins
c) Lipids
d) Nucleic acids
Answer: c) Lipids
5. What is the role of bile in digestion?
a) Breakdown of proteins
b) Emulsification of fats
c) Hydrolysis of starch
d) Activation of pepsin
Answer: b) Emulsification of fats
6. Which cell type in the stomach secretes hydrochloric acid?
a) Chief cells
b) Parietal cells
c) Goblet cells
d) Beta cells
Answer: b) Parietal cells
7. Which vitamin is absorbed in the ileum with the help of intrinsic factor?
a) Vitamin B6
b) Vitamin B12
c) Vitamin C
d) Vitamin D
Answer: b) Vitamin B12
8. What is the function of enterokinase in the small intestine?
a) Activates trypsinogen to trypsin
b) Digests starch
c) Converts lipase into its active form
d) Emulsifies fats
Answer: a) Activates trypsinogen to trypsin
9. Pancreatic juice does not contain which of the following enzymes?
a) Amylase
b) Lipase
c) Pepsin
d) Trypsinogen
Answer: c) Pepsin
10. Which of the following hormones stimulates the release of bile from the gallbladder?
a) Secretin
b) CCK (Cholecystokinin)
c) Gastrin
d) Insulin
Answer: b) CCK (Cholecystokinin)
11. Which monosaccharide is absorbed directly into the bloodstream during carbohydrate digestion?
a) Sucrose
b) Maltose
c) Glucose
d) Cellulose
Answer: c) Glucose
12. Peyer’s patches are found in which part of the digestive system?
a) Stomach
b) Duodenum
c) Ileum
d) Rectum
Answer: c) Ileum
13. The pH of gastric juice in the stomach is approximately:
a) 1.2 – 2.5
b) 5.5 – 6.5
c) 7.0 – 8.0
d) 8.5 – 9.5
Answer: a) 1.2 – 2.5
14. Which of the following is not a proteolytic enzyme?
a) Pepsin
b) Trypsin
c) Rennin
d) Amylase
Answer: d) Amylase
15. What is the function of goblet cells in the intestine?
a) Secretion of mucus
b) Production of enzymes
c) Absorption of water
d) Secretion of bile
Answer: a) Secretion of mucus
16. The brush border in the small intestine is formed by:
a) Goblet cells
b) Microvilli
c) Cilia
d) Parietal cells
Answer: b) Microvilli
17. Which part of the digestive system is responsible for the production of intrinsic factor?
a) Liver
b) Pancreas
c) Stomach
d) Small intestine
Answer: c) Stomach
18. Which of the following ions is most actively absorbed in the small intestine?
a) Calcium
b) Sodium
c) Potassium
d) Chloride
Answer: a) Calcium
19. The digestion of fats begins in the:
a) Mouth
b) Stomach
c) Small intestine
d) Large intestine
Answer: c) Small intestine
20. Which component of bile is responsible for emulsification?
a) Bile salts
b) Bile pigments
c) Cholesterol
d) Water
Answer: a) Bile salts
21. The main site for nutrient absorption is the:
a) Large intestine
b) Small intestine
c) Stomach
d) Esophagus
Answer: b) Small intestine
22. Which hormone inhibits gastric secretion and motility?
a) Gastrin
b) Secretin
c) CCK
d) Somatostatin
Answer: d) Somatostatin
23. Which of the following is a fat-soluble vitamin absorbed in the small intestine?
a) Vitamin B1
b) Vitamin B12
c) Vitamin D
d) Vitamin C
Answer: c) Vitamin D
24. Trypsinogen is activated into trypsin by:
a) Bile salts
b) Hydrochloric acid
c) Enterokinase
d) Pepsin
Answer: c) Enterokinase
25. Which structure prevents food from entering the respiratory tract during swallowing?
a) Larynx
b) Epiglottis
c) Pharynx
d) Uvula
Answer: b) Epiglottis
26. The maximum absorption of digested food occurs in the:
a) Duodenum
b) Jejunum
c) Ileum
d) Large intestine
Answer: c) Ileum
27. The hormone gastrin stimulates the secretion of:
a) Hydrochloric acid
b) Bile
c) Pancreatic enzymes
d) Insulin
Answer: a) Hydrochloric acid
28. Which organ produces bile?
a) Stomach
b) Liver
c) Pancreas
d) Gallbladder
Answer: b) Liver
29. The main function of the large intestine is to:
a) Absorb nutrients
b) Store bile
c) Absorb water and electrolytes
d) Digest fats
Answer: c) Absorb water and electrolytes
30. Which of the following enzymes breaks down disaccharides into monosaccharides?
a) Lipase
b) Maltase
c) Trypsin
d) Amylase
Answer: b) Maltase
Benefits of Solving Digestion and Absorption MCQs
- Improved Conceptual Clarity: Solving Digestion and Absorption MCQs enhances your understanding of critical biological processes, such as enzyme action, nutrient absorption, and digestive system functions. It allows you to connect theoretical concepts with practical applications, strengthening your grasp on the subject.
- Better Retention of Information: Engaging with MCQs on digestion and absorption helps reinforce memory retention. By regularly practicing these questions, students can better remember key concepts like enzymatic breakdown, absorption sites, and nutrient metabolism.
- Enhanced Problem-Solving Skills: MCQs improve critical thinking and problem-solving skills. As you analyze each question carefully, you develop the ability to approach complex digestion and absorption processes logically and efficiently.
- Increased Exam Confidence: Solving high-level MCQs gives you the confidence needed to face the NEET exam. It helps familiarize you with the types of questions that could appear, making you feel more prepared and reducing exam-related anxiety.
- Identifying Knowledge Gaps: By attempting Digestion and Absorption MCQs, you can easily identify areas where your understanding is weak. This allows you to focus your revision efforts on specific topics that need improvement, ensuring better performance on your exams.
- Better Understanding of Digestive Enzymes and Mechanisms: Through MCQs, you can master complex topics such as the functions of digestive enzymes, the role of bile, and the process of nutrient absorption in the small intestine, which are crucial for exams like NEET.
