Class 11 Biology Digestion and Absorption MCQs with Answers

Class 11 Biology Digestion and Absorption MCQs with Answers offer targeted preparation for Sainik School aspirants, focusing on the intricacies of digestive processes. Tailored to the class 11 biology syllabus, these multiple-choice questions provide clear and concise answers, facilitating effective self-assessment. Digestion and absorption are fundamental to biology, and this resource ensures a comprehensive understanding of these processes.

As students gear up for Sainik School entrance exams, engaging with these MCQs not only enhances exam readiness but also sharpens analytical and critical-thinking skills. The content aligns with the broader goals of Sainik School education, promoting holistic learning and a deeper grasp of biological concepts. Emphasizing clear answers, this resource aids students in identifying areas for improvement, contributing to a well-rounded approach to exam preparation. Sainik School aspirants benefit from a targeted educational experience, preparing them for success in both the entrance exams and future academic pursuits.

Q1. Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting
upon it and the end product?

1. Duodenum: Triglycerides, trypsin monoglycerides.
2. Small intestine: Starch, α amylase disaccharide (maltose).
3. Small intestine: Proteins pepsin amino acids.
4. Stomach: Fats, Lipase micelles.

Q116. Which one of the following pairs of the cells with their secretion is correctly matched?

1. Alpha cells of Islets of Langerhans -Secretion that decreases blood sugar level.
2. Oxyntic cells – A secretion with pH between 2.0 and 3.0.
3. Kupffer cells – A digestive enzyme that hydrolysis nucleic acids.
4. None of these.

Q2. Mark the right statement among the following.

1. Trypsinogen is an inactive enzyme.
2. Trypsinogen is secreted by intestinal mucosa.
3. Enterokinase is secreted by pancreas.
4. Bile contains trypsin.

Q3. Liver is the largest gland and is associated with various functions. Choose which is not correct from the following.

1. Metabolism of carbohydrate.
2. Digestion of fat.
3. Formation of bile.
4. Secretion of hormone called gasotrin.

Q4. Small projections of upper surface of tongue are called.

1. Fimbriae
2. Pilli
3. Papillae
4. Cilia

Q5. One of the factors required for the maturation of erythrocytes is:

1. Vitamin-D
2. Vitamin-A
3. Vitamin-B₁₂
4. Vitamin-C

Q6. The contraction of gall bladder is due to:

1. Gastrin
2. Secretin
3. Cholecystokinin
4. Enterogasterone

Q7. Which enzyme is secreted by the liver?

1. Trypsin.
2. Chymotrypsin.
3. Lipase.
4. No enzyme.

Q8. Emulsification of fat will not occur in the absence of:

1. Lipase.
2. Pigments.
3. Bile salts.
4. Pancreatic juice.

Q9. The enzyme enterokinase helps in the conversionof:

1. Pepsinogen into pepsin.
2. Caseinogen into casein.
3. Trypsinogen into trypsin.
4. Proteins into polypeptides.

Q10. Cholecystokinin is secretion of:

1. Globlet cells of ileum, stimulates secretion of succus entericus.
2. Duodenum that causes contraction of gall bladder.
3. Liver and controls secondary sex characters.
4. Stomach that stimulates pancreas to release juice.

Q11. Which of the following is mismatched?

1. Vitamin-K – Beri-beri.
2. Vitamin-D – Rickets.
3. Vitamin-C – Scurvy.
4. Vitamin-A – Xerophthalmia

Q12. The pH scale is used to measure.

1. Electric charge on ion.
2. Speed with which ions form.
3. Size of ions.
4. Concentration of hydrogen ions in a solution.

Q13. Choose the correct answer among the following:

2. Succus entericus is the name given to
3. A junction between ileum and large intestine.
4. Intestinal juice.
5. Swelling in the gut.
6. Appendix.

Q14. Inhibition of gastric and stimulation of gastric,pancreatic and bile secretions are controlled by hormones.

1. Gastrin, secretin, enterokinin and cholecystokinin.
2. Enterogasterone, gastrin, pancreozymin and cholecystokinin.
3. Gastrin, enterogasterone, cholecystokinin and pancreozymin.
4. Secretin, enterogasterone, gastrin and enterokinin.

Q15. In a person of advanced age, the hair become thinner gradually. It happens because of decrease in:

1. Synthesis of glucose.
2. Synthesis of proteins.
3. Energy availability.
4. Blood supply.