NCERT Solutions for class 11 Biology Chapter 16 : Digestion and Absorption

NCERT Solutions for Class 11 Biology Chapter 16 Digestion and Absorption are provided in the article below. This chapter 16 comes under Unit V- Human Physiology, which is omitted from CBSE Class 11 Exam 2022-23. It comprises all the important definitions, concepts, and methodologies that will be really beneficial for the students. The important topics that are included in this chapter are:

Alimentary canal and digestive glands, digestive enzymes, and gastrointestinal hormones
Peristalsis
Egestion
Nutritional, digestive disorders and the digestive system

Expected no. of Questions: 1-2 questions of around 2 marks.

Download PDF: NCERT Solutions for Class 11 Biology Chapter 16 Digestion and Absorption

NCERT Solutions for Class 11 Biology Chapter 16

Class 11 Biology Chapter 16 Digestion and Absorption: Important Topics

Digestion is the process of breaking down large insoluble food into soluble food through enzymes which can then be absorbed into the blood. Human Digestive System is the collection of organs that are responsible for digestion. It is a vital process that is driving the human race. The digestive system includes a digestive tract, which connects organs from the mouth to the large intestine.

Alimentary canal and digestive glands

The alimentary canal constitutes the entire passage wherein the ingested food is broken down into its constituents and is absorbed for use by the body. When all the components of the gastrointestinal tract are stretched out, end to end, it roughly measures 30 feet or about 9 meters.

The components of the alimentary canal are as follows:

Oral cavity (Also called the buccal cavity)
Pharynx (plural: pharynges)
Oesophagus
Stomach
Small intestine
Large intestine
Rectum
Anus

Accessory Organs of the Digestive System

There are additional organs and glands, apart from the organs in the gastrointestinal tract, that are not directly a part of the digestive system but they provide crucial functions that aid digestion absorption or break down of food. These are the accessory organs of the digestive system.

Chapter Related Links:

Digestion of food	Absorption of digested products	Disorders of the digestive system
Absorption	Egestion	Gastric
Vestigial Organs	Visceral Fat	Liver Diagram

CBSE Class 11 Biology Study Guides:

CBSE Class 11 Biology Syllabus	CBSE Class 11 Biology NCERT Textbook	CBSE Class 11 Biology Sample Paper
Biology Study Material	Biology MCQs	Difference between in Biology

CBSE CLASS XII Related Questions

1.
Assertion (A) : Hardy-Weinberg principle says that allele frequencies in a population are stable.
Reason (R) : Hardy-Weinberg principle is applicable only when genetic drift does not occur.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
2.
(i) How does a farmer use dormancy of seed to his advantage ?
(ii) Differentiate between pea seed and castor seed.
View Solution
3.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactaglobulin.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
4.
A student performed some crosses in plants and represented the result in the form of bar graphs as shown below. Each graph displays the phenotypic proportion of the progeny. Study the graphs and answer the questions :
(c) What conclusion can you draw from the results of bar graphs of crosses I and II ? Name the genetic principle illustrated.
View Solution
5.
Assertion (A): The embryo with 8 to 16 blastomeres is called a morula.
Reason (R): The morula continues to divide and transform into trophoblast.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false, but Reason (R) is true.
View Solution
6.
Monascus purpureus is a yeast used commercially in the production of which one of the following?
- Ethanol
- Streptokinase
- Citric acid
- Statins
View Solution

View All

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NCERT Solutions for class 11 Biology Chapter 16 : Digestion and Absorption

NCERT Solutions for Class 11 Biology Chapter 16

Class 11 Biology Chapter 16 Digestion and Absorption: Important Topics

Alimentary canal and digestive glands

Accessory Organs of the Digestive System

CBSE CLASS XII Related Questions

1.
Assertion (A) : Hardy-Weinberg principle says that allele frequencies in a population are stable.
Reason (R) : Hardy-Weinberg principle is applicable only when genetic drift does not occur.

2.
(i) How does a farmer use dormancy of seed to his advantage ?
(ii) Differentiate between pea seed and castor seed.

3.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactaglobulin.

5.
Assertion (A): The embryo with 8 to 16 blastomeres is called a morula.
Reason (R): The morula continues to divide and transform into trophoblast.

6.
Monascus purpureus is a yeast used commercially in the production of which one of the following?

Similar Biology Concepts

Comments

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NCERT Solutions for class 11 Biology Chapter 16 : Digestion and Absorption

NCERT Solutions for Class 11 Biology Chapter 16

Class 11 Biology Chapter 16 Digestion and Absorption: Important Topics

Alimentary canal and digestive glands

Accessory Organs of the Digestive System

CBSE CLASS XII Related Questions

1.Assertion (A) : Hardy-Weinberg principle says that allele frequencies in a population are stable.Reason (R) : Hardy-Weinberg principle is applicable only when genetic drift does not occur.

2.(i) How does a farmer use dormancy of seed to his advantage ?(ii) Differentiate between pea seed and castor seed.

3.Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk. Reason (R) : It was human protein enriched milk containing human alpha lactaglobulin.

5.Assertion (A): The embryo with 8 to 16 blastomeres is called a morula. Reason (R): The morula continues to divide and transform into trophoblast.

6.Monascus purpureus is a yeast used commercially in the production of which one of the following?

Similar Biology Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Assertion (A) : Hardy-Weinberg principle says that allele frequencies in a population are stable.
Reason (R) : Hardy-Weinberg principle is applicable only when genetic drift does not occur.

2.
(i) How does a farmer use dormancy of seed to his advantage ?
(ii) Differentiate between pea seed and castor seed.

3.
Assertion (A) : The milk produced by transgenic cow 'Rosie' was nutritionally more balanced product for human babies than natural cow milk.
Reason (R) : It was human protein enriched milk containing human alpha lactaglobulin.

5.
Assertion (A): The embryo with 8 to 16 blastomeres is called a morula.
Reason (R): The morula continues to divide and transform into trophoblast.

6.
Monascus purpureus is a yeast used commercially in the production of which one of the following?