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.
Mention the source and the functions of the above mentioned hormones.
View Solution
2.
Assertion (A): Trichoderma species are free living fungi that are very common in the root ecosystems.
Reason (R): They are effective bio-control agents of several plant pathogens.
- 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
3.
Arrange the following hormones in sequence of their secretion in a pregnant woman : hCG; LH; FSH; Relaxin.
View Solution
4.
The process of copying genetic information from template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.
5.
Explain Gause’s 'Competitive Exclusion Principle' and provide a suitable ecological example that demonstrates this principle in nature.
View Solution
6.
Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.
View Solution

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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.
Mention the source and the functions of the above mentioned hormones.

2.
Assertion (A): Trichoderma species are free living fungi that are very common in the root ecosystems.
Reason (R): They are effective bio-control agents of several plant pathogens.

3.
Arrange the following hormones in sequence of their secretion in a pregnant woman : hCG; LH; FSH; Relaxin.

4.
The process of copying genetic information from template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.

5.
Explain Gause’s 'Competitive Exclusion Principle' and provide a suitable ecological example that demonstrates this principle in nature.

6.
Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.

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.Mention the source and the functions of the above mentioned hormones.

2.Assertion (A): Trichoderma species are free living fungi that are very common in the root ecosystems. Reason (R): They are effective bio-control agents of several plant pathogens.

3.Arrange the following hormones in sequence of their secretion in a pregnant woman : hCG; LH; FSH; Relaxin.

4.The process of copying genetic information from template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.

5.Explain Gause’s 'Competitive Exclusion Principle' and provide a suitable ecological example that demonstrates this principle in nature.

6.Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.

Similar Biology Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Mention the source and the functions of the above mentioned hormones.

2.
Assertion (A): Trichoderma species are free living fungi that are very common in the root ecosystems.
Reason (R): They are effective bio-control agents of several plant pathogens.

3.
Arrange the following hormones in sequence of their secretion in a pregnant woman : hCG; LH; FSH; Relaxin.

4.
The process of copying genetic information from template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.

5.
Explain Gause’s 'Competitive Exclusion Principle' and provide a suitable ecological example that demonstrates this principle in nature.

6.
Work out separate monohybrid crosses up to $F_2$ generation between two pea plants and two Antirrhinum plants, both having contrasting traits with respect to the colour of the flower. Comment on the patterns of inheritance in the crosses carried out in such two cases.