Selina Solutions for Class 9 Biology Chapter 11 - Digestive System

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Selina Solutions for class 9 Biology Chapter 11 – Digestive System

ICSE Class 9 Biology Chapter 11 – Digestive System chapter is classified under Unit – V – Human anatomy and physiology. This unit outlines the general parts of the body. Human anatomy is the study of the body’s structures. Some are microscopic in nature while some others are large enough to b analyzed and examined. Studying the different body structures enables us to understand the physiology and the various functions each part performs.

This chapter discusses the different parts of the digestive system right from the buccal cavity until the anus, various parts and their functionalities.

The different types of questions that are covered in this chapter are:

  • Multiple-choice questions
  • Fill in the missing blanks
  • Short answer type questions
  • Long answer type questions
  • Application/Structured type of questions

List of subtopics covered in Chapter 11 – Digestive System

Number

Subtopic

11.1

Need for Digestive System

11.2

The Digestive system

11.2.1

The Mouth

11.2.2

The teeth – definition

11.2.3

Structure of a tooth

11.2.4

The Salivary gland

11.2.5

Swallowing and peristalsis

11.2.6

Oesophagus

11.2.7

Stomach

11.2.8

The Small Intestine

11.2.9

The Large Intestine

11.3

Assimilation of Food

11.4

Liver

11.5

Certain experiments on Digestion

11.6

Practical work on food tests

List of Exercise

Name of the exercise

Number of questions

Question Type

Page number

Progress Check

10

short

107,109,112,

113,114

Review questions

4

MCQ

115

11

short

115

13

long

115,116

Selina Solutions for class 9 Biology Chapter 11 – Digestive System

The chapter gives importance to the different parts of the digestive system, its significance and the various functionalities. It also discusses the significance and need for digestive system, the parts such as –

  • Teeth/structure of a tooth
  • Salivary glands
  • Oesophagus
  • Stomach
  • Small intestine
  • Large intestine
  • Liver

It also provides information on different tests carried out to detect the presence of different nutrients such as starch, proteins, glucose etc. These are tests for different foods like iodine test for starch, Fehling’s test for glucose etc.

Key Features of Selina Solutions for class 9 Biology Chapter 11 – Digestive System

  • Selina solution is a tool that is free and readily accessible
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  • Solutions are presented to the point and formulated in accordance with the information provided in the textbook
  • Use of diagrams to explain concepts
  • Explanation provided to the true/false statements

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