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Download PDF of Selina Solutions for Class 9 Biology Chapter 11 – Digestive System
Access Answers of Biology Selina class 9 Chapter 11 – Digestive System
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
- Solutions are clear and logical with the use of comprehensible terminologies
- 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
