Selina Solutions for Class 9 Biology Chapter 2 - Cell: The Unit Of life

BYJU’S Selina solutions for class 9 is here, serving as a one-stop-shop for all the questions provided in the textbook prescribed by the board. ICSE Class 9 textbook is written strictly in accordance with the latest syllabus prescribed by the C.I.S.C.E for the current academic year.

The Selina solutions are framed by the expert’s team having extensive knowledge in the field of biology, thereby understanding the level of students and hence laying out the solutions.

Use of comprehensible terms while not diverging from textbook terminologies has also been taking into consideration so as to learn concepts without any inconvenience. Solving selina solutions would enable students to score high marks in the examination. It can be used both while learning concepts as well as preparing for examinations.

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Selina Solutions For Class 9 Biology Chapter 2 Cell The Unit Of Life part 01
Selina Solutions For Class 9 Biology Chapter 2 Cell The Unit Of Life part 02
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Selina Solutions for class 9 Biology Chapter 2 – Cell: The Unit Of Life

ICSE Class 9 Biology Chapter 2 – Cell: The Unit Of Life is categorized under Unit-1: Basic Biology. The unit-1 majorly gives an insight into the fundamentals of biology. In this chapter, the building block of life, the cell is discussed in detail.

The paper carries 80 marks with a total duration of 2 hours. The remaining 20 marks are allotted to Internal Assessment of Practical work. The question paper in turn is split into two sections:

  • Section I – 40 marks
  • Section II – 40 marks

The chapter, in particular, is a basic concept hence requires the attention of the students in order to understand other bridging concepts. Students, every academic year observe questions appearing from this chapter in the examination which can either be of MCQ, short type or long type of questions.

List of subtopics covered in Chapter 2 – Cell: The Unit Of Life

Number

Subtopic

2.1

What is a cell?

2.2

The invention of the microscope and the discovery of cell

2.3

Cell theory

2.4

Cells: How numerous?

2.5

Cells – How small?

2.6

Smallness of cells: A greater efficiency

2.7

Cell shapes – To suit functional requirement

2.8.1

Cell membrane and cell wall

2.8.2

Cytoplasm

2.9

The Plant and animal cells

2.10

Protoplasm

2.11

Prokaryotic and eukaryotic cells

2.12

Every activity of a living organism is the outcome of cellular activity

List of Exercise

Name of the exercise

Number of questions

Question Type

Page number

Progress Check

2

short

8

Progress Check

2

short

11

Progress Check

5

4 Short + 1 long

18 & 19

Progress Check

5

short

20

Review questions

6

MCQ

21

6 + 6

short

21 & 22

6

long

22

Selina Solutions for class 9 Biology Chapter 2 – Cell: The Unit Of life

The chapter presents ‘cell’ in detail. It discusses about protoplasm, the fundamental difference between the prokaryotic and eukaryotic cell and gives an idea of differentiation between plant and animal cell.

To understand the structure and functionality of cells, the microscope was invented. This chapter also sheds light on the different types of microscopes that can be used to study a cell. The history of cell theory is also highlighted to help students understand the background of the concept.

Overall, the cell structure along with different cell organelles and their functions/role in plant and animal cells can be studied here.

Key Features of Selina Solutions for class 9 Biology Chapter 1 – Introducing Biology

  • Selina solutions equip students to prepare for the class 9 examinations hassle-free.
  • Solutions align with the textbook
  • Use of tables wherever required
  • Pointers are used which promotes easy learning
  • MCQs are answered with justifications
  • Diagrams are used wherever necessary to help understand the solution better.

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