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Frank solutions for Class 9 Biology ICSE chapter 3 - The Cell - A Unit of Life [Latest edition]

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Class 9 Biology ICSE - Shaalaa.com

Chapter 3: The Cell - A Unit of Life

ExcerciseExercise
Excercise, Exercise [Pages 25 - 27]

Frank solutions for Class 9 Biology ICSE Chapter 3 The Cell - A Unit of Life Excercise, Exercise [Pages 25 - 27]

Excercise | Q 1 | Page 25

Justify the statement "cell is the basic unit of life"

Excercise | Q 2 | Page 25

Who proposed the Cell theory? Explain the main points of this theory.

Excercise | Q 3 | Page 25

Define the term cell? Also, describe types of cells.

Excercise | Q 4 | Page 25

Name any five cell organelles.

Excercise | Q 5.1 | Page 25

What was the contribution of the following to our knowledge of cells?
Robert Hooke

Excercise | Q 5.2 | Page 25

What was the contribution of the following to our knowledge of cells?
Virchow

Excercise | Q 5.3 | Page 25

What was the contribution of the following to our knowledge of cells?
Schleiden

Excercise | Q 5.4 | Page 25

What was the contribution of the following to our knowledge of cells?
Schwann

Excercise | Q 6 | Page 25

How will you distinguish cell wall from plasma membrane?

Excercise | Q 7.1 | Page 25

What is the function of the following?
Mitochondria

Excercise | Q 7.2 | Page 25

What is the function of the following?
Ribosomes

Excercise | Q 7.3 | Page 25

What is the function of the following?
 Cell membrane

Exercise | Q 8.1 | Page 26

What are plastids?

Exercise | Q 8.2 | Page 26

Write two main functions of the plastids.

Exercise | Q 9 | Page 26
Why are lysosomes called suicidal bags?
Exercise | Q 10.1 | Page 26

Expand - ER

Exercise | Q 10.2 | Page 26

Expand - SER

Exercise | Q 10.3 | Page 26

Expand - RER

Exercise | Q 11 | Page 26
Why are mitochondria called the powerhouse of the cell?
Exercise | Q 12 | Page 26
"Nucleus is the controller of the cell" - prove this statement.
Exercise | Q 13.1 | Page 26

What is a chromosome?

Exercise | Q 13.2 | Page 26

Describe the structure of the chromosome in brief.

Exercise | Q 14.1 | Page 26

Give one main function of the following:

Chloroplast

Exercise | Q 14.2 | Page 26

Give one main function of the following:

Chromosomes

Exercise | Q 14.3 | Page 26

Give one main function of the following:

Endoplasmic Reticulum

Exercise | Q 15.1 | Page 26

Fill in the blank with a suitable word:

The single-celled alga ______ measures 10 cm in length.

Exercise | Q 15.2 | Page 26

Fill in the blank with a suitable word:

DNA is an abbreviated form of ______.

Exercise | Q 15.3 | Page 26

Fill in the blank with a suitable word:

Cell ______ was proposed by Schleiden and Schwann.

Exercise | Q 15.4 | Page 26

Fill in the blank with a suitable word:

The largest cell in the animal kingdom is that of ______ egg.

Exercise | Q 15.5 | Page 26

Fill in the blank with a suitable word:

______ controls all the metabolic activities of the cell.

Exercise | Q 16 | Page 26

Match the items in column A with the appropriate items in column B:

column A column B
1. Platform or workplace for the synthesis of proteins a. Golgi complex
2. A powerhouse of cells b. Ribosomes
3. Help in the formation of cell plate during cell division c. Chloroplast
4. Site for photosynthesis d. Mitochondria
5. Control tower of cell e. Chromosomes
6. A structure bearing genes f. Nucleus
Exercise | Q 17 | Page 26

Identify the lettered parts of the typical animal cell shown in the following figure.

Exercise | Q 18.1 | Page 26

Who studied the cell first?

Exercise | Q 18.2 | Page 26

 Who says that cell is the biological unit of body structure?

Exercise | Q 18.3 | Page 26

Which is the longest human cell?

Exercise | Q 18.4 | Page 26

Name the longest cell.

Exercise | Q 18.5 | Page 26

Where is energy stored in a cell?

Exercise | Q 18.6 | Page 26

Which is the smallest cell?

Exercise | Q 18.7 | Page 26

What do you mean by prokaryotic cells?

Exercise | Q 19 | Page 27

Identify the lettered parts of the typical plant cell shown in the following figure.

Exercise | Q 20.1 | Page 27

the question has four options. Choose the correct answer:

Cell theory states

  • all cells have a nucleus

  • all cells are living

  • cell reproduces by mitosis and meiosis

  •  cells are functional and structural unit of plants and animals

Exercise | Q 20.2 | Page 27

the question has four options. Choose the correct answer:

Chromosomes are made up of

  • DNA

  • RNA

  • protein

  • by all the above three

Exercise | Q 20.3 | Page 27

the question has four options. Choose the correct answer:

Organelles found in plants only are

  • Golgi bod

  • mitochondria

  • plastid

  • ribosome

Exercise | Q 20.4 | Page 27

the question has four options. Choose the correct answer:

A prokaryotic cell doesn't have

  • nucleus membrane

  •  cell wall

  • cytoplasm

  • plasma membrane

Exercise | Q 20.5 | Page 27

the question has four options. Choose the correct answer:

Mitochondria were first seen by

  • Robert Hooke

  • Altman

  • Coliear

  • Banda

Exercise | Q 20.6 | Page 27

the question has four options. Choose the correct answer:

 The word cell was given by

  • Leeuwenhoek

  • Robert Hooke

  • Flamming

  • Robert Brown

Exercise | Q 20.7 | Page 27

the question has four options. Choose the correct answer:

The cell was discovered by

  • Robert Hooke

  • Darwin

  • Lamarck

  • Khorana

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Chapter 3: The Cell - A Unit of Life

ExcerciseExercise
Class 9 Biology ICSE - Shaalaa.com

Frank solutions for Class 9 Biology ICSE chapter 3 - The Cell - A Unit of Life

Frank solutions for Class 9 Biology ICSE chapter 3 (The Cell - A Unit of Life) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Class 9 Biology ICSE solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Frank textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 9 Biology ICSE chapter 3 The Cell - A Unit of Life are The Invention of the Microscope and the Discovery of Cell, Cell: the Fundamental Unit of Life, Structure of a Cell, Outcome of Some Cellular Activity, Plasma Membrane, Cell Wall - “Supporter and Protector”, Endoplasmic Reticulum (ER), Golgi Apparatus, Cytoplasm - “Area of Movement”, Nucleus - “Brain” of the Cell, Lysosome - “Suicidal Bag”, Mitochondria - “Power House of the Cell”, Plastids, Non-living Substances Or Cell Inclusions, Prokaryotic and Eukaryotic Cell, Cell Theory, Ribosomes, Centrosome and Centrioles, Protoplasm, Difference Between Plant Cell and Animal Cell.

Using Frank Class 9 solutions The Cell - A Unit of Life exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Frank Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 9 prefer Frank Textbook Solutions to score more in exam.

Get the free view of chapter 3 The Cell - A Unit of Life Class 9 extra questions for Class 9 Biology ICSE and can use Shaalaa.com to keep it handy for your exam preparation

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