CBSE Class 9 Science Fundamental Unit of Life Worksheet Set 07

Class 9 Science Practice Set: Chapter 05 The Fundamental Unit of Life

Access printable practice worksheets for Chapter 05 The Fundamental Unit of Life designed to align with the 2026-27 academic syllabus for Class 9 Science. These structured exercises help students evaluate their conceptual understanding and improve exam readiness.

Download Chapter 05 The Fundamental Unit of Life Worksheet PDF

View or download the dedicated Chapter 05 The Fundamental Unit of Life practice resource below. Engaging with these objective and subjective questions daily ensures continuous academic progress and mastery of the 2026-27 curriculum.

Question. The first person to observe a cell under microscope was
(A) M. Schleiden
(B) T. Schwann
(C) Robert Hook
(D) A.V.Leeuwenhoek
Answer : C

Question. Which of the following is the longest cell of animal kingdom?
(A)Bacteria
(B) Nerve cell
(C) Virus
(D) Muscle cell
Answer : B

Question. Plasma membrane is made up of
(A) Proteins and carbohydrates1
(B) Proteins and lipids
(C) Proteins and nucleic acids
(D) Proteins, some nucleic acids and lipids
Answer : B

Question. The word cell was coined by
(A) Robert hooke
(B) Weismann
(C) Cuvier
(D) Darwin
Answer : A

Question. Nucleus discovered by
(A) Robert Hooke
(B) Robert Brown
(C) Dujardin
(D) Purkinje
Answer : B

Question. Plant cell wall is mainly composed of
(A) Sugars
(B) Cellulose
(C) Proteins
(D) lipids
Answer : B

Question. Plasma membrane is –
(A) Impermeable
(B) formed of cellulose
(C) selectively permeable
(D) nonselective
Answer : C

Question. Cell theory was propounded by
(A) Morgan
(B) Halden
(C) Schleiden and Schwann
(D) Robert Hooke
Answer : C

Question. Smallest cells so far known are
(A) Bacteria
(B) blue green algae
(C) PPLOs
(D) human egg
Answer : C

Question. Which one of the following is an example of prokaryotic cell?
(A)Typical plant cell
(B) Typical animal cell
(C) Bacteria
(D) None of these
Answer : C

Question. What is cytology?
(A) Study of cytoplasm
(B) Study of structure and composition of cell
(C) Study of animal cell only
(D) Study of cell only
Answer : B

Question. Ribosome was named by –
(A) Palade
(B) Porter
(C) de Duve
(D) Koliker
Answer : A

Question. Nucleus was discovered of
(A) Robert Brown
(B) Robert Hooke
(C) A.V. Leeuwenhoek
(D) Schwann
Answer : A

Question. A solution is said to be hypotonic when
(A) Concentration of medium is higher than that of the cell
(B) Concentration of medium is equal to that of the cell
(C) Concentration of medium is lower than that of the cell
(D) None of the above are correct.
Answer : C

Question. Cell wall shows
(A) Complete permeability
(B) semipermeability
(C) Differential permeability
(D) impermeability
Answer : A

Question. Ribosome consist of –
(A) DNA and protein
(B) RNA and protein
(C) RNA and amino acids
(D) RNA and DNA
Answer : B

THE FUNDAMENTAL UNIT OF LIFE

1 What is a cell and who discovered?
 
2 Name the three important parts of a typical cell. Give one important function of each of them.
 
3 1. What is the difference between plasma membrane and cell wall?
 
2. Cell membrane is known as “selectively permeable membrane”. Give reason
 
4 Define the following
 
1. Osmosis with an example
 
2. Diffusion with an example
 
3. Plasmolysis
 
5 What will happen if
 
1. A cell contains higher water concentration than the surrounding medium.
 
2. A cell having lower water concentration than the surrounding medium.
 
3. A cell having same water concentration on both the sides.
 
6 Where do the lipids and proteins constituting the cell membrane get synthesized?
 
7 1. What are the functions of chromosomes?
 
2. Where are genes located?
 
3. Write the full form of DNA
 
8 Enumerate the difference between a prokaryotic and Eukaryotic cell.
 
9 1. What is the importance of a nucleus.
 
2. Write one important function of mitochondria.
 
3. Which cell organelle is called “kitchen “ of the cell?
 
10 Describe the structure of a plastid. Name the types of plastids and write the functions of each.
 
11 Why the cell is called the structural and functional unit of life?
 
12 How do substances like CO2 and water move in and out of the cell? Explain
 
13 1. Name two organelles that contain their own genetic material.
 
2. Where are protein synthesized inside the cell?
 
14 What would happen if the plasma membrane ruptures or breaks down?
 
15 Why are lysosomes known as the “suicide bag” of the cell?
 
16 1. Give two examples of the organelles absent in animal cells but are present in plant cells.
 
2. Write one function of each 1. Cell wall 2. ER
 
17 Define the term Endocytosis with an example.
 
18 Why does the skin of your finger shrink when you wash clothes for a long time?
 
19 Draw a well labeled diagram of a prokaryotic cell.
 
20 Draw a well labeled diagram of a typical plant cell.

 

Please click on below link to download CBSE Class 9 Science Fundamental Unit of Life Worksheet Set G

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Download CBSE Practice Material: Class 9 Science Chapter 05 The Fundamental Unit of Life

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FAQs

Where can I download the latest PDF for CBSE Class 9 Science Fundamental Unit of Life Worksheet Set 07?

You can download the teacher-verified PDF for CBSE Class 9 Science Fundamental Unit of Life Worksheet Set 07 from StudiesToday.com. These practice sheets for Class 9 Science are designed as per the latest CBSE academic session.

Are these Science Class 9 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 9 Science Fundamental Unit of Life Worksheet Set 07 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 9.

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Yes, we have provided detailed solutions for CBSE Class 9 Science Fundamental Unit of Life Worksheet Set 07 to help Class 9 and follow the official CBSE marking scheme.

How does solving CBSE Class 9 Science Fundamental Unit of Life Worksheet Set 07 help in exam preparation?

Daily practice with these Science worksheets helps in identifying understanding gaps. It also improves question solving speed and ensures that Class 9 students get more marks in CBSE exams.

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