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![NCERT solutions for Science [English] Class 9 chapter 5 - The Fundamental Unit of Life - Shaalaa.com](/images/science-english-class-9_6:8626690beaa343fd99329119ec507003.jpg "NCERT solutions for Science [English] Class 9 chapter 5 - The Fundamental Unit of Life")
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Solutions for Chapter 5: The Fundamental Unit of Life
Below listed, you can find solutions for Chapter 5 of CBSE NCERT for Science [English] Class 9.
NCERT solutions for Science [English] Class 9 5 The Fundamental Unit of Life Intext question [Pages 51 - 57]
Who discovered cells and how?
Why is the cell called the structural and functional unit of life?
How do substances like CO2 and water move in and out of the cell? Discuss.
Why is the plasma membrane called a selectively permeable membrane?
Fill in the gaps in the following table, illustrating differences between prokaryotic and eukaryotic cells.
| Prokaryotic cell | Eukaryotic cell | ||
| 1. | Size: generally small (1–10 µm) 1 µm = 10-6 m | 1. | Size: generally large (5-100 µm) |
| 2. | Nuclear region: ____________ ____________ and is known as _____. |
2. | Nuclear region: well defined and surrounded by a nuclear membrane. |
| 3. | Chromosome: single | 3. | More than one chromosome |
| 4. | Membrane-bound cell organelles absent |
4. |
____________ |
Can you name the two organelles we have studied that contain their own genetic material?
If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?
Why are lysosomes known as suicide bags?
Where are proteins synthesized inside the cell?
NCERT solutions for Science [English] Class 9 5 The Fundamental Unit of Life Exercises [Page 59]
Make a comparison and write down ways in which plant cells are different from animal cells.
How is a prokaryotic cell different from a eukaryotic cell?
What would happen if the plasma membrane ruptures or breaks down?
What would happen to the life of a cell if there was no Golgi apparatus?
Which organelle is known as the powerhouse of the cell? Why?
Where do the lipids and proteins constituting the cell membrane get synthesized?
How does an Amoeba obtain its food?
What is osmosis?
Carry out the following osmosis experiment:
Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now,
- Keep cup A empty
- Put one teaspoon of sugar in cup B
- Put one teaspoon salt in cup C
- Put one teaspoon sugar in the boiled potato cup D.
Keep these for two hours. Then, observe the four potato cups and answer the following:
- Explain why water gathers in the hollowed portion of B and C.
- Why is potato A necessary for this experiment?
- Explain why water does not gather in the hollowed-out portions of A and D.
Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?
Solutions for 5: The Fundamental Unit of Life
NCERT solutions for Science [English] Class 9 chapter 5 - The Fundamental Unit of Life
Shaalaa.com has the CBSE Mathematics Science [English] Class 9 CBSE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Science [English] Class 9 CBSE 5 (The Fundamental Unit of Life) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Science [English] Class 9 chapter 5 The Fundamental Unit of Life are Lysosome - “Suicidal Bag”, Structure of the Cell, Plasma Membrane, Cell Wall - “Supporter and Protector”, Nucleus - “Brain” of the Cell, Cytoplasm - “Area of Movement”, Endoplasmic Reticulum (ER), The Invention of the Microscope and the Discovery of Cell, Plastids, Osmotic Pressure, Prokaryotic and Eukaryotic Cell, Cell: Structural and Functional Unit of Life, Cell Theory, Organisms Show Variety in Cell Number, Shape and Size, Simple Diffusion, Concept of Osmosis, Semi-permeable Membrane (Cell Membrane), Golgi Apparatus - "The delivery system of the cell", Mitochondria - “Power House of the Cell”, Non-living Substances Or Cell Inclusion, Plant Cell and Animal Cell, Cell Division: an Essential Life Process, Lysosome - “Suicidal Bag”, Structure of the Cell, Plasma Membrane, Cell Wall - “Supporter and Protector”, Nucleus - “Brain” of the Cell, Cytoplasm - “Area of Movement”, Endoplasmic Reticulum (ER), The Invention of the Microscope and the Discovery of Cell, Plastids, Osmotic Pressure, Prokaryotic and Eukaryotic Cell, Cell: Structural and Functional Unit of Life, Cell Theory, Organisms Show Variety in Cell Number, Shape and Size, Simple Diffusion, Concept of Osmosis, Semi-permeable Membrane (Cell Membrane), Golgi Apparatus - "The delivery system of the cell", Mitochondria - “Power House of the Cell”, Non-living Substances Or Cell Inclusion, Plant Cell and Animal Cell, Cell Division: an Essential Life Process.
Using NCERT Science [English] Class 9 solutions The Fundamental Unit of Life exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE Science [English] Class 9 students prefer NCERT Textbook Solutions to score more in exams.
Get the free view of Chapter 5, The Fundamental Unit of Life Science [English] Class 9 additional questions for Mathematics Science [English] Class 9 CBSE, and you can use Shaalaa.com to keep it handy for your exam preparation.
