CH-3 Atoms and Molecules Class 9 The Class 9 Science Chapter 2 NCERT answers are all available here. This solution includes all of the material covered in Class 9’s Chapter 2: Is Matter around us Pure NCERT Solutions of Science, including questions, answers, illustrations, and step-by-step instructions. If you are a ninth-grade student studying science using the NCERT Textbook, you have probably encountered Chapter 1: Matter in Our Surroundings. You should be searching for the solutions to the questions after studying the lecture. All of the Class 9 Ch-2 Is Matter around us Pure NCERT Solutions are available right here. You should also refer to the Science class notes for Chapter 2 Is Matter around us Pure NCERT Solutions for a deeper understanding of this chapter.
NCERT Solution The Fundamental Unit of Life Class 9 NCERT Solutions Chapter 3 Intext Questions
NCERT Solution The Fundamental Unit of Life Class 9
Question 1
Who discovered cells, and how ?
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Question 2
Why is the cell called the structural and functional unit of life ?
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NCERT Solution The Fundamental Unit of Life Class 9
Question 1
How do substances like CO2 and water move in and out of the cell? Discuss.
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Question 2
Why is the plasma membrane called a selectively permeable membrane?
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NCERT Solution The Fundamental Unit of Life Class 9
Question 1
Fill in the gaps in the following table illustrating differences between prokaryotic and eukaryotic cells
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NCERT Solution The Fundamental Unit of Life Class 9
Question 1
Can you name the two organelles we have studied that contain their own genetic material?
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Question 2
If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?
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Question 3
Why are lysosomes known as suicide bags?
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Question 4
Where are proteins synthesised inside the cell?
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NCERT Solution The Fundamental Unit of Life Class 9 Exercise Questions (Textbook Chapter End Questions)
NCERT Solution The Fundamental Unit of Life Class 9
Question 1
Make a comparison and write down ways in 2. which plant cells are different from animal cells.
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Question 2
How is a prokaryotic cell different from a eukaryotic cell?
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Question 3
What would happen if the plasma membrane ruptures or breaks down?
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Question 4
What would happen to the life of a cell if there was no Golgi apparatus?
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Question 5
Which organelle is known as the power house of the cell? Why?
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Question 6
Where do the lipids and proteins constituting the cell membrane get synthesised?
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Question 7
How does an Amoeba obtain its food?
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Question 8
What is osmosis?
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Question 9
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
(a) Keep cup A empty
(b) Put one teaspoon sugar in cup B
(c) Put one teaspoon salt in cup C
(d) 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.
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Question 10
Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?
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