Chapter 2 - Is Matter around us Pure
Chapter 3 - Atoms and Molecules
Chapter 4 - Structure of the Atom
Chapter 5 - The Fundamental Unit of Life
Chapter 6 - Tissues
Chapter 7 - Diversity in Living Organisms
Chapter 8 - Motion
Chapter 9 - Force and Laws of Motion
Chapter 10 - Gravitation
Chapter 11 - Work and Energy
Chapter 12 - Sound
Chapter 13 - Why do we fall Ill
Chapter 14 - Natural Resources
Chapter 15 - Improvement in Food Resources
Chapter 5 - The Fundamental Unit of Life
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||Size: generally large (5-100 µm)|
|2.||Nuclear region: ______________and is known as____||Nuclear region: well-defined and surrounded by a nuclear membrane|
|3.||Chromosome: single||More than one chromosome|
|4.||Membrane-bound cell organelles are absent||_______________________________|
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?
Pages 66 - 67
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,
(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:
(i) Explain why water gathers in the hollowed portion of B and C.
(ii) Why is potato A necessary for this experiment?
(iii) Explain why water does not gather in the hollowed out portions of A and D.
Textbook solutions for Class 9
NCERT solutions for Class 9 Science chapter 5 - The Fundamental Unit of Life
NCERT solutions for Class 9 Science chapter 5 (The Fundamental Unit of Life) include all questions with solution and detail explanation from Science Textbook for Class 9. 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 created the CBSE Science Textbook for Class 9 solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in Class 9 Science chapter 5 The Fundamental Unit of Life are Cell Organelles - Plastids, Cell Organelles - Vacuoles, Cell Organelles - Mitochondria, Cell Organelles - Lysosomes, Cell Organelles - Golgi Apparatus, Cell Organelles - Endoplasmic Reticulum (ER), Cell Organelles and Cell Inclusions, Cytoplasm, Nucleus, Cell Wall, Plasma Membrane Or Cell Membrane, Difference Between Prokaryotic and Eukaryotic Cell, Prokaryotic Cell and Eukaryotic Cell, Concept of Cell, Concept of Living Organisms.
Using NCERT solutions for Class 9 Science 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 NCERT Solutions are important questions that can be asked in the final exam. Maximum students of CBSE Class 9 prefer NCERT Textbook Solutions to score more in exam.
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