What is a Cell Made Up of? What is the Structural Organisation of a Cell?
What is a Cell Made Up of? What is the Structural Organisation of a Cell?: Overview
This topic describes the composition of a cell and explains its structural organization in detail. It details the significance of plasma membrane, cell wall and cytoplasm.
Important Questions on What is a Cell Made Up of? What is the Structural Organisation of a Cell?
Where are proteins synthesised inside the cell?
Why are lysosomes known as suicide bags?
If the organisation of a cell is destroyed due to some physical or chemical influence, what will happen?
Can you name the two organelles we have studied that contain their own genetic material?
Why is the plasma membrane called a selectively permeable membrane?
How do substances like CO2 and water move in and out of the cell? Discuss.
Which type of cell division is required for growth and repair of body and which type is involved in formation of gametes?
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.
What is osmosis?
Where do the lipids and proteins constituting the cell membrane get synthesised?
Which organelle is known as the powerhouse of the cell? Why?
What would happen to the life of a cell if there was no Golgi apparatus?
What would happen if the plasma membrane ruptures or breaks down?
