Question

QI What is cell?
2State the key features of cell theory?
3 Who saw cells first and when?
4 Why is a cell membrane important to a cell?
5 Name two organelles present in plant cells but not present in an animal cell?
6 What do you mean by protoplasm?
7 What are the building blocks of life? Why are they so-called?
8 differentiate between unicellular and multicellular organisms?
9 give some examples of petrochemicals.
10 What are the substances obtained after the destructive distillation of coal?
11 write two uses of coke.
12 why are gaseous fuels preferred to solid in chemical industries?
13 How CNG is a good fuel than petrol and diesel in vehicles? Expand CNG.
14 Why coal is called fossil fuel?​

Answer 1

Answer:

cell is basic , structural and functional unit of life.

(3) Robert Hooke saw the cell first in 1665

(2) key features of cell theory are given on top :

Answer 2