CELL THEORY BY PRADEEP SIR

2. What is a cell ??

3. Discovery of Cell

5. • Discovery of living cell- Anton von
leeuwenhoek
Discovery of Nucleus - Robert Brown
Tearm Protoplasm - Purkinje

6. Cell Theory

8. (i) All living organisms are
composed of cells and products of
cells.
(ii) All cells arise from pre-existing
cells.all cells arise from pre-
existing cells.

11. Unicellular and Multiple
cellular Organism?

12. Classification according to shapes and
Sizes

13. Prokyotic cell
Eukaryotic cell

15. Difference Between Plant cell and Animal
cell

17. Plasma membrane
1. Outer most covering of the cell that separates the contents of
the cell from its external environment .
2. Made of Protein and lipid.
3. Selective Permeable membrane.
4. Transfer of gases such as carbon di oxide,Oxygen ,

20. Functions of Plasma membrane

21. Cell wall

22. Nucleus

24. Which one of the following cell organelles
is known as “suicidal bags” of a cell?
(a) Lysosomes
(b) Plastids
• (c) Endoplasmic reticulum
• (d) Mitochondria

25. Which one of the following functions is not
carried out by smooth endoplasmic
reticulum?
(a) Transport of materials
(b) Synthesis of liqid
• (c) Synthesis of protein
• (d) Synthesis of steroid hormone

26. If mitochondria stop working, which
function will not happen in the cell?
a) Reduction of food
b) Oxidation of food
c) Digestion of food
d) Absorption of food

27. Match List I with List II and select the correct
answer using the code given below.

28. Which one of the following is not found
in animal cells?
• (a) Free ribosomes
• (b) Mitochondria
• (c) Nucleolus
• (d) Cell wall

29. The inner membrane of the mitochondria
are folded inwards towards matrix to form:
(a) mesosomes
• (b) cristae
• (c) glyoxysome
• (d) phagosome

30. Prokaryote is
characterized by :
(a) dispersed DNA and lack of membrane bound organelles
(b) absence of nuclear envelope
• (c) absence f nucleolus
• (d) all of the above

31. Which one of the following structures is
not present in a prokaryotic cell
a) Cell wall
b) Nucleus
c) Ribosomes
d) Plasma membrane

32. Which cell organelle is found only in plant
cells?
(a) Cell wall
(b) Plastid
(c) Vacuoles
(d) All the aboves