OVERVIEW OF THE CELL

Question 1

What are the main constituents of the cell ?

Answer 1

The main constituents of the cell are

1. The membrane
   a) Plasma membrane
   b) Cell wall
2. Cytoplasm {main area of cellular activities}
   a) Cell organelles
   b) Inclusions (reserve food containing bodies)
   - only found in prokaryotes
3. Nucleus (contains all genetic material)

Question 2

NAME THE SMALLEST CELL.

Answer 2

Mycoplasma or PPLO (pluero pneumonia like organism)

- SIZE = 0.3 micrometer

Question 3

NAME THE LARGEST CELL.

Answer 3

Ostrich egg

Question 4

NAME THE LONGEST CELL.

Answer 4

Neuron

Question 5

What is the size of a bacteria ?

Answer 5

3-5 micrometer

Question 6

What is the size of a typical bacteria ?

Answer 6

1-2 micrometer

Question 7

What is the size of RBCs ?

Answer 7

7 micrometer

Question 8

What is the size of a typical eukaryotic cell ?

Answer 8

10-20 micrometer

Question 9

What is the size of cells present in liver , kidney and intestine ?

Answer 9

20-50 micrometer

Question 10

What is the size of a virus?

Answer 10

0.02-0.2 micrometer

Question 11

LEARN SHAPE AND SIZE OF CELL FROM NCERT

Answer 11

OK :D

Question 12

What are pleomorphic cells ?

Answer 12

Cell having various morphological forms are called pleomorphic cells.
eg - Mycoplasma

Question 13

Why is the mycoplasma called the joker of the plant kingdom ?

Answer 13

It is because in mycoplasma cell wall is absent .