1. CELLS AS THE BASIC UNIT OF LIFE

2. What is cell? Identify cell as the basic unit of living things
Use a microscope
Identify drawing and labeling general structure of cell
Comparing between animal cells and plant cells
Explain the function of each cell structure

3. INTRODUCTION A cell is the basic unit of a life.
Its size is too small to be seen with the naked eye.
We need an instrument called a microscope to
observe cells.

4. EXAMPLE OF CELL:
Human cheek cell
Onion cell

5. So,how can we see the cell???
We can see it using…….

6. MICROSCOPE

7. The functions of microscope’s parts
Eyepiece
To magnify the image formed by the objective lens
Objective lens
To magnify image of the object
Stage clip
To hold the microscope slide in position
Adjustment knob
To get a sharper focus of the object
Diaphragm
To control the amount of light entering the objective lens
Stage
To support the microscope slide

8. Cell can be divided into 2 types:
Animal cell
Plant cell

9. Similarities and differences of both cells:
Animal Cell
Similarities
Plant Cell
Both cell have:
Cell membrane
Cytoplasm
Nucleus
Animal Cell
Differences
Plant Cell
Has cell wall
Cell wall
None
Definite shape
Shape
Indefinite shape
Usually large vacuole
Vacuole
Usually has no vacuole
Has Chloroplast
Chloroplast

10. Functions of Cell…. CELL STRUCTURES FUNCTIONS Cell Membrane
Controls the movement of materials in
and out of the cell
Cytoplasm
Allows chemical reactions to take place
Nucleus
Controls all cellular activities. It contains
genetic information
Cell Wall
Maintains the shape of the cell
Vacuole
Contains cell sap. Cell sap is a liquid with dissolved substances such as sugar and salt

11. THANK YOU FOR YOUR ATTENTION
THE END
THANK YOU FOR YOUR ATTENTION