1. PLANT CELLS
LESSON 4

2. WHAT ARE THE STRUCTURES IN PLANT CELLS?
Cell wall
Cell membrane
Cytoplasm
Chloroplast
Mitochondria
Nucleus
Vacuole
Starch grain/ amyloplast
Ribosomes, rough endoplasmic reticulum and Golgi apparatus

3. REMEMBER THESE PARTS? PART STRUCTURE/ DESCRIPTION FUNCTION
CELL MEMBRANE
a thin semi-permeable membrane that surrounds the cytoplasm
allows certain substances to enter and leave the cell
CYTOPLASM
gel-like substance with water, enzymes and organic molecules
where chemical reactions take place
MITOCHONDRIA
Rod shaped structures, enclosed in a double envelope
Makes energy for the cell
NUCLEUS
Membrane bound structure
Contains cell’s information and instructions for all activities

4. CELL WALL

5. CELL WALL FUNCTION
An outer covering of the cell that protects the plant cell and gives it a shape.
It prevents the plant cell from bursting if the cell becomes filled with water.
The cell wall is the most visible part of the cell when viewed through a microscope

6. CHLOROPLAST

7. CHLOROPLAST FUNCTION CHLOROPLAST STRUCTURE: Convert sunlight to food
Site of photosynthesis – the process whereby light energy is converted to chemical energy of food (glucose)
CHLOROPLAST STRUCTURE:
A green compartment within the plant cells
Has many membranes stacked up like coins on the inside
Holds all the chlorophyll molecules that trap the sunlight

9. VACUOLE IN PLANT CELLS

10. VACUOLE FUNCTION
provides support for the cell - keeping it firm with hydrostatic pressure
Storage of substances like minerals, toxins and water
Plant cells usually have one large, central vacuole, filled with liquid.

11. DIFFERENT VIEWS OF THE SAME PLANT CELL
LIGHT MICROSCOPE
Electron microscope

12. ACTIVITY DRAW YOUR OWN PLANT CELL IN PAINT