Grade 7 - Cells, Functions of Organels

Post on 20-Jun-2015

1.843 views 0 download

Tags:

description

Grade 7 - Cells, Functions of Organels Let's enjoy it!

Transcript of Grade 7 - Cells, Functions of Organels

awan

1

2

3

7

13

12

11

10

9

8

4

5

6

1

2

3

4

7

8

13

12

11

10

9

5

6

14

Organelles

Outer membrane of cell that controls movement in and out of the cell

Double layer

Most commonly found in plant cells & bacteria

Supports & protects plant cells

To control cell activities

Separated from cytoplasm by nuclear membrane

Contains genetic material - DNA

Surrounds nucleus Made of two layers Openings allow

material to enter and leave nucleus

Inside nucleus Contains RNA to build proteins

Gel-like mixture Surrounded by

cell membrane Contains

material for cell metabolism

Moves materials around in cell Smooth ER: lacks ribosomes => the place of fats

synthesis Rough ER : ribosomes embedded in surface => to

transport protein package to other organelles

Each cell contains thousands

The place of protein synthesis

Found on ribosomes & floating throughout the cell

Produces energy through chemical reactions – breaking down fats & carbohydrates

Controls level of water and other materials in cell

Protein 'packaging'

Move materials within and out of the cell

Digestive organelle for proteins, fats, and carbohydrates

Transports undigested material to cell membrane for removal Cell breaks down if lysosome explodes

Membrane-bound sacs for storage, digestion, and waste removal

Contains water solution

Help plants maintain shape

a place to store food reserves

Play a role in cell reproduction

Usually found in plant cells Contains green chlorophyll Where photosynthesis takes place

To control movement in and out of the cell

1

Supports & protects plant cells2

To control cell activities3

Openings allow material to enter and leave nucleus

4

Contains RNA to build proteins 5

Contains material for cell metabolism

6

The place of fats synthesis7

Cell membrane

Cell wall

Nucleus

Nuclear membrane

Nucleolus

Cytoplsm

Smooth ER

To transport protein package to other organelles

8 Rough ER

The place of protein synthesis9

To produce energy10

Move materials within and out of the cell

11

Digestive organelle for proteins, fats, and carbohydrates

12

a place to store food reserves13

Play a role in cell reproduction14

Ribosome

Mitochondrion

Golgi apparatus

Lysosome

Vacuoles

Centrosome

Photosynthesis takes place15

Chloroplast

To control movement in and out of the cell

1

Supports & protects plant cells

2

To control cell activities

3

Openings allow material to enter and leave nucleus

4

Contains RNA to build proteins

5

Contains material for cell metabolism

6

The place of fats synthesis

7

To transport protein package to other organelles

8

The place of protein synthesis

9

To produce energy

10

Move materials within and out of the cell

11

Digestive organelle for proteins, fats, and carbohydrates

12

a place to store food reserves

13

Play a role in cell reproduction

14

Photosynthesis takes place15