Growth of Organisms

Growth and Cell Division

Year 8 Science Miss Logan​

​Success Criteria

• Compare unicellular and multicellular organisms

• Recognise that growth is linked to cell division (mitosis)

• Explain the importance of mitosis in living things.

• Describe mitosis as cell division for growth and repair.​

Year 8 Biology 2022​

Unicellular organisms

These single cells ​are complete organisms.

​

This cell carries out ​ALL necessary life processes.

​

Includes both ​eukaryotes and prokaryotes.

Year 8 Biology 2022

​Multicellular organisms

Multicellular organisms contain many different types of cells and each type of cell is specialised. This means that each type of cell has a different job to do in the organism.​

​

ONLY eukaryotes​

​

Year 8 Biology 2022

Multiple Choice

Identify how many cells a unicellular organism has in total

• 1

• many

• 2

• 100

Multiple Choice

Complete the following sentence:

Multicellular organisms contain many different types of cells and each type of cell is

• responsible for ALL necessary life processes.

• p

• specialised.

Open Ended

Compare unicellular and multicellular organisms.

Include an example of each. Minimum of 2 sentences.

​Cell Division

All living things grow by making new cells. This process is called cell division.

​

There are 2 types of cell division:

1. mitosis - process of making new body cells

2. meiosis - process of making gametes

​

Year 8 Biology 2022

​Mitosis

Mitosis is a process where a single cell divides into two identical daughter cells.

​

Mitosis is important in living things for growth and repair.​

Year 8 Biology 2022

Multiple Choice

The acronym used to help remember the stages of mitosis

• MAPT

• PMAT

• PAMT

• PMOT

Multiple Select

The two types of cell division are called

• mytoesis

• mitosis

• mitochondria

• meiosis