Science - Unicellular Organisms Y8

EOY

Unicellular

An organism made of one cell.

Diffusion

When particles randomly spread and mix with each other without anything moving them.

Kingdoms

The five groups of which all organisms are divided.

Prokaryotes

Unicellular organisms without a nucleus (e.g. bacteria)

Fungi

Organisms which can be multicellular or unicellular, it does not make its own food. Moulds are an example.

Protoctists

Unicellular organisms with a nucleus - some can produce their own food using photosynthesis.

Budding

A type of asexual reproduction in yeast where a new small cell grows out from a parent cell.

Anaerobic respiration in yeast cells

glucose --> carbon dioxide + ethanol

Photosynthesis

Carbon dioxide + water --> glucose + oxygen

Example of a prokaryote

E. coli bacteria

Asexual reproduction in bacteria

Binary fission

A food we use bacteria to make

Yoghurt

Animals, plants, fungi, and protoctists all have…

A nucleus

Sexual reproduction

Two parents combine their genetic material to produce an offspring that is not identical to them.

Asexual reproduction

One parents produces an offspring that is a clone (the same) as the parent.

Fertilisation

Male and female gametes fuse together.

We use _ from fermentation to make bread

Carbon dioxide

We use _ from fermentation to make wine

Ethanol (alcohol)