Year 7 Science · Unit 1 · Lesson 05

Microorganisms

Foundation Worksheet

Name

Date

Class

Learning Goals

Name the four main groups of microorganisms: bacteria, viruses, fungi, and protists.
Identify whether each group is cellular or non-cellular, and whether cells have a nucleus.
Give examples of useful and harmful microorganisms from each group.

Warm Up

Odd one out

Circle the item that does not belong in each group. Then write the odd one out and explain why it doesn't fit in the answer column.

#	Group	Odd one out + reason
1	Bacteria Virus Amoeba Archaea
2	Yeast Penicillium mould Mushroom Salmonella
3	Helpful gut bacteria Bread yeast Plasmodium Cheese-making bacteria

Your Turn

Fill the gap

Choose the correct word from the word bank to complete the passage about viruses. Each word is used only once. Two words in the bank are NOT needed.

host replicate non-cellular protein DNA RNA inject nucleus multicellular

A virus is a particle — it is not made of cells at all. Inside its outer coat, it carries genetic material in the form of either or . Because a virus cannot grow or move on its own, it must find a living cell to inside. To begin this process, the virus can its genetic material into the host cell, hijacking the cell's machinery to make new copies.

Show What You Know

1. State two features that make bacteria different from viruses.

Recall 2 marks

2. Name one useful fungus and explain how humans use it.

Recall 2 marks

Wrap Up

In one sentence, what was the main idea of this lesson?