Bacteria and Viruses

What does a virus have on the inside?

• DNA, but never RNA
• RNA but never DNA
• DNA or RNA
• neither DNA or RNA

What do you need to be able to see bacteria?

• Microscope

• Telescope

• Sunglasses

• 3D Glasses

Where are bacteria located?

• No where.

• Every where!

• Only in the restroom.

• On my hands only.

Tiny single-celled organisms that live almost everywhere

• ribosomes

• cytoplasm

• bacteria

• virus

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Bacteria are prokaryotes, meaning they ________.

• lack a nucleus

• are very large

• contain no DNA

• have a cytoplasm

Tags

NGSS.MS-LS1-1

Which of these statements is true?

• A virus is unicellular, it has only one cell.

• A virus may sometimes be multicellular, have many cells.

• A virus has no cells

Tags

NGSS.MS-LS1-1

Viruses hijack cells to

• Breathe and eat

• Reproduce

• Move and sleep

• Make protein and carbohydrates

Needs host cell to reproduce.

• Virus
• Bacteria
• Fungus
• Protozoan

The purpose of the immune system is used to ....

• a. help germs invade your body

• c. make your nose run

• b. fight off sickness

• d. give your diarrhea

Getting these when you're young helps your immune system fight off diseases ....

• a. stickers

• c. vaccines

• b. bandages

• d. cough drops