Unit 1 Cells and Systems

Chapter 1 The cell is the basic unit of life.

1.2 Cells

1.2 Bacteria page 33


There are over 5000 different types of bacteria, or prokaryotic cells. Bacteria are various groups of single celled micro-organisms and can be identified in environments all around the world. Bacteria isn't always harmful, but it can be. It can cause diseases and sicknesses like tuberculosis and strep throat. Most diseases caused by bacteria can be treated by antibiotics, although some (like the "superbug" found in hopitals) are more resistant. In some cases bacteria can be helpful like using them to make food that we eat daily. Helpful bacteria can also produce medicine, like insulin used to treat diabetes. There are many different ways to classify bacteria but they're often grouped by the shape of their cells.
What kinds of cells are bacteria?
Bacteria are prokaryotic cells

Where do bacteria lives in?
They can be found in enviornments all over the world

Can bacteria be harmful and helpful to humans?

What does bacteria cause?
Most bacteria cause diseases

What can the diseases be treated with?

Which bacteria is found in hospitals that causes illness
and is very hard to treat with known antibiotics?
The "superbug"

What does your digestive system depends on?

What can helpful bacteria make?
Foods we eat like yogurt and cheese

What can helpful bacteria produce?
Medicine like insulin

Are there many different ways to classify bacteria?

How are bacteria grouped by?
They're often grouped by shape of their cells

Why are cells colored on diagrams?
They're colored so we can see them better