Bacteria and yeast

A single bacterium

Difference between animal and plant cells Look at your bacterium How many differences can you see between animal/plant cells and a bacterial cell? List the similarities and differences Bacteria are prokaryotes

Yeast cells What do they look like? What do we know about yeast?

Yeast cells Yeast cells are traditionally used in baking and brewing. This is because yeast can respire anaerobically in a process called fermentation Yeast will respire aerobically if they have enough oxygen Yeast cells reproduce asexually by a process called budding

What is the yeast doing? Why is fermentation useful? carbon dioxide glucose carbon dioxide ethanol energy This is called fermentation Why is fermentation useful?