Lab 2 Microscope And Prokaryotic cells

Question 1

What 2 domains contain prokaryotic cells?

Answer 1

Bacteria and Archaea

Question 2

What are the 3 shapes and names of bacteria?

Answer 2

• coccus (spherical)
• Baccili (rod shaped)
• spirrili (spiral shaped)

Question 3

How do you determine the effectiveness of antibiotics and antiseptics? What is the zone of inhibition? What does it tell you?

Answer 3

• use a petri disc with bacteria and antiseptic
• the zone of inhibition is where bacteria cannot grow
• if the zone is large the treatment is effective

Question 4

What is so special about Cyanobacteria? How did Cyanobacteria change the environment?

Answer 4

• was the first to do photosynthesis and started the oxygen revolution
• eukaryotic photosynthetic cells come from Cyanobacteria, they got their chloroplasts from endosymbiosis

Question 5

Vegetative cells

Answer 5

Do photosynthesis

Question 6

Heterocysts

Answer 6

Did nitrogen fixation

Question 7

Where can archaea live

Answer 7

-extreme