Bacteria

Question 1

What principle did Woese come up with?

Answer 1

The Tree of Life

Question 2

What are archea known for?

Answer 2

Being adapted to live in extreme conditions

Question 3

Name 3 components that exist inside a bacterial cell

Answer 3

Cell membrane
Cell wall
Cytoplasm

Question 4

Why do we study bacteria?

Answer 4

Evolution
Infection
Food
Antibiotic production

Question 5

Prokaryotes are…

Answer 5

Small unicellular cells with no nucleus or membrane bound organelles, that have a single chromosome made up of circular DNA
Divide by binary fission
Have peptidoglycan on the cell walls
Small ribosomes (70S)

Question 6

Eukaryotes are…

Answer 6

Larger multicellular cells that contain a nucleus and other membrane bound organelles, that have linear DNA/ chromosomes
Divide by mitosis
Have simple cell walls
Large ribosomes (80S)

Question 7

Leeuwenhook is responsible for…

Answer 7

The first microscope

Question 8

Features of Gram Negative bacteria are…

Answer 8

Stain pink
Have a thin layer of peptidoglycan
Have lipopolysaccharides on their outer membrane
Less sensitive to antibiotics

Question 9

Features of Gram Positive bacteria are…

Answer 9

Stain purple
Have a thick layer of peptidoglycan
Have teichoic acids and no outer membrane
Sensitive to beta lactam antibiotics that target the cell wall