Chapter 3

Question 1

mycoplasmas

Answer 1

no cell wall, has sterols in membrane

Question 2

mycobacterium tuberculosis

Answer 2

waxy cell wall

Question 3

cyanobacteria

Answer 3

does photosynthesis

Question 4

rickettsiae, chlamydiae

Answer 4

can grow only within living cells

Question 5

fungi

Answer 5

eukaryotes
chitin cell wall
dimorphic: yeasts - unicellular, molds - long chains of cells

Question 6

viruses

Answer 6

smallest microorganism
can replicate only in living cells - ultimate parasite
non-living - can’t reproduce on their own

Question 7

protozoa

Answer 7

single-celled eukaryotes

malaria, sleeping sickness

Question 8

light microscope

Answer 8

bright field
magnifies 1000x
3 lenses - one is oil-immersion lens, necessary for seeing things 1000x

Question 9

dark field microscope

Answer 9

better for seeing thin cells

Question 10

electron microscope

Answer 10

uses beams of electrons instead of light
detail of cells
magnifies 1000s of times

Question 11

scanning electron microscope

Answer 11

view surfaces of cells