bacteria

Question 1

Louis Pasteur made vaccine for?

Answer 1

Anthrax
Fowl Cholera
Rabies

Question 2

First microbes were reported by?

Answer 2

Anton Wan Leuwenhook

Question 3

Germ theory of disease was formed by?

Answer 3

Robert Koch

Question 4

Slime is made up of

Answer 4

macromolecule

Question 5

slime protects bacteria against

Answer 5

phagocytosis.

Question 6

capsule of bac made up of?

Answer 6

repeating polysaccharide units

Question 7

cell wall also protects bacteria from

Answer 7

osmotic lysis.

Question 8

Cell wall is only absent in

Answer 8

mycoplasmas.

Question 9

Gram-positive bacteria are stained _

Answer 9

purple

Question 10

Gram-negative bacteria are stained _

Answer 10

pink

Question 11

gram + retain ___ dye

Answer 11

primary

Question 12

Gram - retain __ dye

Answer 12

(retain secondary dye) in colour.

Question 13

number of layers in gram +

Answer 13

1

Question 14

number of layers in - bac

Answer 14

2

Question 15

gram + bacteria is made up of

Answer 15

peptidoglycan
teichoic acid
lipoteichoic acid

Question 16

gram - ‘s chemical composition

Answer 16

Lipopolysaccharides
Lipoproteins
Peptidoglycan

Question 17

Outer membrane in gram positive absent or present

Answer 17

absent

Question 18

Outer membrane in gram negative absent or present

Answer 18

present

Question 19

Which is more permeable gram positive or negative?

Answer 19

gram positive is more permeable

Question 20

plasmid are __ ____ dna molecule

Answer 20

circular shaped
double stranded

Question 21

Common waste material of bacteria is?

Answer 21

Alcohol, lactic acid and acetic acid.

Question 22

cell membrane of bacteria lacks?

Answer 22

sterol

Question 23

ribosome of bacteria is formed of

Answer 23

70s subunit

Question 24

flagella originate from?

Answer 24

basal body

Question 25

True pili are only present on

Answer 25

gram-negative bacteria.

Question 26

_ are involved in conjugation

Answer 26

Pilis

Question 27

The cell wall of __ bacteria lacks peptidoglycan

Answer 27

archaebacteria

Question 28

They often contain drug resistant, heavy metals, disease and insect resistant genes on them.

Answer 28

Plasmid

Question 29

Respiratory enzymes are present on?

Answer 29

Mesosomes

Question 30

in photosynthetic autotrophs, the chlorophyll is

Answer 30

dispersed in cytoplasm not in chloroplast

Question 31

spirochete is __ respiratory bacteria

Answer 31

anaerobic

Question 32

e coli is __ resp bacteria

Answer 32

facultive anaerobic

Question 33

pseudomonas is _ respiratory bacteria

Answer 33

aerobic

Question 34

campylobacter is __ resp bacteria

Answer 34

microaerophilic

Question 35

Certain electromagnetic radiations below __ nm are effective in killing of microorganisms.

Answer 35

300

Question 36

__ are in general used for sterilization process.

Answer 36

Gamma rays

Question 37

____ can affect auditory nerve thus causing deafness

Answer 37

streptomycin

Question 38

cause permanent discoloration of teeth in young children.

Answer 38

Tetracycline

Question 39

Which bacterias are considered true prokaryotes?

Answer 39

Cyanobacteria

Question 40

Cyanobacteria use ____ as accessory
pigments

Answer 40

phycobilins

Question 41

Reserve food material in cyanobacteria is

Answer 41

glycogen.

Question 42

What forms water blooms?

Answer 42

Cyanobacteria