Bacteria

Question 1

Basic shape of bacteria

Answer 1

Coccus
Bacillus
Spirilum
Pheomorphism
Involution
L-forms.

Question 2

Bacteria occur

Answer 2

singly, in chains, clusters, packets, pairs or palisades.

Question 3

Protoplast contains

Answer 3

Cytoplasm; genetic apparatus
(Chromosomes,plasmids), enzymes, ribosomes
Cytochromes, granules or globules Glycogen,poly-beta-hydroxylbutyrate (for storing carbon), cytomembranes, gas
vacoules, mesosomes.

Question 4

Bacteria pigments

Answer 4

▪ Pigment: Carotenoids,Prodigiosins

Question 5

Rigid cell wall of peptidoglycan except in except

Answer 5

Halobacterium and Mycoplasma

Question 6

Bacteria with capsule

Answer 6

Klebsiella Pneumoniae

Question 7

Spore formation seen in

Answer 7

Clostridium spp enteric organisms;

Question 8

Motile bacteria

Answer 8

Enteric organisms; E.coli, Enterobacter spp, Vibrio spp etc.

Question 9

Less than 1 micron;

Answer 9

Chlamydia,Francissella to about 500 microns.
1-10 microns maximum diameter.

Question 10

Identification and classification

Answer 10

Kauffman white scheme.

Question 11

Bacteria antigens

Answer 11

smooth-rough variation.

Question 12

Diseases caused by Bacteria

Answer 12

Anthrax,Braxy, fire blight, Plague, Syphilis, Tetanus,
Tuberculosis and weil

Question 13

Intra cellular bacteria

Answer 13

Rikettsia, anaplasma

Question 14

Transport medium like Stuarts and Hanks is used for

Answer 14

Chlamydia and Enteric organisms

Question 15

Halophile example

Answer 15

V cholera

Question 16

Organism not grown outside living host

Answer 16

Treponema pallidum - Syphilis

Question 17

Types of metabolism

Answer 17

Fermentation or Respiratory
(oxidative) and Anaerobic respectively

Question 18

Reproduction by budding

Answer 18

Winogradskyi

Question 19

Developmental cycle for reproduction

Answer 19

Chlamydia

Question 20

Reproduction with fruiting bodies

Answer 20

MYXOBACTERIALES

Question 21

Preservation methods

Answer 21

◊ Dessication
◊ freezing
◊ freeze-drying
◊ Repeated sub-cultures.

Question 22

Destruction/Inactivation of Bacteria

Answer 22

◊ Sterilization
◊ Ultrasonification with Disinfectants, antibodies,
lyzed by specific antibodies and complement.
◊ Parasitized by Bacteriophage.

Question 23

Organelles of the bacterial cell

Answer 23

• Chlorobium vesicle
• Carboxysome
• Mesosomes
• Flagella
• Pili
• ## Ribosomes

Question 24

Chlorobium vesicles properties

Answer 24

● Oval shaped membraneous vessicles
● Beneath cell membrane.
● House photosynthetic pigments

Question 25

Carboxysomes properties

Answer 25

● Polyhedral bodies.
● Present in blue-green algae
● Purple bacteria
● Nitrifying Bacteria
● Content; ribulose diphosphate
● Site for Co₂ fixation