Question 1

Plasmids control the following processes in bacteria except:

Accepted Answer

A)   Multiplication
B)   Bacteriocin production
C)   Antibiotic resistance
D)   Toxin production A

Question 2

Bacteria with flagella around the cell is:

Accepted Answer

A)   Monotrichate
B)   Lophotrichate
C)   Peritrichate
D)   Amnhitrichate C

Question 3

The ability of the organism to cause disease:

Accepted Answer

A)   Infectious dose
B)   Pathogenicity
C)   Virulence
D)   Infection B

Question 4

Carriers are dangerous source of infection more than cases because:

Accepted Answer

A)   They have no clinical symptoms
B)   Never shed the organism outside their bodies
C)   The isolated organism is more virulent
D)   All of the above

Question 5

Eukaryotes include:

Accepted Answer

A)   Virus
B)   Bacteria
C)   Fungi
D)   Human cell
E)   Both C, D

Question 6

Genetic information essential for the life of bacteria is a function of:

Accepted Answer

A)   Ribosomes
B)   Plasmid
C)   Mesosomes
D)   Chromosomes

Question 7

The following statements are correct regarding transposons except:

Accepted Answer

A)   Can carry genes that code for antibiotic  r′ r^{\prime} r′ 
B)   Can move from plasmid to another
C)   Transmissible
D)   Autonomously replicate

Question 8

Which of the following bacterial cell possess metachromatic granules

Accepted Answer

A)   Corynebacterium
B)   Clostridium
C)   Mycobacterium
D)   All of these

Question 9

Infectious dose of salmonella is:

Accepted Answer

A)   10
B)   100
C)   100000
D)   1000000

Question 10

Which one of the following best describes the mode of action of endotoxins:

Accepted Answer

A)   Drgrades lecithin in cell membrane
B)   Hypertension
C)   Block release of acetyl choline
D)   Causes the release of tumor necrosis factor

Question 11

Degree of pathogenicity:

Accepted Answer

A)   Virulence
B)   Infection
C)   Transmission
D)   Virulence factors

Question 12

Bacterial cell do not contain:

Accepted Answer

A)   Cell wall
B)   Mitochondria
C)   70 s ribosomes
D)   Mesosomes

Question 13

Exotoxins:

Accepted Answer

A)   Lipoproteins
B)   LPS
C)   Nucleic acid
D)   Proteins
E)   Peptidoglvcan

Question 14

Function of bacterial capsule is:

Accepted Answer

A)   Protection of bacterial cell from phagocytosis
B)   Giving shape and rigidity
C)   Selective permeability
D)   Secretion of hydrolytic enzymes

Question 15

Which of the following type of ribosomes are present in bacteria

Accepted Answer

A)   805
B)   705
C)   Both

Question 16

Sporulation of bacteria occurs in:

Accepted Answer

A)   Log phase
B)   Lag phase
C)   Stationary phase
D)   All of the above

Question 17

Carriers are more serious that a case because:

Accepted Answer

A)   They are confined to bed
B)   They show manifestations
C)   They communicate with public without being noticed
D)   They carry the organism in the epidemic period
E)   All of the above

Question 18

The organism continue to grow with or without producing symptoms

Accepted Answer

A)   Acute infection
B)   Latent infection
C)   2 ry infection
D)   Chronic infection

Question 19

Number of chromosome in bacterium

Accepted Answer

A)   One
B)   Two
C)   Five
D)   Non of these

Question 20

The rigidity and shape of bacteria is due to:

Accepted Answer

A)   Cell membrane
B)   Peptidoglycan layer
C)   Teichoic acid
D)   Capsule

Exam 1: Pathogenesis-Antibiotic-Structure