UNIT 2 MOTILITY ORGANELLES

Question 1

flagella occur in both ends

Answer 1

AMPHITRICHOUS

Question 2

Moves by means of axial filament or axial fibril

Answer 2

SPIROCHETES

Question 3

Long filamentous appendages

Answer 3

FLAGELLA

Question 4

FLAGELLAR STAINS:

Answer 4

● Leifson Stain
● Gray Stain
● Fisher and Conn Stain

Question 5

Polar

Answer 5

MONOTRICHOUS

Question 6

is a small structure located at the base of cilia or flagella,
where microtubule proteins involved in movement originate

Answer 6

BASAL BODY OR KINETOSOMES

Question 7

Sheathed Flagella: seen in

Answer 7

Vibrio

Question 8

PERIPLASMIC FLAGELLA/ ENDOFLAGELLUM:

Answer 8

• Axial Fibril/ Filament
• SPIROCHETES

Question 9

Cork-screw motility

Answer 9

SPIROCHETES

Question 10

flagella occur all around
the bacterium

Answer 10

PERITRICHOUS

Question 11

FIMBRIAE Gram (+) organisms:

Answer 11

○ Actinomyces
○ some Streptococci
○ Corynebacteria

Question 12

flagella multiply in tops at
one end

Answer 12

LOPHOTRICHOUS

Question 13

FLAGELLAR ARRANGEMENT

None

Answer 13

ATRICHOUS

Question 14

types of PILI:

Answer 14

• Common/Somatic Pili/Fimbriae
• Sex Pili

Question 15

similar to flagella except that it is wrapped around the cell

Answer 15

Axial Fibril/ Filament

Question 16

are short projections (3 to 10 μm), usually numerous, that extend from the cell surface and are used for locomotion

Answer 16

CILLIA

Question 17

longer projections (>150 μm) used for locomotion by cells
such as spermatozoa

Answer 17

FLAGELLA

Question 18

E.g. Spirillum organism

Answer 18

AMPHITRICHOUS

Question 19

FLAGELLA 3 parts:

Answer 19

■ Filament
■ Hook
■ Basal body

Question 20

E.g. Cocci

Answer 20

ATRICHOUS

Question 21

FIMBRIAE Gram (-) organisms:

Answer 21

○ Escherichia coli
○ Neisseria
gonorrhoeae
○ Neisseria
meningitidis
○ Pseudomonas
aeruginosa

Question 22

E.g. Pseudomonas
fluorescence

Answer 22

LOPHOTRICHOUS

Question 23

E.g. E. coli, Salmonella
typhi, Proteus

Answer 23

PERITRICHOUS

Question 24

Non-flagellar, proteinaceous, hair-like appendages that adhere some bacterial cells to another cell

Answer 24

PILI

Question 25

2 METHODS TO OBSERVE MOTILITY

Answer 25

• Hanging Drop Method
• Use of Semisolid Media

Question 26

Seen mostly in gram (-) bacilli

Answer 26

FLAGELLA

Question 27

flagellar stain Content

Answer 27

TANNIC ACID

Question 28

They are found in certain protozoa and in ciliated epithelial cells of the respiratory tract

Answer 28

CILLIA

Question 29

pili that is short, acts as a
virulence factor for
attachment

Answer 29

COMMON/ SOMATIC PILI/
FIMBRIAE

Question 30

Hairlike protein structures (2um on length)

Answer 30

PILI

Question 31

E.g. Vibrio;
Campylobacter

Answer 31

MONOTRICHOUS

Question 32

flagellum occurs singly in
one end

Answer 32

MONOTRICHOUS

Question 33

pili For genetic transfer

Answer 33

SEX/CONJUGATION PILI

Question 34

Flagella Protein Composition

Answer 34

Flagellin

Question 35

Nonmotile, long hollow proteins

Answer 35

PILI

Question 36

Flagella that extend from one end of the bacterial cell are

Answer 36

polar

Question 37

flagella Antigen

Answer 37

H Antigen

Question 38

Darting motility

Answer 38

MONOTRICHOUS

Question 39

flagella Motility is best observed at

Answer 39

25 c

Question 40

Exterior protein filaments that rotate and cause bacteria to be
motile

Answer 40

FLAGELLA