Bacterias Flashcards
(34 cards)
True cells include the following except
a.fungi
b.viruses
c.bacteria
d.human cell
Viruses
Eukaryotes include
a.virus
b.bacteria
c.fungi
d.both a,c
Fungi
Bacteria cell
a.contain only one type of nucleic acid (either DNA,RNA)
b.contain mitochondria
c.Has one circular chromosome
d. has no cell wall
e. Contain DNA associated with histones
Has one circular chromosome
It is true for bacteria that
a.Have true nucleolus
b. Flagella are responsible for adhesion
c. Capsule is associated with virulence
d.have no cell wall
Capsule is associated with virulence
Prokaryotic cell has no
a.ribosome
b. cell wall
c.mesosome
d.true nucleolus
True nucleolus
Prokaryotes include
a. Fungi
b. Human cell
c. Bacteria
d. Virus
Bacteria
Prokaryote cell is differentiated from Eukaryotic cell by
a.rigid cell wall containing peptidoglcan
b. definite nucleus
c. One chromosome associated with protein
d. containing 80s ribosome
e. Has mitochondria
Rigid cell wall containing peptidoglcan
The bacterial cell multiplies by
a. Binary fission
b. Budding
c. Sexual multiplication
d. Mitosis
Bacteria with no cell wall
a. Actinomycetes
b. Mycoplasma
c. vibrios
Mycoplasma
Cell wall of Gram positive bacteria contains the following except
a. Lipid A
b. teichoic acid
c. Lipoprotein
d. Both a,c
Both a, c
site of protein synthis in bacteria is
a. Ribosome
b. Mesosome
c. chromosome
d. cytoplasmic membrane
Ribosome
Which of the following statement is true regarding flagellum?
a. short,rigid structure
b. Lipopolysaccharide in nature
c. Protein in nature
d. Help in bacterial adherence to host cell
Protein in nature
انواع ال flagella
لو عندي بكتريا ال flagella واحدة من جنب واحد يبقي اسمها monotrichate
لو عندي بكتريا ال flagella كتيرة بس من جنب واحد يبقي اسمها lophotrichate
لو عندي بكتريا ال flagella في كل جنب محوطاها كلها يبقي اسمها peritrichate
لو عندي بكتريا وال flagella من جنب وواحده من الجنب التاني يبقي اسمها Amphitrichate
Flagella
One of the following is not virulent factor?
a. Exotoxin
b. Cell wall peptidoglcan
c. Polysaccharide capsule
d. Endotoxin
e. ordinary pili
Polysaccharide capsule
Which is the following present in the cell wall of Gram negative bacteria but not in Gram positive bacteria?
a. teichoic acid
b. Peptidoglcan
c. Lipid A
d. Phospholipid
Lipid A
The following statement are true regarding cytoplasmic membrane except?
a. Present under the cell wall
b. Polysaccharide in nature
c. Osmotically sensitive
d. Play a role in toxin excretion
e.play a role in respiration
Polysaccharide in nature
Protect the organism from phagocytosis ?
a.capsule
b. spore
c. Flagella
d. Cell wall
Capsule
Mesosome are?
a. Cytoplasmic membrane invagination
b. Cell wall structure
c. intra nuclear structure
d.site of action of antibiotics
Cytoplasmic membrane invagination
Phospholipid bilayer and protein is component of bacterial?
a. Cell wall
b. cytoplasmic membrane
c. Capsule
d. Spore
Cytoplasmic membrane
Function of bacterial capsule?
a. Protection of bacterial from phagocytosis
b. giving shape and rigidity to bacterial cell
c. Secretion of hydrolytic enzyme
d. Contain enzyme responsible for respiration
Protection of bacterial from phagocytosis
Microbial capsule?
a.produced mainly outside host
b. Helps in typing certain bacterial species
c. Protect from un favourable environment conditions
d. Lipid in nature
Helps in typing certain bacterial species
Pili have two function?
a. nutrients uptake and storage
b.loco motion and nutrient uptake
c. Conjugation and adherence
d.Helps in typing bacteria and nutrient uptake
Conjugation and adherence
The cell wall of all bacteria contains?
a. Peptidoglcan
b.lipo polysaccharide layer
c. Periplasmic space
d.teichoic acid
Peptidoglcan
Endotoxin of bacteria is a component of?
a.cell wall of Gram negative bacteria
b.capsule
c.cell membrane of bacteria
d.cell wall of Gram positive bacteria
Cell wall of Gram negative bacteria
