Microbiology

Question 1

What shape is Cocci bacteria?

Answer 1

Spherical

Question 2

What shape is bacilli bacteria?

Answer 2

Rod shaped

Question 3

What shape is spirilla bacteria?

Answer 3

Spiral shaped

Question 4

What shape is vibrios bacteria?

Answer 4

Comma shaped

Question 5

What shape is spirochetes bacteria?

Answer 5

Corkscrew

Question 6

What colour does gram positive bacteria turn when stained?

Answer 6

Purple

Question 7

What colour does gram negative bacteria turn when stained?

Answer 7

Pink

Question 8

What are obligate pathogens?

Answer 8

pathogens that always cause disease

Question 9

What is saprophytic bacteria?

Answer 9

bacteria that only replicate of dead tissue

Question 10

What is Symbionts bacteria?

Answer 10

Bacteria that provides benefits

Question 11

what bacterias are much smaller than others?

Answer 11

Rickettsias
Mycolasmas
Chlamydias

Question 12

what organelles does a bacteria cell contain?

Answer 12

Cell wall
Both DNA and RNA
Ribosomes

Question 13

What organelles does bacteria not have?

Answer 13

a nucleus

Question 14

What size is bacteria measured in?

Answer 14

Micrometers

Question 15

What size are viruses measured in?

Answer 15

nanometers

Question 16

What would you need to be able to see a virus cell?

Answer 16

and electron microscope

Question 17

What do viruses consist of?

Answer 17

RNA or DNA surrounded by a protein coat

Question 18

What do viruses need to replicate?

Answer 18

a host cell

Question 19

What is the name of the protein coat in a virus?

Answer 19

capsid

Question 20

What name refers to the protein coat and nucleic acid together in a virus?

Answer 20

Necleocapsid

Question 21

What are the shapes of viruses?

Answer 21

Helical, Icosahedral and complex

Question 22

What is true lipid bilayer that sometimes encloses the virus cell called?

Answer 22

Envelope

Question 23

What are some examples of viral diseases in cats?

Answer 23

Feline Leykaemia virus & feline immunodeficiency virus from the retrovirus
Rabies
Feline herpesvirus - Rhinotracheitis
Feline Parvovirus (panleukopenia) caused by feline infectious enteritis
Feline Calicivirus

Question 24

How do bacteria replicate?

Answer 24

Through Binary Fission

Question 25

What is binary fission?

Answer 25

the process where one cell divides to give two identical daughter cells

Question 26

What does Prokaryotic mean?

Answer 26

cells do not have a membrane-bound nucleus

Question 27

What are the stages of binary fission?

Answer 27

``` Bacterial cell prepares to divide Chromosome replicates Septum forms Cytoplasm divides around each chromosome two identical daughter cells are formed cell grows to full size before dividing ```

Question 28

What is the structure of a bacteria cell?

Answer 28

``` Cell wall Plasma membrane Cytoplasm Ribosomes Pili Nucleoid ```

Question 29

What is the plasma membrane in a bacteria cell?

Answer 29

Acts as a permeability barrier for most molecules and serving as the location fro the transport of molecules into the cell

Question 30

What are Pili on the bacteria cell?

Answer 30

Hollow hair like structures made of protein allow bacteria to attach to other cells

Question 31

What is the nuvleoid in a bacteria cell?

Answer 31

the region of the irregularly-shaped section of a prokaryotic cell where DNA is housed

Question 32

What take place in virus replication inside the host cell?

Answer 32

1. the virus attaches to the receptor sites on the host cell membrane and fuses with it 2. the virus enters the host cell and the proton coat breaks down to release the viral nucleic acid. 3. the viral nucleic acid replicates in the host and directs the host cell metabolism to make new virus material. 4. the new virus assembles 5. They leave the host cell by breaking through the cell membrane

Question 33

What are examples of gram-negative bacteria?

Answer 33

Pseudomonas Salmonella E. Coli

Question 34

What are examples of Gram-positive bacteria?

Answer 34

Staphylococcus Streptococcus Colstridium