Infection: Bacteria and Viruses

[blank_start]Bacteria[blank_end] is an organism that has prokaryotic DNA, and can live in soil, water, plants and animals. A [blank_start]virus[blank_end] has a protein coat, DNA or RNA but no replication machinery. [blank_start]Fungi[blank_end] are eukaryotes that can be unicellular or multicellular and have cell walls that contain chitin. [blank_start]Protozoa[blank_end] are eukaryotic, unicellular and motile. [blank_start]Helminths[blank_end] are worms and eukaryotic parasites.

[blank_start]Pathnogen[blank_end]: Organism capable of causing disease

[blank_start]Commensal[blank_end]: Organism which colonizes the host but causes no disease in normal circumstances

Using the Ziehl neeson stain, the microorganism turns pink. What does this show?

A bacterium turn purple when stained with gram stain, what does this show

Endotoxins are produced from lipopolysacherides of bacterium. Which bacteria has this feature

which bacteria produces exotoxins

antigenicity of endotoxins are strong

Endotoxins can be converted into toxoids

composition of an exotoxin

Types of bacterial gene transfer:

Obligate intracellular bacteria

example of a spirochaete

Gram negative anaerobic bacteria example

Example of gram negetive aerobic bacteria

peptostreptococcus is a gram positive anaerobic cocci bacterium

staphylococcus is a gram positive aerobic cocci bacterium

clostridium is a gram positive anearobic rod bacterium

an acid fast (ziehl neeson stain positive) rod bacterium is mycobacteria

what colour would a sample of a tuberculosis patient's mucous of their lungs go if you added a ziehl neelson stain to it

What type of bacteria would arrange themselves like this?

What bacterium would arrange themselves like this?

Which organism would arrange themselves like this?

The viral replication cycle: A[blank_start]ttachment[blank_end] of the virus to to the host cell. Entering of the virus into the host cell. Ucoating of the virus. R[blank_start]eplication[blank_end] of viral RNA or DNA into two strands. I[blank_start]ntegration[blank_end] of the viral DNA into the host cell's DNA. Production of the proteins coded for by the viral RNA or DNA upon replication of the host cell or protein synthesis. Assembly of the viral proteins into daughter viruses. R[blank_start]elease[blank_end] of the virus from the host cell.

Factors promoting infection by bacteria

What does the bacterium gonococci do in the body

what is the complement cascade triggered by?

tick which are true

S. epidermis sticks to plastic, therefore heart valves and catheters.

Virulence factors