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Protein

A polymer made up of amino acids joined by peptide bonds. The amino acids present and the order in which they occur vary from one protein to another.

Plasmid

A small circle of extra DNA found in bacteria

Quiz - Pathogens

1. Below are diagrams illustrating the four main types of microorganisms. Drag the labels into their correct positions.

Vacuole
Cell Wall
Plasmid DNA
Genetic material
Bacterial DNA
Flagellum
Cytoplasm
Nucleus
Cell wall
Bud
Cytoplasm
Cell membrane
Food vacuole
Cytoplasm
Protein coat
 

2.

Diseases
HIV
HIV
Flu
Flu
Malaria
Malaria
Cholera
Cholera
Athlete's foot
Athlete's foot
Salmonella
Salmonella
Method of transmission
  •  is transmitted in tiny droplets from coughs and sneezes.
  •  is transmitted by eating contaminated food.
  •  is transmitted during sexual intercourse and by drug-users sharing needles to inject drugs.
  •  is transmitted from touching infected skin or fungus spores left on the floor.
  •  is transmitted by drinking infected water.
  •  is transmitted in the bite of an infected mosquito.
Prevention
  •  is prevented by sleeping under insect-proof nets impregnated with insecticide.
  • Spread of
     is prevented by covering mouth or using handkerchief.
  •  is prevented by good hygiene and not walking around barefoot in public places.
  •  is prevented by correct storage and preparation of food.
  •  is prevented by using a condom. Drug users do not share needles.
  •  is prevented by keeping drinking water separate from water used for bathing and sewage.
 

3. Select the correct answer from the multi-choices. When you have answered all 10 questions you may check your answers by clicking the button below.

1.

What is a pathogen?

2.

Bacteria may contain small extra circular bits of DNA. These are called:

3.

Which of the following organisms is not a pathogen?

4.

What is the cause of athlete’s foot?

5.

What type of organism causes malaria?

6.

How is influenza (flu) spread?

7.

How do viruses reproduce?

8.

How do bacteria make you ill?

9.

Which of these is NOT a way your body defends itself against pathogens?

10.

Prebiotics are substances which