Microbes Flashcards

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1
Q

What is a communicable disease?

A

A disease that can be transferred form one person to another, or from one organism to another

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2
Q

What is a non-communicable disease?

A

Those that are not transferred between people or other organisms

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3
Q

What is a pathogen

A

Is a microbe that is dangerous and makes us ill

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4
Q

What is the structure of a bacteria

A

Have one cell and are shaped like a sphere rod and spiral

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5
Q

Structure of a virus

A

Small, smaller than bacteria and need a host cell so they can grow

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6
Q

Structure of fungi

A

Network of threads find them in damp places

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7
Q

What is a microbe

A

An organism that can only be seen with the aid of a microscope

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8
Q

What can microorganisms be grown on?

A

Agar gel/jelly in a petri dish

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9
Q

How are humans protected against pathogens

A

Immune system and non specific defences

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10
Q

Give examples of non specific defences

A

Skin, stomach acid, tears, cilia and mucus

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11
Q

What do phagocytes do?

A

Engulf and digest pathogens

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12
Q

What do lymphocytes do?

A

Produce antibody molecules that cause bacteria to burst or clump together for the phagocyte to engulf.

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13
Q

What is the Aseptic technique?

A

Working in an environment that reduces the chances of contamination.

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14
Q

Who was Edward Jenner

A

The English doctor who fist developed vaccinations

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15
Q

Who first discovered antibiotics?

A

Alexander Fleming

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16
Q

What do antibiotics do?

A

Kill bacteria

17
Q

What is a superbug?

A

Bacteria that are now resistant to antibiotics because of an overuse. Charles Darwin evolution theory, only strongest survive.

18
Q

Define outbreak

A

A sudden rise in the number of cases of a disease. Occurs in a community or geographical area

19
Q

Define epidemic

A

When an infectious disease spreads rapidly to many people.

20
Q

Define pandemic

A

A global disease outbreak. Humans may have little to no protection against the rapidly spreading virus.

21
Q

What shape are cocci?

A

Sphere

22
Q

What shape are baccilli?

A

Rod

23
Q

What shape are spirochetes?

A

Spiral

24
Q

How do antibiotics work?

A

Antibiotics work by attacking the cell wall or strands of DNA in a bacteria cell.