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Biology > B5 Communicable Diseases > Flashcards

B5 Communicable Diseases Flashcards

1
Q

Name 5 causes of bad health

A

Poor lifestyle choices
Stress
Genetics
Pathogens
Age

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2
Q

What are pathogens

A

Disease causing microbes
Fungi
Virus
Protists
Bacteria

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3
Q

What are communicable diseases

A

Can be passed on and is caused by a pathogen

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4
Q

What are non communicable diseases

A

Cannot be passed on

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5
Q

Name 2 bacterial diseases

A

Salmonella
Gonorrhoea

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6
Q

Name 4 viruses

A

Measles
HIV
Tobacco mosaic virus

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7
Q

Describe bacteria

A

They enter the body
Reproduce rapidly by binary fission
They produce toxins that make you ill
Can directly damage body cells

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8
Q

Describe viruses

A

Only live in cells
They enter cells, take over its genetic machinery, reproduce rapidly and burst out of the cell, killing it

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9
Q

Name a protist disease

A

Malaria

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10
Q

Name a fungal disease

A

Rose black spot

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11
Q

Describe measles

A

Spread by droplet infection
Causes a fever and rash
Can be fatal
No cure
Isolation and vaccines prevent spread

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12
Q

Describe tobacco mosaic virus

A

Symptoms include mosaic pattern on leaves
Virus destroys plants cells so they can no longer photosynthesise
Spread by contact with other infected plant material

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13
Q

Describe HIV

A

Causes flu like symptoms
Can be controlled with antiretroviral drugs
Attacks immune cells
Spread through bodily fluids
AIDs occurs when immune system in badly damaged

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14
Q

Describe salmonella

A

Caused be bacteria found in food
Can cause fever, vomiting, diarrhoea, and abdominal cramps
The bacteria can be found in poultry so these animals are vaccinated against it

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15
Q

Describe gonorrhoea

A

STD
Can be prevented by using a type of barrier contraception
Symptoms include green or yellow discharge or pain when urinating
Used to be treated with antibiotics but many resistant strains have developed

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16
Q

Describe rose black spot

A

Fungal disease that affects plants
Causes black or purple spots on leaves
The whole leaf often turns yellow and drops off
Reduces photosynthesis
Spread in wind or water
Treatment includes removing infected leaves or using fungicides

17
Q

Describe malaria

A

The protist has a lifecycle that requires in to live inside a mosquito for some of its life then inside a mammal for the rest of it
In a mosquito, it is found in the salivary glands and is then transmitted to a person when it sucks their blood
Mosquito is a vector
Can cause recurring fever and possible death
Can be prevented by targeting mosquitos and avoiding getting bitten

18
Q

What are 4 ways to prevent infection/disease

A

Hygiene
Isolating
Destroying pathogens
Vaccination

19
Q

What is binary fission

A

How bacteria multiply

20
Q

What is a culture

A

A population of microorganisms that has been deliberately grown to study

Biology (11 decks)

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