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Biology > Infectious Diseases > Flashcards

Infectious Diseases Flashcards

1
Q

What is a disease?

A

any condition that impairs the normal functioning of an organism

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2
Q

What are the two categories of diseases?

A

1) infectious
2) non-infectious

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3
Q

Which category of disease (infectious or non-infectious) has a causative agent?

A

infectious diseases

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4
Q

What is a pathogen?

A

a causative agent, or basically an organism that can cause a disease

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5
Q
A
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6
Q

Which category of disease is contagious?

A

infectious

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7
Q

What are three examples of infectious diseases?

A
  • cold
  • tetanus
  • hair lice
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8
Q

What causes the common cold?

A

a virus (usually Rhinoviruses)

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9
Q

What causes tetanus?

A

bacteria (spores of the bacteria clostridium tetani)

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10
Q

What causes hair lice?

A

a small parasitic organism

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11
Q

What category of disease is caused by genetics, environmental influences, or cellular malfunctions?

A

non-infectious diseases

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12
Q

What are non-infectious diseases caused by? (3)

A
  • genetics
  • environmental influences
  • cellular malfunction
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13
Q

What are infectious diseases caused by?

A

a causative agent, or an organism that can cause disease (pathogen)

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14
Q

What are 4 examples of a non-infectious disease?

A
  • cystic fibrosis
  • Down syndrome
  • sunburn
  • cancers
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15
Q

Cystic fibrosis and Down syndrome are examples of ______ non-infectious diseases.

A

GENETIC non-infectious disease

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16
Q

What causes sunburn?

A

excessive ENVIRONMENTAL exposure to the sun

17
Q

What causes cancer?

A

uncontrolled CELL division aka uncontrolled mitosis

18
Q

Usually _____ (a single/many) factor/s contribute/s to the development of an infectious disease?

A

many factors contribute to the development of an infectious disease

19
Q
A
20
Q

Give two examples of how multiple factors can cause an infectious disease?

A
  • some people can have a GENETIC PREDISPOSITION to have CELLULAR MALFUNCTIONS (like the BRCA 1 gene for breast cancer)
  • GENETIC PREDISPOSITION and ENVIRONMENTAL FACTORS (like poor diet) can contribute to an individual developing

Biology (30 decks)

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