infection and response Flashcards

1
Q

 what are some causes of noncommunicable diseases

A

Lack of exercise, alcohol, smoking, UV radiation, high intake of sugars, and fats

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2
Q

what is a benign tumour?

A

It stays in one part of the body and tends to be contained in a membrane, so usually doesn’t spread

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3
Q

what is a malignant tumour?

A

It is not contained, so it can travel in the blood to other tissues

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4
Q

How did tumours form?

A

Cells multiply excessively

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5
Q

State four causes of cancer

A

Genetic
Mutations
radiation
Infection

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6
Q

what are the two ways of treating cancer?

A

Radiotherapy and chemotherapy

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7
Q

What is a pathogen?

A

Microorganisms that enter the body and caused disease

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8
Q

How do bacteria make you feel ill?

A

They produce toxins that damage your cells and tissues

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9
Q

How do viruses make you feel ill?

A

They live inside yourselves and replicate themselves. The cell will burst releasing the viruses.

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10
Q

How can pathogens be spread?

A

Water air and direct contact

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11
Q

name three diseases caused by fungi

A

Athletes foot, ringworm, rose blackspot

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12
Q

name four diseases caused by viruses or fungi

A

Measles, HIV, tobacco mosaic virus, rose blackspot

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13
Q

What is a vector?

A

An organism that spreads disease by carrying pathogens between people

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14
Q

how can we prevent disease?

A

Hygiene, destroying, vectors, isolating, infected, individuals, vaccination

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15
Q

which features stop pathogens getting in the body

A

Skin, hair, mucus, trachea, bronchi, Cilia, stomach acid

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16
Q

what is phagocytosis?

A

When white blood cells, ingest, digest, and destroy pathogens

17
Q

How do white blood cells stop pathogens?

A

pathogen invades body
It multiplies and produces toxins
White blood cells produces antibodies
Antibody binds to antigen
Pathogen and invades again , body recognises it and fight it

18
Q

name, two medicines that were discovered by studying plants

A

Aspirin and digitalis

19
Q

what do vaccines contain?

A

Dead pathogens, or weaken pathogens

20
Q

What is a vaccination do?

A

Create immunity without making you sick

21
Q

how do vaccinations work?

A

It injects, dead or weakened pathogens into the body
White blood cells respond as if it were a life pathogen
Memory cells will remember pathogen if it invades again

22
Q

what are drugs tested for?

A

efficacy, safety, dosage

23
Q

what is the order of things that get tested on for medicine and drugs?

A

Cells in a lab, animals, a few healthy people, a few sick people, lots of sick people

24
Q

name four ways to kill bacteria

A

Temperature
Disinfectants
Antiseptics
Antibiotics

25
Q

how did antibiotics kill bacteria?

A

Breaks down the cell wall, but not your own cell

26
Q

What is a monoclonal antibody?

A

Produced from lots of clones of a single white blood cell, meaning all the antibodies are identical and will only target one specific antigen 

27
Q

how to pregnancy test work?

A

The hormone bones onto the antibodies on the blue beads on the bit you wee on
The urine moves up the stick, carrying the hormone and the beads
The beats and hormones bind to the antibodies on the strip
So blue beads, get stuck on the strip, turning it blue

28
Q

what can monoclonal antibodies be used for?

A

Treating diseases, and in laboratories and research to find specific substances

29
Q

what are some problems to monoclonal antibodies?

A

More side effects, E.G fever, vomiting, and low blood pressure.

30
Q

what is an advantage to monoclonal antibodies

A

Cancer treatment. Other cancer treatments can affect normal body cells as well as killing cancer cells, whereas monoclonal antibodies target specific cells.

31
Q

what are signs that a plant has a disease

A

Stunted growth
Abnormal growths
Spots
Malformed stems or leaves
decay
Discolouration