B: Cells and Systems, section 4: Health Science Flashcards

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1
Q

What did Edward Jenner do to stop people from getting small pox?

A

He infected people with cow pox on purpose to make them immune. Creating the first vaccination

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2
Q

Who was the first person to discover living micro-organisms?

A

Louis Pasteur

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3
Q

Who discovered that germs caused infectious diseases?

A

Louis Pasteur

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4
Q

Who introduced the practice of cleanliness and sterilization?

A

Joseph Lister

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5
Q

How did Louis Pasteur get rid of germs?

A

By heating up substances to 60 degrees

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6
Q

Why could early sailors only bring non-perishable foods?

A

So they wouldn’t spoil

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7
Q

Why did sailors get scurvy?

A

Because they could only bring non-perishable foods and that meant no fruits that were rich in vitamin c. Therefor they got vitamin c deficiency

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8
Q

What are the contents of a cigarette?

A

Tar, carbon monoxide, and nicotine

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9
Q

What is Tar?

A

A dark sticky substance that forms when a cigarette burns. When a smoker inhales this it settles on the respiratory organs

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10
Q

What is carbon monoxide?

A

A colorless odorless gas that is released when a cigarette burns. When a smoker inhales this it get into their system and makes their heart beat faster.

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11
Q

What is nicotine?

A

Nicotine a speeds up the heart and raises blood pressure. It is also addictive.

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12
Q

What is bronchitis?

A

Bronchitis is a disease that occurs when build up of substances on the bronchi cause them to become narrower. Giving them a hard time breath

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13
Q

What is emphysema?

A

Emphysema occurs when cigarette smoke damages lung tissue.

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14
Q

How many chemicals in a cigarette cause cancer?

A

40 of the 400

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15
Q

What is cholesterol?

A

What the body converts fat into

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16
Q

What is the build up of cholesterol in the arteries called?

A

Atherosclerosis

17
Q

How does atherosclerosis affect the body?

A

It makes the arteries thinner making the heart pump more

18
Q

What are stomach ulcers?

A

When the stomach doesn’t produce enough mucus and stomach basically eats itself.

19
Q

What causes stomach ulcers?

A

H.pylori. I can’t be digested.

20
Q

What did Edward Jenner notice about small pox?

A

People who got cow pox almost never got small pox