Biology

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What is your metabolic rate?
The rate at which the chemical reactions take place in your cells
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Rickets is the deficiency disease of what Vitamin?
Vitamin D
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Vitamin C is required for maintaining what?
Healthy connective tissue and heals wounds
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The body converts beta-carotene into what?
Vitamin A
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Fibre helps the intestine walls to...
... move food and faeces along the gut
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What does Iron produce, which binds to oxygen in red blood cells, and what is its deficiency disease?
Haemoglobin and anaemia
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Name the two types of white blood cells and what they do.
Phagocytes- ingest bacterium; Lymphocytes- produce antibodies and antitoxins.
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What is the name of the process of ingesting bacterium?
Phagocytosis
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Microorganisms growing on the nutrient medium is called...
... a culture
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What do pathogens contain that are the foreign chemicals to our cells?
Antigens
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What is used in a vaccine?
A small, inactive does of a pathogen
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What causes an antibiotic to become resistant?
A mutation (through natural selection) and overuse of the antibiotic.
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Penicillin was discovered by whom and in what year?
Alexander Fleming, 1928
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What did Ignaz Semmelweis discover?
The importance of cleanliness when battling disease
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Where is cholesterol produced and where is excess cholesterol taken?
Liver- both
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Which cholesterol is considered the 'good' cholesterol?
High-density Lipoproteins
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High levels of cholesterol in the blood increases the risk of...
... developing plaques in artery walls and heart disease
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Receptors are a group of specialised cells that detect changes...
... in the environment, known as stimuli
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A reflex action does not involve what?
The brain
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Electrical impulses travel over 3 different neurones. Name each and its order.
Sensory Neurone -> Relay Neurone -> Motor Neurone
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Describe what happens at the Synapse.
One neurone arrives with the impulse. It diffuses the information over the synapse (tiny gap) and is picked up by the next neurone.
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Other cards in this set

Card 2

Front

Rickets is the deficiency disease of what Vitamin?

Back

Vitamin D

Card 3

Front

Vitamin C is required for maintaining what?

Back

Preview of the front of card 3

Card 4

Front

The body converts beta-carotene into what?

Back

Preview of the front of card 4

Card 5

Front

Fibre helps the intestine walls to...

Back

Preview of the front of card 5
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