Biology (Keeping healthy)

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What do we mean by a balanced diet?
A balanced diet contains the correct amounts of all the nutrients needed for a healthy functioning body
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Give 3 reasons why a person may be malnourished.
They may take in too much energy, they may have too little food and particular nutrients might be mising from their diet
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Give three factors that affect how much energy a person needs
size of the person, sex of the person, the amount of exersise they do
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What is meant by a metabolic rate and what factors affect the rate?
It is a measure of how quickly chemical reactions happen in the body
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What is a pathogen?
Is an organism that causes a disease
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What is an antibiotic?
A drug that kills bateria
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Why is it difficult to produce medicines to destroy viruses?
Viruses reproduce inside body cells, the drugs would also damage the cells or tissues
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What is meant by mutation of a pathogen?
A change in a gene
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How is a panedimic different from a epidemic?
A panedemic occurs when a disease spreads between different countries, and epidemic is only in one country
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Explain how bacteria develop antibiotic resistance
some bacteria mutate and become resistant to the antibiotic, antibiotics kill the non-resistant strains. The resistant strains multiply.
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Other cards in this set

Card 2

Front

Give 3 reasons why a person may be malnourished.

Back

They may take in too much energy, they may have too little food and particular nutrients might be mising from their diet

Card 3

Front

Give three factors that affect how much energy a person needs

Back

Preview of the front of card 3

Card 4

Front

What is meant by a metabolic rate and what factors affect the rate?

Back

Preview of the front of card 4

Card 5

Front

What is a pathogen?

Back

Preview of the front of card 5
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