Biology

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  • Created by: zoee190
  • Created on: 18-02-14 16:15
What do we mean by a balanced diet?
A balanced diet contains the correct amount of all the nutrients needed for healthy functioning of the body
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Give three reasons why a person may be malnourished?
They make take in too much energy; they may have too little food; particular nutrients may be missing from their diet
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Give three factors that affect how much energy a person needs?
Three from: Size of the person, sex of the person, the amount of exercise they do, the outside temperature, pregnancy
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What is mean by the term 'metabolic rate' and what factors affect the rate?
Metabolic rate is the a measure of how quickly the chemical reactions in cells release energy from food. Exercise/ proportion of fat to muscle/inherited factors affect the rate
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What is a pathogen?
An organism that causes disease
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What is an antibiotic?
A drug that kills bacteria
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What is meant by a mutation of a pathogen?
A change in the gene
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How is a pandemic different from an epidemic?
A pandemic occurs when a disease spreads between different countries, an epidemic occurs within one country
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How does a person develop immunity following vaccination?
White blood cells respond to the vaccine by producing antibodies. If the body is infected with the pathogen, the white blood cells respond quickly by producing more antibodies
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Other cards in this set

Card 2

Front

Give three reasons why a person may be malnourished?

Back

They make take in too much energy; they may have too little food; particular nutrients may be missing 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 mean by the term '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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