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19 Cards in this Set
- Front
- Back
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What is tissue? |
A group of cells with a similar structure and function. |
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What are organs? |
A collection of tissues performing specific functions. |
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What are organ systems? |
Organised organs which work together to form organisms, these perform specific functions. |
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What is the digestive system in a mammal? |
An organ system where several organs work together to digest and absorb food. |
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Glycerol is described as having what? |
3 fatty acids. |
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What are carbohydrates used for? |
Energy metabolism |
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What are fats/lipids and what are they used for? |
They're a concentrated energy store. They store energy and are also used for insulation to keep warm. |
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What are proteins used for? |
To grow new cells and replace damaged cells. |
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What is fibre used for? |
For indigested cellulose cell walls and to bulk out food so guy muscles can work properly. |
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What 7 things are needed for a balanced diet? |
Minerals/ions; vitamins; water; fibre; protein; carbohydrates; fats/lipids |
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What do fats and lipids contain? |
Hydrogen, carbon, oxygen and phosphorus. |
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True or False: fats and lipids are insoluble in water. |
True |
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How can fats and lipids be used in the body? |
For hormones, cell membranes and I'm the nervous systems. |
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What do proteins contain? |
Carbon, hydrogen, oxygen and nitrogen. |
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What are proteins made of? |
Long chains of amino acids which fold up into a specific shape. |
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Describe the two functions of amino acids. |
Structural ~ Hair, collagen in skin Metabolic ~ Enzymes, hormones, antibodies |
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What do carbohydrates contain? |
Carbon, hydrogen and oxygen |
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What are carbohydrates made of? |
Sugar units |
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Carbohydrates are substrates for respiration - what does this mean they're they used for? |
Energy release |
