Term
What is the defintion of Active Transport? |
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Definition
The uptake of particles by cells against a concentration gradient. It requires energry and a carrier protein. |
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Term
What is the definition of diffusion? |
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Definition
The movement of particles from an area of high concentration to an area of low concentration. |
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Term
What is the defintion of osmosis? |
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Definition
| The movement of water particles through a partially permeable membrance from an area of high water concentration to an area of low water concentration. |
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Term
What are carbohydrates made up of? |
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Definition
Carbohydrates are made up of long chains of identical, small sugar molecules called GLUCOSE. |
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Term
What are proteins made up of? |
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Definition
Proteins are also made up of long chains of molecules, but they aren't identical and they are called AMINO ACIDS |
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Term
How many diiferent kinds of amino acids are there in the body? |
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Definition
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Term
What are fats made up of? |
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Definition
Fats are made up of fat molecules which contain fatty acids and glycerol. |
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Term
What elements make up Carbohydrates, Proteins and Fats? |
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Definition
Carbs: Carbon, Hydrogen and Oxygen
Proteins: Carbon, Hydrogen, Oxygen, Nitrogen and sometimes Sulphur too
Lipids: Carbon, Hydrogen and Oxygen |
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Term
What do enzymes do to a reaction? |
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Definition
Enzymes speed up a reaction. |
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Term
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Definition
Yes, since only small amounts are needed. |
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Term
Why is an enzyme spefific to one particular substrate? |
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Definition
Because they have the exact shape to fit into the active site of the enzyme. |
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