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30 Cards in this Set
- Front
- Back
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What happens in the cytoplasm |
Where the chemical reactions take place e.g respiration |
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What contains chlorophyll which absorbs light energy for photosynthesis |
Chloroplasts |
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What does the vacuole do? |
Contains cell sap and regulates the water content of a cell |
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Cell sap is mafe of what? |
Salts and sugars |
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Where are chromosomes found? |
The nucleus |
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In humans body cells contain how many body cells? |
46 |
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Mitosis is the name of what? |
Cell division |
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Why is cell devision important? |
To replace damaged cells, for growth qnd repair |
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Where does cell devision take place? |
In mammals, all over the body. In plants, the meristems(root and shoot) |
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Proteins are vital for what? |
Cell growth, building and repair |
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Carbs and fats give us what? |
Energy |
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What is energy from food measured in? |
Joules (j) |
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Food contains what energy? |
Chemical |
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What is the Aerobic respiration equation? |
Food(glucose)+oxygen→carbon dioxide+water+energy |
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Whqt is the change in energy in aerobic respiration? |
Chemical→heat |
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Where does stage 1 take place? |
Cytoplasm |
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Stage 2 takes place where? |
Mitochondria |
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Does stage 1 take place with or without oxygen? |
Without, it does not need oxygen but can happen with |
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What happens in stage 1? |
Glucose 6c → pyruvic acid 2x3c |
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What happens in stage 2? |
Pyruvic acid + oxygen → carbon dioxide + water + energy (ATp) |
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What do you use to measure rate of respiration? |
Respirometer |
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Fermintation is another name for what? |
Anerobic respiration |
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Name the 3 types of micro-orginism? |
Viruses, bacteria and fungi |
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Enzymes are made of what? |
Proteins |
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Amaylase breaks down what? |
Starch |
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Starch and amaylase make what? |
Maltose |
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In what side of an enzyme does the reaction take place? |
Active site |
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Why is an enzyme reaction specific? |
Because only one substrate combines to the enzyme |
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When does anerobic respiration take place? |
When there is not enough oxygen available |
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Muscle fitigue is caused by? |
A build up of lactic acid |
