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Bio - Organisation
Biology - Organisation
| Question | Answer |
|---|---|
| What do organisms need from the environment? | food, oxygen and water |
| What do plants need for photosynthesis? | carbon dioxide |
| What do organisms need to remove? | waste substances |
| What do you use to test for sugars? | Benedict's solution |
| What happens to the Benedict's solution if sugar is present? | It turns red-brown |
| What do you use to test for protein? | Biuret solution |
| What happens to the Biuret solution if proteins are present? | It turns pink or purple |
| What do you use to test for starch? | Iodine |
| What happens to iodine if starch is present? | It turns blue/black |
| What type of cells are 'xylem' and 'phloem'? | plant cells |
| What are 'villi'? | small, finger-like structures in the small intestine |
| What do 'villi' do? | help to absorb digested food |
| What are 'enzymes'? | protein molecules in cells |
| What do 'enzymes' do? | speed up chemical reactions in the body |
| What do the enzymes 'proteases' digest? | proteins |
| What do the enzymes 'nucleases' digest? | nucleic acids |
| Where is the digestive enzyme 'amylase' produced? | in the mouth |