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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 |