Biology random facts! 4.0 / 5 based on 1 rating ? BiologyEVERYTHINGIGCSEEdexcel Created by: PollyCreated on: 13-04-15 12:46 How do fungi feed? Sapotrophic nutrition- secretion of digestive enzymes onto food 1 of 29 What are the three types of bacteria? Spheres, rods, spirals 2 of 29 What is the multicellular form of fungi? Hyphae structure 3 of 29 What 7 things do bacterium particles contain? Cell wall, flagella, plasmids, cytoplasm, chromosome, cell membrane, slime layer 4 of 29 What are the three polymers of glucose? Starch, glycogen, cellulose 5 of 29 What do proteins do? Growth and repair 6 of 29 What is the purpose of photosynthesis? To produce more energy by making glucose and oxygen 7 of 29 What is the cuticle used for? Reduces water loss by evaporation and a barrier to harmful micro-organisms 8 of 29 What is the function of the upper epidermis? Contains a few chloroplasts- relatively transparent 9 of 29 What is the function of the palisade cells? Main sight of photosynthesis 10 of 29 What is the function of the spongy layer? Main surface of gas exchange 11 of 29 What is the function of the xylem? Carries water and mineral ions through the leaf 12 of 29 What is the function of the phloem? Carries products of photosynthesis through the leaf 13 of 29 What is the function of the lower epidermis? Contains stomata, allowing CO2 to diffuse in, and O2 to diffuse out 14 of 29 What do nitrate ions do? Make amino acids, proteins, chlorophyll, and DNA 15 of 29 What do phosphate ions do? Making DNA 16 of 29 What do potassium ions do? Used for enzymes of respiration and photosynthesis 17 of 29 What do magnesium ions do? Part of chlorophyll molecule 18 of 29 What do plants NOT use glucose for? Cytoplasm 19 of 29 Why are lipids important? Long term energy store/ insulation/ protect organs 20 of 29 What does vitamin A do? Makes chemical in eye retina which is light sensitive 21 of 29 What does vitamin C do? Makes connective tissue, acting as glue and bonding cells together 22 of 29 What does vitamin D do? Needed for growing bones to take up calcium 23 of 29 What does the colon do? Absorbs remaining water 24 of 29 What does the rectum do? Stores faeces until it is expelled by the anus 25 of 29 What enzyme is released in the stomach and what does it do? Pepsin- breaks down protein into peptides 26 of 29 What is the equation for the anaerobic respiration of yeast? glucose->ethanol+carbon dioxide 27 of 29 What is the equation for anaerobic respiration of humans? glucose->lactic acid 28 of 29 What is the role of the stomata in gas exchange? Allow CO2 to diffuse in, and O2 to diffuse out 29 of 29
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