AQA GCSE C2 QUIZ (: Just a little quiz I made the day before my Biology exam :) Hope it helps you! 4.5 / 5 based on 3 ratings ? BiologyGCSEAll boards Created by: Phoebe :)Created on: 18-05-11 14:43 Osmosis, what is it? Diffusion of water molecules from a dilute solution to a more concentrated solution until they are evenly spread out 1 of 27 Movement of particles from a region of high concentration to a region of lower concentration, Until evenly spread out Diffusion 2 of 27 How does dissolved substances pass into and out of cells? Diffusion 3 of 27 What does the Mitochondria do? Most energy is released here by respiration 4 of 27 What is an organ made of? Different groups of tissue 5 of 27 Green plants absorb light energy using.. Chlorophyll 6 of 27 What is the correct equation for photosynthesis Carbon dioxide (CO2) + Water (H20) ---Light and Chlorophyll--> Glucose (C6H1206) + Oxygen (O) 7 of 27 What happens if a plant lacks in the mineral Nitrate? Its growth is stunted and the old leaves go yellow 8 of 27 If sugar is turned to starch, where is it stored? Roots 9 of 27 Farmers can increase photosynthesis by: Artificial light, More Co2, increased temprature 10 of 27 Plants need Hydrogen, Carbon and Oxygen? True 11 of 27 Biomass is used by which features? Used in Growth 12 of 27 Decay is slowest in wet, warm aerobic conditions? False 13 of 27 What are enzymes? Biological Catalysts 14 of 27 What is a Genotype Combination of allele that an individual has for that charecteristic 15 of 27 Asexual reproduction? Mitosis, Identical to parents, No variation 16 of 27 Most enzymes denature above tempratures: 45 'C 17 of 27 Mitosis Used for growth and repair 18 of 27 The general optimun pH for enzymes to work in is pH 6-7 19 of 27 Alleles --> 22 of 23 paits contain same genes! The 23rd is either ** or XY 20 of 27 HomeoStasis - 3 main topics Core Body temprature, Water balance/Ion Content, Blood Glucose levels 21 of 27 The thermoregulatory centre is... In the brain 22 of 27 When you are too hot: Hairs lay flat, Sweat produced, Blood vessels dialate 23 of 27 When you are cold: Hairs stand up, Blood vessels contract, you shiver 24 of 27 What moniters the blood sugar levels? Pancreas 25 of 27 Diabeties Treatment: Monitering food intake, Injecting insulin 26 of 27 What are all animals and plants made out of? Cells 27 of 27
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