Biology dc2 moch revision 0.0 / 5 ? ScienceBiologyGCSEEdexcel Created by: Happyrevising2019Created on: 01-12-19 23:03 What is the function of chloroplast Where photo synthesis occurs to make food for the plant 1 of 22 Nucleus Contains genetic material and controls the cell 2 of 22 What is functioning ribosomes Protein synthesis 3 of 22 What is function of mitochondria Where reputation takes place and energy is transferred so the cell can work 4 of 22 Function of vacuole Contains sell sap and maintains internal pressure to support the cell 5 of 22 Function of cytoplasm Where chemical reactions take place and enzymes control the chemical reactions 6 of 22 How do enzymes work Enzymes are biological catalysts. An enzyme will only work when the active site and substrate fit together with the lock and key method 7 of 22 What does optimum mean When enzyme working at best 8 of 22 How is egg cell adapted to it's function Bigger than the sperm cell and has chemicals around the outside to stop more sperm from getting in 9 of 22 How is ciliated epithelial cell adapted to it's function of absorbing food The hairs move hair, dust, mucus and bacteria and five a large surface area for diffusion 10 of 22 What are proteins made into and by what enzyme Amino acids by proteases 11 of 22 What is starch made into and by what enzyme Glucose by ammylase 12 of 22 What are lipids made into and by what enzyme Glycerol by lipases 13 of 22 3 factors that effect enzyme activity pH, temperature, substrate concentration 14 of 22 Pros of light microscope Light, cheap, easy to use 15 of 22 Cons of light microscope Need very thin specimen, lower resolution 16 of 22 Pros of electron microscope Powerful magnification, high resolution , allow us to see subcellular particles 17 of 22 Cons of electron microscope Expensive, big, heavy, bulky 18 of 22 Equation for calculating magnification? Ocular lens magnification multiplied by objective lens magnification 19 of 22 What is evolution Slow and continuous change of organisms from one generation to the next 20 of 22 What is natural selection Survival of the fittest 21 of 22 How does bacteria become resistant to antibiotics, supporting Darwin's theory -sometimes develop random mutations in their DNA 22 of 22
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