Levels of Organisation 0.0 / 5 ? BiologyVariety of life and classificationIGCSEEdexcel Created by: LauranCreated on: 21-10-13 19:54 What is an organelle? Tiny structures within cells. 1 of 15 What is found in a typical animal cell? Nucleus, Cell Membrane,Cytoplasm 2 of 15 What is the purpose of a nucleus? The organelle which contains the genetic material that controls the cell's activities. It is surrounded by its own membrane. 3 of 15 What is the cell membrane? Forms the outer surface of the cell and controls the substances that go in a 4 of 15 What is the cytoplasm? A gel-like substance where most chemical reactions happen.It contains enzymes. 5 of 15 What is usually found in plant cells? Nucleus,Cell membrane,Cytoplasm, Chloroplasts, Cell wall, Vacuole 6 of 15 What is the purpose of the chloroplasts? This is where photosynthesis happens. Chloroplasts contain a green substance called chlorophyll, which is used in photosynthesis. 7 of 15 What is a cell wall? A rigid structure made of cellulose, which surrounds the cell membrane. It supports the cell and strengthens it. 8 of 15 What is a vacuole? A large organelle which contains cell sap. It supports the cell. 9 of 15 How are red blood cells "specialised?" For carrying oxygen (and haemoglobin) 10 of 15 How are white blood cells "specialised?" To defend body against disease 11 of 15 What are similar cells organised into? Tissues 12 of 15 Define "tissues" A tissue is a group of cells that work together to carry out a particular function. 13 of 15 What are tissues organised into? Organs 14 of 15 What do organs make up? Organ systems 15 of 15
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