Biology B2 1.3 Specialised cells 0.0 / 5 ? BiologyAdaptations of organisms to their environmentGCSEAQA Created by: Atlanta and JacobCreated on: 28-11-16 19:39 Why are cells specialised? To carry out a particular function, e.g. fat cells, cone cells, root hair cells and sperm cells. 1 of 11 What provides a clue to a cells function? It's structure. There are many types of animal and plant cells. 2 of 11 How can we tell if a cell needs a lot of energy? The cell has many mitochondria, e.g. muscle cell, sperm cell. 3 of 11 How can we tell if a cell is making a lot of protein? The cell has many ribosomes, e.g. gland cells which produce enzymes. 4 of 11 What do cells that are able to move have? Tails, e.g. sperm cells. 5 of 11 What cells have special structures which enable them to detect stimuli? Receptor cells, e.g. the cone cells in the eye are light sensitive. 6 of 11 How are impulses carried from receptors to the CNS? Neurons are specialised to carry impulses from receptors to the CNS. 7 of 11 What cells are photosynthesising? Plant cells with chloroplasts, e.g. mesophyll cells of a leaf. 8 of 11 What do root hair cells do? Increase the surface area of the root so that it can absorb water and mineral ions efficiently. 9 of 11 Why do muscle cells need a lot of mitochondria? Mitochondria release energy which muscles need for movement. 10 of 11 **LOOK UP DIAGRAM OF A ROOT HAIR CELL AND A SPERM CELL** **DO NOT BE PUT OFF IF YOU ARE ASKED TO SUGGEST A FUNCTION FOR AN UNFAMILIAR CELL. LOOK AT THE STRUCTURES IN THE CELL FOR CLUES** 11 of 11
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