Cells may be specialised for a particular function. Their structure will allow them to carry this function out. Here are some examples:
|Absorbs light energy for photosynthesis||Packed with chloroplasts. Regular shaped, closely packed cells form a continuous layer for efficient absorption of sunlight.|
|Absorbs water and mineral ions from the soil||Long 'finger-like' process with very thin wall, which gives a large surface area.|
|Fertilises an egg cell - female gamete||The head contains genetic information and an enzyme to help penetrate the egg cell membrane. The middle section is packed with mitochondria for energy. The tail moves the sperm to the egg.|
|Contain haemoglobin to carry oxygen to the cells.||Thin outer membrane to let oxygen diffuse through easily. Shape increases the surface area to allow more oxygen to be absorbed efficiently. No nucleus, so the whole cell is full of haemoglobin.|
You are likely to be given information, perhaps in a diagram, to help you to explain the adaptations of a particular cell type to its function.
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