• Root hairs are single-celled extensions of?epidermis cells?in the root
• They grow between soil particles and absorb water and minerals from the soil
• Water enters the root hair cells by?osmosis
• This happens because soil water has a?higher water potential than the cytoplasm?of the root hair cell

Structure of the root

• The root hair increases the surface area of the cells significantly
• This large surface area is important as it?increases the rate of the absorption of water by osmosis and mineral ions by active transport

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