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What is a root hair cell?
Root hair cells are outgrowths of epidermal cells, specialized cells at the tip of a plant root
What are the adaptations of root hair cells?
Surface area
No chloroplasts
Thin walls
Has a permanent vacuole
Cutin
How does surface area impact root hair cells?
The more surface area there is, the bigger the root hair cells are. This increases the rate of absorption of water and ions
What does the cell membrane and cell wall do in root hair cells?
The cell membrane and cell wall enable ions to cross membrane
What does it mean by the cell membrane being partially permeable to water?
The cell membrane absorbs water and ions from the soil
How does the mitochondria impact the root hair cells?
The mitochondria provides energy (ATP - Adenosine Triphosphate) for active transport of ions
How does the short distance affect rate of diffusion?
The root hair cell has a short distance across cell wall, meaning bigger rate of diffusion
Note 
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