About the epidermial cell of the root hair.

  • #1
Anyone one here, knows any link where there will be a diagram of the epidermal cell of the root hair cell?
If not, could you please explain to me everything about the epidermal cell of the root hair.
 
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  • #2
Welcome to PhysicsForums, however, this is the sort of thing you can Google (Image Search?) for:
http://lmgtfy.com/?q=root+hair+cell

Conveniently enough, there are several pictures (and a link to the full results of the image search) that are at the top of the page. If you're looking for a description, the Wikipedia page is a good start (basically, it's a cell with one side really elongated, and the increased surface area helps it absorb water / nutrients / minerals):
http://en.wikipedia.org/wiki/Root_hair
http://en.wikipedia.org/wiki/Root_hairs
 

1. What is the function of epidermal cells in root hairs?

The main function of epidermal cells in root hairs is to absorb water and nutrients from the soil. They also provide protection to the root hairs and help in anchoring the plant to the ground.

2. How are epidermal cells different from other cells in the root hair?

Epidermal cells in root hairs are specialized cells that have long, thin extensions called root hairs. These root hairs increase the surface area of the root, allowing for better absorption of water and nutrients. They also lack a cuticle, which is present in other epidermal cells to prevent water loss.

3. What is the structure of an epidermal cell in a root hair?

Epidermal cells in root hairs are elongated and have thin cell walls. They also have a large central vacuole, which helps in regulating water balance. These cells also contain numerous mitochondria to provide energy for active transport of nutrients.

4. How do epidermal cells in root hairs absorb water and nutrients?

Epidermal cells in root hairs have specialized structures called plasmodesmata, which are small channels that connect neighboring cells. These channels allow for the transfer of water and nutrients between cells. The root hairs also have a high concentration of transport proteins on their cell membranes to actively transport nutrients into the cells.

5. Can epidermal cells in root hairs regenerate?

Yes, epidermal cells in root hairs can regenerate if they are damaged. When a root hair is injured or dies, neighboring epidermal cells can divide and produce new root hairs to replace the damaged ones. This is an important process for the continued absorption of nutrients and water by the plant.

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