Frequently Asked Questions About Workplace Safety & Health. 1  Where can I get an OSHA 300 Log? 2  I hear that OSHA has new record keeping guidelines. 3  How do I know if my business is exempt from filing the new OSHA 300 form?  I have noticed many unsafe work practices at my employment, and I want to file a complaint.
Hair root. Hair root. The part of a hair that is embedded in the hair follicle, its lower succulent extremity capping the dermal papilla pili in the deep bulbous portion of the follicle. Synonym: radix pili. Please contribute to this project, if you have more information about this term feel free to edit this page.
A root hair is a simple extension of the epidermis of a root cell, and reach into the soil to absorb water. It exists to increase the surface area and therefore the rate at which water can be absorbed. Some plants have fungi which act like fine roots, absorbing nutrients from the soil for the plant. Water moves into the root hair cells because it is moving down a water potential gradient, since a root cell has a relatively low water potential due to its inorganic ions and organic substances.