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Write notes on Root pressure, Transpiration, Nerve cell, Human brain, Reflex action

Question

Write notes on

  • Root pressure,
  • Transpiration,
  • Nerve cell,
  • Human brain,
  • Reflex action
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Solution

Sure, here are the notes:

  1. Root Pressure: It is a type of osmotic pressure that develops in the roots of plants due to active absorption of nutrients from the soil. This pressure helps in the upward movement of water and dissolved nutrients from roots to the upper parts of the plant. It is more noticeable at night and early morning when transpiration is minimal.

  2. Transpiration: It is the process by which water is lost from the plant in the form of water vapor. It primarily occurs through the stomata (tiny openings) in the leaves. Transpiration helps in the upward movement of water and minerals from roots to leaves, cools the plant, and maintains the structure and shape of plant cells.

  3. Nerve Cell: Also known as a neuron, it is the fundamental unit of the nervous system. It is specialized to transmit information to other nerve cells, muscle, or gland cells. Most neurons have a cell body, an axon, and dendrites. The information travels from dendrites

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