Transport in Plants

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  • Created by: chrcur
  • Created on: 04-04-16 11:57

1. What is transpiration?

  • The evaporation of water from a plant's surface.
  • The movement of solutes to where they're needed in a plant.
  • The movement of water through a plant
  • The action of drawing water up from the roots.
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2. What is the cohesion-tension theory?

  • The action of tension to stick molecules together.
  • The combined action of cohesion and tension to move water up a plant.
  • The action of cohesion in a plant causing tension in the leaves.

3. What is cohesion?

  • The sticking together (attraction) between molecules of the same type.
  • Suction that causes molecules to be pulled.

4. What are sieve tube elements?

  • Living cells found in phloem that form the tube for transporting solutes. They have no nucleus and few organelles. They are supported by companion cells which carry out the living functions for sieve cells.
  • Living cells that 'sieve' out what solutes are allowed through and those that aren't
  • Dead cells that 'sieve' out what solutes are allowed through and those that aren't

5. What is tension?

  • Suction that causes molecules to be pulled.
  • The sticking together (attraction) between molecules of the same type.

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