Transport Systems in Plants

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  • Created by: jenny
  • Created on: 23-05-16 22:07

1. What is not an adaptation of a plant to reduce water loss?

  • Stomata that let air in
  • Waxy cuticle stops water escaping from the epidermis
  • Dedidious Plants lose leaves in winter because temp is too low and ground might be frozen so water content needs to be saved
  • Stomata are on the underside to reduce direct heating
  • Close at night as no gases are needed, due to lack of sunlight
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Other questions in this quiz

2. What is not used to make the transpiration stream work ?

  • Adhesion using hydrogen bonds between walls of xylem and water
  • Activley transporting ions into the stem to lower PSI
  • Active transport
  • Movement through apoplast or symplast pathway
  • Cohesion using hydrogen bonds between the water molecules
  • Pressure from the water molecules make sit move up

3. What is not a factor that increases transpiration rate?

  • More branching stem
  • Water availability
  • More leaves
  • Number and size or stomata
  • Higher temperature
  • Wind (Stronger)
  • Humidity (Less humid)

4. What do sieve plates not have?

  • Pores to allow entry to ions
  • Dense cytoplasm
  • Is between sieveplates
  • Many plasmodesmata between compaion cells to allow comunication

5. What is transpiration?

  • Loss of water vapur from ariel ports of a plantdue to evaporation
  • Movement of a stream of water from the highest point of a mountain to the sea

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