Water Balance in Plants (HSC SSCE Biology): Flashcards

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Water Balance in Plants
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Transpiration

Evaporation of water from stomata on leaf surfaces

Stomata

Tiny pores on leaf surfaces where water evaporates

Xerophytes

Plants adapted to survive in extremely dry conditions

Cladodes

Photosynthetic stems that replace leaf function

Phyllodes

Photosynthetic leaf stalks that replace leaf function

Succulents

Plants with tissues that store water for dry periods

Role of white hairs on xerophyte leaves

Reflect sunlight, reducing temperature and evaporation

Function of waxy cuticle

Waterproofs epidermal cells, prevents water loss

Microclimate in xerophytes

Humid air trapped near leaf by hairs/curled leaves

Transpiration stream

Continuous water flow from roots through stem to all plant parts

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