Please enable JavaScript.
Coggle requires JavaScript to display documents.
LEAF STRUCTURE AND FUNCTION - Coggle Diagram
LEAF STRUCTURE AND FUNCTION
STRUCTURE OF LEAF
INTERNAL
Lower Epidermis
Palisade Mesophyll
Upper Epidermis
Spongy Mesophyll
Cuticle
Vascular bundle
EXTERNAL
Lamina
Petiole
GASEOUS EXCHANGE
MECHANISM OF STOMATAL
OPENING AND CLOSING
Uptake of potassium ions by
cell guards
Sucrose concentration in the
guard cell sap
EFFECT OF WATER
DEFICIENCY
Fresh plants
Wilted plants
TRANSPIRATION
ENVIRONMENTAL FACTORS THAT
AFFECT
Temperature
Air humidity
Light intensity
Air movement
Process of water loss in form
of water vapour through evaporation
PHOTOSYNTHESIS
CHLOROPLAST STRUCTURE
Granum
Stroma
Thylakoid
REACTIONS
LIGHT-DEPENDANT
Occur in
Thylakoids
LIGHT-INDEPENDANT
Occur in Stroma
ADAPTATION OF INTERNAL
STRUCTURE OF LEAF
Spongy Mesophyll
Palisade Mesophyll
Upper Epidermis and
Lower Epidermis
Vascular Bundle
ENVIRONMENTAL FACTORS THAT
AFFECT
Temperature
Light intensity
Carbon dioxide concentration
COMPENSATION POINT
Rate of phosynthesis = Rate of respiration
PHOTOSYNTHESIS VS
RESPIRATION
PHOTOSYNTHESIS :
Light energy converted into
chemical energy
RESPIRATION :
Chemical energy converted into ATP
and heat