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When you exercise:
Muscles require more energy
SO rate of respiration increases
SO breathing rate increases
SO Heart rate increases
SO larger gas concentration in lungs
SO rate of gas diffusion increases.
A Auxin stimulates cell division and controls growth away from/ towards light remember
the lovely diagrams???
G Gibberellin promotes cell division and helps seeds to sprout like Germination -
A Abscisic Acid inhibits growth because acid is BAD!!!
C Cytokinin Promotes cell division, found in root and leaf tips two soft c's!!!
E Ethylene helps fruit ripen (think Bananas!!!)