3.5: Understand the Conditions Needed for Seed Germination

GERMINATION: Process Controlled by Enzymes in Which the Seed Develops into a Plant

Diagram:

                                                           

STRUCTURE:

STRUCTURE	DESCRIPTION
EMBRYO	Young Root (Radicle) and Shoot (Plumule) that will Become the Adult Plant
FOOD STORE	For Aerobic Respiration to Release Energy for Growth of Seed, E.g, Growth of Roots
SEED COAT	Optimum Temperature for Enzymes to Increase Growth Rate and Enzyme Activity

CONDITIONS NEEDED FOR SEED GERMINATION:  

FEATURE	EXPLANATION
WATER	Allows the Seed to Swell with Water and Activates Enzymes to break down the Food Reserves in Seeds (Starch)
OXYGEN	For Aerobic Respiration to Release Energy for Growth of Seed, E.g, Growth of Roots
WARMTH	Optimum Temperature for Enzymes to Increase Growth Rate and Enzyme Activity