This manual covers Plant physiology--structure and function---charts and experiments, based on the following guidelines:
I. Preservation of life is guaranteed by:
A. The functions of the vegetative life: respiration, digestion, circulation, excretion.
B. The functions of the life of relation: discover the best environment, defense, movement, sensitivity.
II. The conservation of the species is guaranteed by:
A. Reproductive functions: The possibility of producing other lives in great quantities.
B. Protective functions.