Organization of plant cells; photosynthesis; Alkaloids and flavonoids; plant hormones. Biosynthesis of carotenoid pigments; Biochemistry of plant development; The plant cell wall structure, formation and growth; Lignin formation; Free amino acids, pyrimidines, purines and nucleosides in plants; Metabolism of auxins, gibberellins and cytokinins; synthetic growth regulators and herbicides and herbicides; Structure – function relationship of plant hormones.