NEET BIOLOGY Unit 20 MORPHOLOGY IN FLOWERING PLANTS INTRODUCTION : Morphology – (Morphe = form + logos = study). It deals with the study of forms and features of different plant organs like roots, stems, leaves, flowers, seeds, fruits etc. The body of a typical angiospermic plant is differentiated into : (1) An underground root system (2) An aerial shoot system. The shoot system consists of stem (including branches), leaves, flowers and fruits. The roots, stems and leaves are vegetative parts, while flowers constitute the reproductive part. CLASSIFICATION OF PLANTS : Depending upon their life span, plants are classified as – a. Annuals – Plants that complete their life cycle in one year or single growing season or few weeks to a few months. They pass the unfavourable period in the form of seeds eg. Mustard, Pea. b. Biennials – Plants that complete their life cycle in two years-growing, vegetative and storing food in the first year, flowering and fruiting...
