PlantKingdom213-page1 - obtain their nutrients from both...

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Introduction to the Plant Kingdom - 1 The Plant Kingdom comprises a large and varied group of organisms that have the following characteristics in common. Plants are: Eukaryotic Photosynthetic, with primary chloroplasts containing chlorophyll a and b Multicellular with tissue development Sexually reproducing with an "alternation of generations" life cycle Most plants are terrestrial. Plants evolved from green algae ancestors (Charophyceae) that successfully inhabited land. When, when included with the plant kingdom, the Charophytes and Plants form the Streptophyes. As we have discussed, plants must
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Unformatted text preview: obtain their nutrients from both air and soil, and much of their structure relates to the need to maximize obtaining nutrients and water, minimizing water loss and protecting the plant from damage while surviving on land. Plant Kingdom and Alliances To this end plants evolved (details later) : • Protective waxy surface layers to minimize desiccation – cuticle • Gas exchange structures to circumvent the cuticle – stomata • Growth from apical meristems • Increase in dimension with conducting and support tissues – the vascular tissue...
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This note was uploaded on 01/08/2012 for the course BIO 213 taught by Professor Makina during the Fall '09 term at SUNY Stony Brook.

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