structureorganization213-page2

structureorganization213-page2 - In addition, plants have...

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Plant Structure and Organization - 2 Dependence on Water All life on earth depends on water. Plants’ metabolic dependence on water equals that of other organisms. Plants have means of conserving water as do animals. Plants use water pressure (turgor) to maintain strength in soft tissues Plants use water pressure to promote elongation and cell growth (increase in cell dimension). Water is the transport medium for plant nutrients throughout the plant body. Reproduction Plants have great reproductive versatility. Many plants reproduce both asexually and sexually. As plants evolved, dispersal via seeds versus spores (single-cell structures) provides an energy head start for establishing new plants as well as protection for the embryonic plant.
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Unformatted text preview: In addition, plants have evolved means to ensure successful sexual reproduction in the absence of mobility and means of dispersing young to new locations. Growth and Development Living organisms have growth and development. These processes are dependent on the instructions coded in molecules of DNA, the genetic molecule of life. Molecular biology is changing how we know about plant processes just as it is how we know about animals. In particular, the tiny Arabidopsis , often studied in growth and inheritance experiments in the laboratory, is proving to be an excellent genetic tool to look at the molecular events of plant development....
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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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