BS 148H Lecture 9 - BS148HLecture9 16:53 Plants...

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BS 148H Lecture 9 16:53 Plants Plant Phylogeny and Diversity  Plants have many shared derived traits which are adaptations to life in land- air environment o Land plants are specialized w/ fatty-waxy cuticles and stomata to conserve  water o Vascular plants w/ “plumbing” whose purpose is to transport water  throughout o Seed plants  Vascular and nonvascular o Flowering plants  Adaptation to attract pollenators (such as bees) Photosynthesis Uses light energy to split H 2 O release O 2  and makes ATP and NADPH, and  put the hydrate in carbohydrate  The Calvin Cycle uses ATP and NADPH to synthesize complex organic  molecules: sugars: glucose (C 6 H 12 O 6 ) --> starch, wood What is in sunlight plants can use? Light is electromagnetic energy, conveniently thought of as a wave. Shorter  wavelengths carry greater energy Leaves look green because chlorophyll does NOT absorb green, it absorbs 
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BS 148H Lecture 9 - BS148HLecture9 16:53 Plants...

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