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Biology 20B- May 28

Biology 20B- May 28 - endosperm-ovules seeds-ovaries fruits...

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Lecture Notes Biology 20B May 28 Developmental Process: Inside Ovule: Ovule meiosis 4 haploids (N) 3 die, leaving megaspore mitosis X3 8 haploids embryo sac, megagameophyte; includes 2 polar nucli and a egg Inside Anther: Pollen mother cell 4 microspore pollen grain (tube cell + generative cell 2 sperm cells) Double Fertilization - 2 sperm cells bottom of embryo sac - 1 sperm cell + egg embryo (2N) zygote - 1 sperm + polar nucli triploid (3N)
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Unformatted text preview: endosperm-ovules seeds-ovaries fruits Simple fruit- single ovum ***Aggregate Fruit- develops from several Multiple Fruit- stem and lots of flowers develop; develops from many carpels of many flowers Photosynthesis 1. converts hv ΔG a. 3CO 2 + 6H 2 O + hv C 6 H 12 O 6 + 6O 2 2. hv ATP + NADPH Carbon Fixation-conversion of CO 2 complex reduced molecules 2 Steps- hv reactions-photo part- calvin cycle-synthesis...
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