egg apparatus

A group of three cells in the seven-celled embryo sac of an angiosperm (flowering plant) consisting of the egg cell and two associated cells called synergids. The egg apparatus is located at the end of the embryo sac closer to the micropyle (the opening through which pollen nuclei enter the ovule.) The synergids are thought to help direct the pollen nucleus to the egg cell as part of the process of double fertilization characteristic of angiosperms. The synergids degenerate after the egg cell has been fertilized. See more at embryo sac.

Words nearby egg apparatus

egestion, egg, egg albumin, egg and dart, egg and spoon race, egg apparatus, eggbeater, egg-binding, egg-bound, egg case, egg cell

单词	egg apparatus
释义	egg apparatus A group of three cells in the seven-celled embryo sac of an angiosperm (flowering plant) consisting of the egg cell and two associated cells called synergids. The egg apparatus is located at the end of the embryo sac closer to the micropyle (the opening through which pollen nuclei enter the ovule.) The synergids are thought to help direct the pollen nucleus to the egg cell as part of the process of double fertilization characteristic of angiosperms. The synergids degenerate after the egg cell has been fertilized. See more at embryo sac. Words nearby egg apparatus egestion, egg, egg albumin, egg and dart, egg and spoon race, egg apparatus, eggbeater, egg-binding, egg-bound, egg case, egg cell The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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