Wednesday, January 25, 2012

20. a long science problem if you dont mind?

It has been discovered that plants utilize chemical signals for communication. Some of these chemicals are released from leaves, fruits, and flowers and play various roles in plant development, survival, and gene expression. For example, bean plant leaves infested with spider mites release chemicals that result in an increase in the resistance to spider mites in uninfested leaves on the same plant and the expression of self-defense genes in uninfested bean plants nearby.



Plants can also communicate with insects. For example, corn, cotton, and tobacco under attack by caterpillars release chemical signals that simultaneously attract parasitic wasps to destroy the caterpillars and discourage moths from laying their eggs on the plants.



Identify the specialized structures in the cell membrane that are involved in communication.



plz help me with this

20. a long science problem if you dont mind?
the structures in the cell membrane that are involved with communication are the receptors and the peripheral proteins. Duh. by the way peripheral proteins are only for intracellular communication because they are only found on the cytoplasmic side of the cell.


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