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Communication occurs among the cells in a multicellular organism

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					Communication occurs among the cells in a multicellular organism. Choose ONE of the following
examples of cell-to-cell communication, and for each example, describe the communication that
occurs and the types of responses that result from the communication.
    Communication between two plant cells.
    Communication between two animal cells.

Plant Cells
Communication 6 points max
__ Plasmodesmata defined
__ Hormone produced in location different from where they are active
__ Hormone and cell membrane interaction explained
__ Hormone and receptor protein interaction explained
__ Diffusion defined and linked to hormones
__ Xylem/Phloem defined and linked to diffusion
__ Specific hormone identified

Response 6 points max
__ Thigmotropism defined
__ Gravitropism.geotropism defined
__ Phototropism defined
__ Auxin linked to correct effect
__ Gibberellin linked to correct function
__ Regulation of transcription in nucleus
__ Regulation of cytoplasmic activity
__ Signal amplification

Animal Cells
Communication 6 points max
__ Gap junction defined
__ Hormone produced in location different from where they are active
__ Hormone and cell membrane interaction explained
__ Hormone and receptor protein interaction explained
__ Diffusion defined and linked to hormones
__ Synapse defined
__ Specific hormone identified

Response 6 points max
__ Regulation of transcription in nucleus
__ Regulation of cytoplasmic activity
__ Signal amplification
__ Muscle contraction
__ Transmission of nerve impulse
__ Specific hormone linked to correct response

				
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