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CELL SIGNALING MCQs

Total Questions : 22 | Page 3 of 3 pages
Question 21. What could happen to the target cells in an animal that lack receptors for local regulators?
  1.    They could compensate by receiving nutrients via an α factor.
  2.    They could develop normally in response to neurotransmitters instead.
  3.    They could divide but never reach full size.
  4.    They would not be able to multiply in response to growth factors from nearby cells.
 Discuss Question
Answer: Option D. -> They would not be able to multiply in response to growth factors from nearby cells.
Question 22. Many signal transduction pathways use second messengers to:
  1.    transport a signal through the lipid bilayer portion of the plasma membrane.
  2.    relay a signal from the outside to the inside of the cell.
  3.    relay the message from the inside of the membrane throughout the cytoplasm.
  4.    amplify the message by phosphorylating proteins.
 Discuss Question
Answer: Option C. -> relay the message from the inside of the membrane throughout the cytoplasm.

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