John asked in Science & MathematicsBiology · 3 weeks ago

Which of these acts as a signal molecule in the cytoplasm of a cell? A. Receptor protein B. Second messenger C. Transport protein D. Enzyme?

2 Answers

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  • 3 weeks ago

    B. Second messenger

  • 3 weeks ago

    Answer:A

    Why?

    A. Inside cell but receive do not signal

    B. Is extracellular not in cytoplasm.

    C. Membrane protein

    D. Not a MOLECULE

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