How Does Auxin Binding to the Auxin Receptor Trigger Cell

question 52

Multiple Choice

How does auxin binding to the auxin receptor trigger cell elongation?

• A)A signal transduction cascade causes additional proton pumps to be made,and those proteins pump protons up their concentration gradient and out of the cell.
• B)A signal transduction cascade causes proton channels to open,and protons flow down their concentration gradient and out of the cell.
• C)The auxin receptor is a proton channel that opens in response to auxin binding,allowing protons to flow down their concentration gradient and into the cell.
• D)The auxin receptor begins phosphorylating proton pumps,activating them to pump protons up their concentration gradient and out of the cell.
• E)A signal transduction cascade results in the opening of a water pore that allows water into the cell,causing it to swell.

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