Which of the following processes does NOT take place in rod cells when they are exposed to light?

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Rhodopsin undergoes conformational changesTransducin becomes activatedIntracellular levels of cGMP declineSodium ion channels remain open

Explanation

When rods detect light, rhodopsin changes its structure, activating transducin. This leads to a reduction in cGMP inside the cell, causing sodium channels to close rather than open. Therefore, the opening of sodium channels does not occur in response to light.