Skip to content
New summer mock series is live Attempt timed papers for SSC, banking, and engineering entrances with updated syllabi for this season. View exams

Question

Molecular switches toggle between

Options

Choose one · Correct answer highlighted

Explanation

Many signaling proteins function as binary molecular switches that toggle between inactive and active conformations. Guanine-nucleotide-binding proteins switch by exchanging GDP for GTP; kinases and phosphatases switch by reversible phosphorylation. These switches allow cells to make rapid, decisive transitions in response to external cues while remaining fully reversible when the stimulus is withdrawn.