Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich consequence results when intense light triggers isomerization in retinal molecules?
A)Signal transduction activating rhodopsin✓
B)Increased GTP hydrolysis commences
C)Cyclic GMP phosphodiesterase shuts down
D)Hyperpolarization impeding calcium influx
💡 Explanation
Isomerization initiates phototransduction; because light causes a change in retinal's molecular geometry, it activates rhodopsin via conformational change. This rather than halting hydrolysis or calcium influx, which occur later because the initial activation kickstarts the cascade.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which risk increases when a high-power laser etcher exceeds design irradiance?
- Which outcome results when a Stirling engine cycles too rapidly?
- Which outcome occurs when wave functions describing electron orbitals spatially overlap?
- Which process decreases current flow when applying increasing voltage across solid-state electrolyte in battery?
- Which phenomenon leads antenna near a conducting surface interfering constructively receiving radio waves?
- Which mechanism alters the thermal conductivity constant governing heat dissipation in a silicon wafer during laser annealing?
