medium · MCAT bio-biochem
In the human eye, the process of phototransduction is initiated when light strikes a rod cell.
Which chemical event specifically triggers the biological signal?
- All-trans retinal is isomerized to 11-cis retinal.
- Rhodopsin is phosphorylated to its inactive state.
- Retinal is converted into Vitamin A directly.
- 11-cis retinal is isomerized to all-trans retinal.
Sign up free to see the explanation and track your rank →
More MCAT bio-biochem practice
- What genetic term describes a single gene influencing multiple seemingly unrelated traits?
- In the human ear, sound waves cause fluid in the cochlea to… — Which cells are responsible
- An electrophysiologist observes a neuron at its resting memb… — Which ion is primarily res
- Which structure is most likely dysfunctional?
- Which organelle would you expect to be exceptionally well-developed in these cells?
- Which molecule acts as a 'fluidity buffer' in animal cell membranes?
- A scientist is tracking the movement of a secreted protein. If the protein has just left t
- A molecule moves into a cell against its concentration gradient using energy provided by a