[Campbell Biology P.1168] According to the provided text and diagrams, rhodopsin, the visual ... | Practice Question

According to the provided text and diagrams, rhodopsin, the visual pigment found in rods, is composed of which two main molecules?

  • A: Retinal and Vitamin A
  • B: Opsin and Rhodopsin
  • C: Retinal and Opsin
  • D: Cytosol and Disk Membrane

Explanation

The text states: 'Vertebrate visual pigments consist of a light-absorbing molecule called retinal a derivative of vitamin A bound to a membrane protein called an opsin. ... The visual pigment of rods, shown here, is called rhodopsin.' The diagram also clearly labels Retinal and Opsin as components of Rhodopsin.