<prompt> Which of the following is a component of the visual pigment rhodopsin?b-CaroteneRetinalRetRetinoic acid  <response>: Retinal is a component of visual pigment rhodopsin. Rhodopsin mol. wt. 35,000 Daltons plays the pivotal role in vision. It is a membrane protein found in the photoreceptor cells of the retina. Rhodopsin is made up of the protein opsin and 11-cis-retinal. Ref: DM Vasudevan - Textbook of Biochemistry, 8th edition, page no: 455 