This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
All are components of basement membrane except - 
Select and explain. 
A. Nidogen, B. Laminin, C. Entactin, D. Rhodopsin
D: Rhodopsin
Answer: D: Rhodopsin 
Explanation: fibronectin -a major component of the interstitial ECM laminin -a major constituent of basement membrane The GBM consists of collagen (mostly type IV), laminin, fibronectin, entactin(nidogen), and several other glycoproteins. rhodopsin is one of the visual pigment in the eye, present in rods, helps in dim light vision ref robbins pathology 9th ed page 24, 200