This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cell Physiology and Intercellular Connections, Subject name: Physiology
Type of collagen found in basement membrane - 
Select and explain. 
A. I, B. II, C. III, D. IV
D: IV
Answer: D: IV 
Explanation: Ans. is 'd' i.e., IV o Type IV collagen with laminin are the major constituent of basement membrane.Type of collagenDistributionType ISkin, tendon, bone, corneaType IIArticular cartilage, intervertebral disc. Vitreous humorType IIIFetal skin, cardiovascular systam, lung, reticular fiberType IVBasement membraneType VPlacenta, skin.