Emil Fischer (1890) proposed a Lock and Key model to visualize substrate and enzyme interaction. According to this model, as one specific key can open only a specific lock, similarly a specific enzyme can (1)
Biology is the scientific study of life. The word biology has been deduced from two Greek words, memoirs and ensigns. Bios mean” Life” and ensigns means study, logic and discussion. Biology is the branch of
The diagnosis of any disease depends upon three things: History, examination and investigations. In ophthalmology. about 80% of the diseases are diagnosed by history and examination and about 20% cases need investigations. Therefore, detailed history
