This video relates to the concept of signal transduction, its types and features of signal transduction and basic terminologies like specificity, amplification, desensitization, together with types of receptors involved in the interaction. TIMELINE: 0:06 Introduction 0:56 Types of signal transduction 0:56 Types of signals in which cell responses 1:36 Features of signal transduction 1’;51 Specificity 2:37 Amplification 3:05 Desensitization / adaptation 4:13 Integration 5:00 Types of receptors 5:16 Images and explanation of receptors types 5:51 End