The insulin receptor is a combination of four subunits held together by disulfide linkages: 

Two alpha subunits 

Two beta subunits

TLS Online TPP Program

#Id: 10359

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 8549

#Unit 1. Molecules and their Interaction Relevant to Biology

The irreversible inhibition involves reactions with a functional group, such as hydroxyl or sulphydryl, or with a metal atom in the active site or a distinct allosteric site.

TLS Online TPP Program

#Id: 9554

#Unit 11. Evolution and Behavior

Alfred Russel Wallace - Who was collecting specimens in the Malay Archipelago, had independently conceived of natural selection

TLS Online TPP Program

#Id: 7300

#Unit 6. System Physiology – Plant

Crassulacean acid metabolism (CAM). Temporal separation of CO2 uptake from photosynthetic reactions: CO2 uptake and fixation take place at night, and decarboxylation and refixation of the internally released CO2 occur during the day. The adaptive advantage of CAM is the reduction of water loss by transpiration, achieved by the stomatal opening during the night.

TLS Online TPP Program

#Id: 6410

#Unit 2. Cellular Organization