Answer:
Explanation:
Proteins in the plasma membrane have several functions based on their components, location etc. For instance, if the protein transcends the entire plasma membrane it could be a transport protein, responsible for the import and export of certain molecules between the cell and the extracellular matrix (ECM). If the proteins are resting at the surface of the cell, facing the ECM, their role could be to detect components in the ECM, relaying a series of messages back to the nucleus so that the cell can ‘decide’ what it should do with this information (is it being told it should undergo apoptosis, should it begin to divide, should it migrate?). As well as this, it could be involved in the detection of foreign bodies such as pathogens. This is an extremely job for these proteins because if the cell does come in contact with a pathogen, the cell can use these proteins to engulf the pathogen and through a series of steps, present the antigen on their major histocompatibility complexes (either 1 or 2 depending on the cell type) or HLA’s for human cells. Thus it can be concluded that protein functions vary widely in the plasma membrane and due to the vast number of proteins that can be found there, it’s difficult to narrow down the exact main of functions of all these proteins put together.
Answer:
This mutation will affect the fetus homoglobin"s affinty to bind oxygen molecule.Basically this mutation will decrease the affinity of fetus hemoglobin for oxygen.
Explanation:
IN fetus gamma chains are synthesized, because the gamma chain has low affinity for 2,3 bisphosphoglycerate and high affinity for oxygen. As a result the fetus hemoglobin will always remain in oxyhemoglobin state or R state or Relaxed state.
This will ultimately result in the continuous supply of oxygen to the fetus for its normal functioning.
If beta chain or adult hemoglobin is synthesized in mammalian fetus the the fetus can suffer from hypoxia as 2,3 bisphosphoglycerate bind to the cavity of beta chain of hemoglobin containing postively charged groups to decrease the affinity of hemoglobin for oxygen.
The correct answer is: the animal's body temperature is regulated only by environmental conditions
Answer:
Make the pic closer please
Explanation:
A little bigger
