Describe transport proteins in plasma, Biology

Assignment Help:

Explain Transport proteins in plasma

Transport proteins, embedded in lipid membranes, facilitate the import of nutrients into cells or the release of toxic products into the surrounding medium. Molecules which cannot move across the membrane by diffusion must cross the membrane with the help of transport proteins. As carriers of plasma, these  bind to small molecules and ions and transport them throughout the body. Few common examples include:

  • An iron-binding protein (transferrin) delivers ferrous ions to hemoglobin synthesizing loci.
  • Activity of ions, such as calcium, can be controlled by the ratio of free to bound species.
  • When hydrogen ions are bound, proteins act as buffers to minimize the change in pH.
  • Since cells are impermeable to proteins, they also participate in determining the distribution of ions and hence electrical potential difference across the cell membrane.
  • By virtue of osmotic activity, albumins mediate the distribution of body fluids between plasma and extracelluar compartments

 


Related Discussions:- Describe transport proteins in plasma

What is the difference between dna and rna, Concerning their biological fun...

Concerning their biological function what is the difference between DNA and RNA? DNA is the source of information for RNA production (transcription) and therefore for protein s

What is yersiniosis, What is yersiniosis? Give its symptoms. Yersiniosi...

What is yersiniosis? Give its symptoms. Yersiniosis caused by the bacteria Yersinia enterolytica.   •  Causes severe abdominal pain, fever and diarrhoea.

What is the difference between bacterial and animal cells, Q. Concerning th...

Q. Concerning the presence of the nucleus what is the difference between bacterial and animal cells? Animal cells (cells of living beings of the kingdom Animalia) have an inte

Define the functional properties of hydrocolloids, Define the functional pr...

Define the functional properties of hydrocolloids The hydrocolloids not only have the functional properties but also have nutritional characteristics. Most polysaccharide gums

Ventilation of tracheal system – passive suction ventilation, Ventilation o...

Ventilation of Tracheal System – Passive Suction Ventilation Many active insects and insects that live in environments where water is scarce cannot depend on diffusion alone t

Effect of destruction of microbial barriers, Q. Effect of Destruction of Mi...

Q. Effect of Destruction of Microbial Barriers? Physical damage to the integument allows microbial invasion of the underlying nutrient-rich tissues and it is a common observati

What is an oligopeptide, What is an oligopeptide? How is it different from ...

What is an oligopeptide? How is it different from a polypeptide? Peptide is the molecule produced by the union of amino acids through the peptide bond. Oligopeptide is a peptid

Explain about the blanching - food processing, Explain about the Blanching ...

Explain about the Blanching - Food Processing? Blanching is used for variety of purposes. It is defined as a mild heat treatment applied to tissue (usually plant) prior to free

Cat assay, CAT assay  is an enzyme assay. CAT stands for the chloramphenico...

CAT assay  is an enzyme assay. CAT stands for the chloramphenicol acetyl transferase, a bacterial enzyme which inactivates the chloramphenicol by acetylating it. CAT assays are man

What is meant by unsaturation or saturation of oils and fats, Q. What is me...

Q. What is meant by unsaturation or saturation of oils and fats? When it is said that a triglyceride is saturated it means that in its molecule the carbon chain is bound in its

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd