Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain Transport of Oxygen by Red Blood Cells
Oxygen combines with haemoglobin, i.e., the red pigment in red blood cells. It combines with oxygen in the lungs, transports it around the body and releases the oxygen to cells that need it to form oxyhaemoglobin. Haemoglobin, you may already know, is a protein made up of 4 subunits, each of which contains a heme moiety attached to a polypeptide chain. Heme, is a complex made up of a porphyrin and one atom of ferrous iron. Each of the 4 iron atoms can bind reversibly one oxygen molecule. The iron remains in the ferrous form and the resulting combination with oxygen is known as oxygenation. The entire process can be represented as:
Hb4 + O2 → Hb4O2
Hb4O2 + O2 → Hb4O4
Hb4O4-k O2 → Hb4O6
Hb4O6 + O2 → Hb4O8
Hb4 stands for haemoglobin and O2 stands for oxygen.
The tension of oxygen in the arterial blood is about 90 -100 mm Hg and oxygen tension in the tissues is less than 40 mm Hg. When the arterial blood passes through the tissues, it carries oxyhaemoglobin. As the oxygen tension in the tissues is much lower, oxygen tension in the arterial blood falls. The oxyhaemoglobin in the red blood cells is exposed to low tension of oxygen, it dissociates and oxygen leaves the blood stream and enters the tissue. The equilibrium of oxyhaemoglobin and nonbonded haemoglobin at various partial pressures can be best studied through a oxygen dissociation curve.
what is non renewable and renewable resource
Explain the functions of Multicellular Organism Multicellular organisms are specialized quite similar to a team that does a lot of work efficiently as compared to a single pers
Do I need to pay 130.00 now?
Structure of Atoms Elements are pure substances. Elements are composed of a single kind of atom, as opposed to compounds which contain two or more kinds of atoms (see lesson 5).
Formation of the solar system: This theory is based on the assvmption that the Sun and all the planets were formed from a huge rotating cloud df interstellar gas and dust.
Proteins may be classified broadly into three groups: a) Simple proteins, b) Conjugated proteins, and c) Derived proteins.
Emergence of chemistery: Chemistry The level of chemical knowledge and practices in the new ordered society is reflected in the pottery, iron tools and glass objects found at
Introduction : Here you have need to about the fire hazards, various causes of fires and the precautions to be taken to avoid them. You also learnt about various types of fire ext
INTRODUCTION : You would recall from your study of Unit 11 that LPG (liquefied petroleum gas) and other compressed gases can pose a danger in the lab. The gas (LPG) supply distrib
Explain the Hormones from the Islets of Langerhans The cells which make up the Islets of Langerhans are found in clusters, distributed throughout the substance of the pancreas.
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd