wwhat are haemoglobin buffer systems ?explain them?
Answer / akash
Haemoglobin buffering capacity depends on its oxygenation
and deoxygenation.inside the erythrocytes co2 combines with
H2O to form carbonic acid under the action of carbonic
anhydrase.
at the blood ph 7.4 H2CO3 dessociates into h ion and hco3
ion.
Oxyhaemoglobin on the other side loses O2 to form
deoxyhaemoglobin which remains undessociated.
HBO2 ION->HB ION+O2
HB ION+H2CO3->HHB+HCO3 ION
some of the HCO3 ion diffuses out into plasma to balance
intracellular and plasmabicarbonates. chloride shift takes
place.
HHBO2 produced in lungs by oxygenation of HHB ionises into
H ion and HBO2 ion .
released hydrogens are buffered by hco3 ion inside r.b.c to
form h2co3 which dessociates into h2o and co2 by carbonic
anhydrase.
hco3 return from plasma to r.b.c and escapes in alveoli.
| Is This Answer Correct ? | 24 Yes | 7 No |
Concerning their biological function what is the difference between dna and rna?
What is the numeric relation between pyrimidine and purine bases in the dna molecule? Is that relation valid in rna molecules?
which property among the following generally decreases from top to bottom in a group 1a? 1. Electropositive, density, basic nature, classical reactivity
What are enzymes?
How to name a glycosidic bond?
Is there difference between the initial and the final energy levels in catalyzed and non-catalyzed reactions?
give the co-ordination number of cscl?
Who proposed VSEPR theory? What does it explain?
How can energy change in the formation of NACL be determined?
Explain what is the primary structure of a protein? What is the importance of the primary structure?
In which forms arsenic impurities present in drug.
What factors can change the pKa value of an amino acid residue, and in which direction?