Which one of the following statements regarding haemoglobin is correct?

A Haemoglobin present in RBC can carry only oxygen but not carbon dioxide
B Haemoglobin of RBC can carry both oxygen and carbon dioxide
C Haemoglobin of RBC can carry only carbon dioxide
D Haemoglobin is only used for blood clotting and not for carrying gases.

Correct Answer: Haemoglobin of RBC can carry both oxygen and carbon dioxide

During respiration, about 97% of oxygen is transported by Red Blood Cells in blood and the remaining 3% gets dissolved in the plasma.Around 20-25% of carbon dioxide is carried by haemoglobin as carbamino-haemoglobin.

Oxygen enters the blood from the lungs and carbon dioxide is expelled out of the blood into the lungs. The blood serves to transport both gases. Oxygen is carried to the cells. Carbon dioxide is carried away from the cells.

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Related Questions

Oxy-haemoglobin dissociation curve shifts to the right in
A Exercise
B Haemorrhagic shock
C Alkalosis
D High foetal haemoglobin
E Hypothermia
Fetal haemoglobin
A Consists of two alpha and two gamma chain
B Is approximately 80% of the total haemoglobin at term
C Causes the oxyhaemoglobin dissociation curve to be shifted to the right
D Is undetectable in adult
E Is unaffected by sickle cell disease
Haemoglobin is an important component of
A RBC
B WBC
C Platletes
D Cytoplasm
Function of haemoglobin is
A To transport oxygen
B Destruction of bacteria
C To check the loss of blood
D None of the above
Carbon monoxide has ________ greater affinity for haemoglobin as compared to oxygen.
A 1000 times
B 210 times
C 20 times
D 2 times
Metal present in Haemoglobin
A Copper
B Iron
C Mangnese
D Zinc
Haemoglobin is a/an
A Amino acid
B Biological catalyst
C Protein
D Enezyme
Call me if you have any problems regarding your work.' Here 'regarding' is a/an
A gerund
B apposition
C preposition
D conjunction
I know nothing regarding this matter. Here 'regarding' is a _.
A Gerund
B Preposition
C Apposition
D Conjuction
Each of the following problem has a question and two statements which are labeled 1. and. Use the data given in 1. and 2. to decide whether the statements are sufficient to answer the question.Select one of the following . a.Statements (1) ALONE is sufficient,but (2) ALONE is not sufficient. b.Statements (2) ALONE is sufficient,but (1) ALONE is not sufficient. c. Both statement TOGETHER are sufficient but statement alone is sufficient . A fly crawls around the outside of a circle once.A second fly crawls around the outside of a square once.Which fly travels further ? (1) The diagonal of the square is equal to the diagonal of the circle.(2) The fly crawling around the circle took more time to complete has journey than the fly cawing around the square.
A A
B B
C C
D D

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