although nitrogen is present more than O2 in air then why Hb carries O2 or CO2 only ............
2006-09-16 02:43:30 · 10 answers · asked by COOL BUDDY 2 in Science & Mathematics ➔ Biology
all gasses enter our blood in a proportion tied to partial presures. Oxygen also binds with hemoglobin which caries it and it doesnt then count in the partial pressure budget so more oxygen can de carried by the blood
2006-09-16 02:53:07 · answer #1 · answered by robert m 2 · 0⤊ 0⤋
actually all the gases enters in our body but Hb which is present in the blood. Hb has highly affinity to O2 so it attracts the o2 present in the air and other gases are released by the process of exhalation.
2006-09-16 10:25:54 · answer #2 · answered by soumya_acharya_16 1 · 0⤊ 0⤋
This is not actually true. Other gases can indeed combine with our hemoglobin. The danger of Carbon Monoxide (CO) is that it combines with hemoglobin and then does not release, thereby preventing the hemoglobin from helping us to exchange Oxygen (02) and Carbon Dioxide (C02).
Nitrogen does indeed enter our system, but at standard temperature and pressure is inert. Divers however can suffer "the bends" which is caused by breathing regular air under pressure at depth and ascending to quickly. Nitrogen dissolved in the blood stream under pressure is release as bubbles in the body causing pain in joints and muscles. Treatment involves the use of a decompression chamber.
The list of other "interactive" gases is too long to include here.
2006-09-16 09:51:31 · answer #3 · answered by Magic One 6 · 1⤊ 0⤋
it is not that only oxygen or or carbon dioxide enter the blood stream.all gases present in the atmosphere naturally move in with the air we breathe.it is only that oxygen and carbon dioxide have higher affinity for haemoglobin than most of the other gases except perhaps carbon monooxide.that is why haemoglobin is mostly found attached with either co2 or o2.except in the case of carbon monoxide poisoning which has hundereds times more affinity for haemoglobin than co2 or o2 and furthermore it binds covalently to it and thus the reaction is irreversible and may lead to death.
2006-09-16 10:15:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
this is because the haemoglobin in the blood has affinity on for oxygen ,thus at the lungs where blood comes into contact with air only oxygen is picked up and not any other gases
2006-09-17 03:43:29 · answer #5 · answered by bhaumik r 1 · 0⤊ 0⤋
Oxygen molecules (O2) can bind to the iron atoms in the hemoglobin molecules in blood. Other gases like H2S, chlorine (Cl2), and HCN can also be adsorbed into human cells, causing cell damage.
2006-09-16 09:48:25 · answer #6 · answered by Jack 1 · 0⤊ 0⤋
because it has more affinity towards heamoglobin n due to selection of gases in internal nares of our respiratotr system all oher gases cant enter
2006-09-16 10:11:40 · answer #7 · answered by chantidec24 1 · 0⤊ 0⤋
firstly its gods invention. secondly heamoglobin present in our blood only has the affinity for oxygen
2006-09-16 12:40:09 · answer #8 · answered by surpal1987 1 · 0⤊ 0⤋
WE BREATHE ALL GASES BUT OUR LUNGS THROW OUT ALL GASES EXCEPT OXYGEN WHICH IS THEN ALLOWED TO MIX WITH THE BLOOD.
2006-09-16 11:05:05 · answer #9 · answered by abhishekr 2 · 0⤊ 0⤋
beecause it is through veins, pumped in by the heart
2006-09-16 09:46:35 · answer #10 · answered by kimmy3 3 · 0⤊ 0⤋