answersLogoWhite

0


Best Answer

Myoglobin has a very high affinity for oxygen, meaning it binds it very strongly. At very low oxygen concentrations in the cell, myoglobin releases its oxygen, despite the high affinity, simply because there are too few oxygen molecules around to rebind to the myoglobin when they are released naturally from the myoglobin (which usually occurs anyway).

Once the oxygen concentration increases again, returning to normal, oxygen molecules will collide with myoglobin. The myoglobin, with its high oxygen affinity, will strongly bind any oxygen that meets it, replenishing myoglobin's oxygen storage very quickly.

As myoglobin's affinity for oxygen is stronger the haemoglobin's, it will 'steal' oxygen from haemoglobin in the blood very easily, replacing its bound oxygen.

This binding system serves to release oxygen when it is needed if blood oxygen levels are reduced (due to high levels of exercise), but replenishes the supply when oxygen levels begin to rise again.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How can the oxygen store in myoglobin be replaced after use?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What do penguins breathe with?

Penguins use their lungs to breath.


How do muscles oxygenize?

Muscles receive their supply of oxygen the same as every other cell in your body does, via the capillary blood vessels. They do have their own form of hemoglobin, called myoglobin, which can trap and store excess oxygen for future use but that is relatively short lived.


What use has Ferrous sulfate in foods?

Ferrous sulfate in food is a type of iron and when ingested it helps your hemoglobin carries oxygen through your blood to tissues and organs, it also helps your muscles to store oxygen through myoglobin carrying ferrous sulfare.Please see related link below.


What if one half of your turkey is dark purple?

If you are referring to the difference between breast meat and the rest of the turkey, white meat results from WELL-RESTED muscles. Turkeys do not fly, so they do not need to use the breast muscles. Dark meat results from myoglobin, a subunit of hemoglobin. Myoglobin stores Oxygen for quick use in muscles. The darker the meat, the more myoglobin it had contained. The more myoglobin, the more those muscles were used by the bird. Myoglobin has no negative health effects on humans. However, many people prefer one type of meat (white or dark) over the other kind. Either one is safe to consume.


How do you know the dark meat in chicken?

Oxygen rich, slow muscles are iron-laden red-pigmented myoglobin supplied and therefore dark meat. Legs and thighs are dark meat on a chicken because it uses its legs 95 percent of the time. Fast-contraction muscle fibres' like the breast don't require as much oxygen, therefore lack myoglobin. These use glycogen (a carbohydrate) for fuel. In the absence of myoglobin, the muscles are "white". Chicken breast is white meat. Everything else is dark meat.


What color tube do you use for a myoglobin test?

red/gray mollted


What happens when we use the oxygen in our cells faster than it can be replaced?

You would get dehydrate which can be fatal.


Why is helium use to protect the constitution?

Humidified helium replaced oxygen to prevent further erosion


What do Cells use to break down glucose and store its energy in molecules of ATP?

oxygen :)


Why do you need water in the oxygen concentrator?

In a dry environment, the purpose of adding water to the oxygen concentrator is to moisturize the oxygen. Usually, we can add water or no water to the oxygensolve oxygen concentrator, this will not affect the use of the oxygen concentrator. It still needs to be confirmed with the store.


What are the dos and don't of oxygen tanks?

Don't store them without the caps.Don't use oil anywhere around them - pure oxygen in contact with oil is hypergolic. Don't get them close to an open flame. Do not drop them whatever you do. Store them away from flammable gases.


How can carbon dioxide be removed from the air and replaced by oxygen gas in submarine?

They use a 'gas exchange system' - usually chemicals that split the carbon dioxide molecules into atoms of oxygen and carbon. The oxygen is recycled back into the air in the submarine, and the carbon is retained for disposal.