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How can oxidation change the colour of meat?
The purplish-red colour of meat is a result of the presence of myoglobin. Iron has an oxidation state of +2 in myoglobin and when it is oxidized to Fe3+ it will produce a brown colour.
What best describes the shape of myoglobin which in many ways is a typical protein?
Myoglobin has a globular shape, which is typical of many proteins. This structure consists of a single polypeptide chain that folds into a compact, spherical form, allowing it to effectively bind and store oxygen in muscle tissues. The presence of heme groups within its structure contributes to its functionality and stability. Overall, myoglobin's shape facilitates its role in oxygen transport and storage.
Is mitochondria green?
No. As far as many scientists are concerned, mitochondria have no colour. Chloroplast, the organelle which creates glucose in plants, is green.
How myoglobin is Distributed in cardiac disorders?
In cardiac disorders, myoglobin levels in the blood may increase due to damage to heart muscle cells. Elevated myoglobin levels can indicate myocardial infarction (heart attack) or other types of cardiac injury. Myoglobin is released into the blood when heart muscle cells are damaged, making it a useful biomarker for detecting and monitoring cardiac disorders.
Muscles contain an oxygen storage pigment called what?
Muscles contain an oxygen storage pigment called myoglobin. Myoglobin helps muscles store and transport oxygen for energy production during exercise.
What gives oxidative muscle fibers their red colour?
Presence of myoglobin
Is myoglobin an enzyme?
No, myoglobin is not an enzyme. It is a protein that is responsible for binding and storing oxygen in muscle cells. Its main role is to facilitate the storage and release of oxygen to muscles during physical activity.
What color is the cardiac muscle?
The presence of myoglobin gives the muscle tissue its red color.
What concept explains the presence of mitochondria in cell?
The concept that explains the presence of mitochondria in cells is the endosymbiotic theory. Mitochondria in cells derived from the extra embryonic membranes.
What determines where energy production will continue into the mitochondria?
The presence of oxygen. Oxygen is needed for mitochondria
Why are slow twitch fibers re in colour and why are fast twitch fibers white?
Presence of myoglobin makes the difference between the two.
What compound stored oxygen inside skeletal muscle cells?
keratinThe correct answer is NOT keratin... the correct answer is myoglobin. This is the oxygen-binding pigment in muscle.
Is myoglobin and myoglobulin the same?
No, myoglobin and myoglobulin are not the same. Myoglobin is a protein found in muscle tissues that binds and stores oxygen, while myoglobulin is a misspelling or incorrect term for myoglobin.
What is the role of the Myoglobin?
Myoglobin is a protein found in muscle tissue of vertebrates that is iron- and oxygen-binding. It is a primary oxygen-carrying pigment of muscle tissues and is related to hemoglobin, but only found in the bloodstream after a muscle injury.
How does exercise increase myoglobin stores?
Myoglobin is a protein within the muscle tissue which acts as an oxygen carrier. As a long term effect of exercise. The ability of the muscles to store myoglobin is increased. Because muscles increase their oxidative capacity through regular exercise, the myoglobin stores also increase because they get used to the demands of exercise and work placed upon them so increase stores as they will be needed. The increase in oxidative capacity is achieved by an increase in the number of mitochondria within the muscle cells, an increase in the supply of ATP and an increase in the quantity of enzymes involved in respiration.
How can oxidation change the colour of meat?
The purplish-red colour of meat is a result of the presence of myoglobin. Iron has an oxidation state of +2 in myoglobin and when it is oxidized to Fe3+ it will produce a brown colour.
What best describes the shape of myoglobin which in many ways is a typical protein?
Myoglobin has a globular shape, which is typical of many proteins. This structure consists of a single polypeptide chain that folds into a compact, spherical form, allowing it to effectively bind and store oxygen in muscle tissues. The presence of heme groups within its structure contributes to its functionality and stability. Overall, myoglobin's shape facilitates its role in oxygen transport and storage.
