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    Hi there!
    I came across a question in a past paper asking for 3 characteristics of haemoglobin that make it a good respiratory pigment.
    Any ideas? I can't find the answer in any of my textbooks but I'm sure the teacher mentioned it in class once and I just don't remember the details.
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    (Original post by ellaz157)
    Hi there!
    I came across a question in a past paper asking for 3 characteristics of haemoglobin that make it a good respiratory pigment.
    Any ideas? I can't find the answer in any of my textbooks but I'm sure the teacher mentioned it in class once and I just don't remember the details.
    You're better off asking your teacher, but there are a number of characteristics of haemoglobin: it has high oxygen affinity in the lungs and low oxygen affinity in the tissues, each haemoglobin molecule can carry 4 oxygen molecules and also haemoglobin binds oxygen in a cooperative way, which is important because it means that small changes in oxygen concentration in the tissues lead to a large release of oxygen from haemoglobin, so this leads to a better oxygen supply in tissues
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    Thank you! I sent her an email
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