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19 March, 17:39

Oxygen dissociation curve is a. sigmoid b. parabolic c. hyperbolic d. straight line

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  1. 19 March, 17:44
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    sigmoid

    Explanation:

    The sigmoid shape of the dissociation curve is because

    As the first oxygen molecule binds to haemoglobin, it increases the affinity for the second molecule of oxygen to bind. Subsequently, haemoglobin attracts more oxygen.
  2. 19 March, 17:47
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    Answer: sigmoid
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