Explain how a diving marine mammal increases its supply of stored O2, in spite of the fact that its ...

diamonddiva007

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6 years ago

Explain how a diving marine mammal increases its supply of stored O2, in spite of the fact that its ...

Explain how a diving marine mammal increases its supply of stored O2, in spite of the fact that its
lungs are collapsed at depths below 25 meters.

What will be an ideal response?

Question 2

Llamas, which are customarily known as mountain dwellers, have hemoglobin with higher O2 binding
affinity than that of humans. That being said, how would you predict the llama hemoglobin-O2
dissociation curve would differ compared to that of a human (see diagram below)?
2014 Brooks/Cole, Cengage Learning

What will be an ideal response?

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bambino131913

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6 years ago

Answer to q. 1

Marine mammals increase their stores of O2 by: (1) increasing size-relative blood volume, (2)
increasing erythrocyte concentration, and (3) increasing their concentration of myoglobin in their
muscle.

Answer to q. 2

The slope of the llama hemoglobin-O2 dissociation curve would be steeper, effectively shifting the
curve to the left. Thus, the llama hemoglobin is shown to bind to O2 at lower partial pressures than that
of a human.

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diamonddiva007 Author

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6 years ago

Thank you for answering

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