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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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The red blood cell enzyme carbonic anhydrase contains a zinc cofactor. A diet deficient in zinc does not reduce the number of red blood cells, but it impairs respiratory function by reducing CO2, output. Explain why.

Summary Introduction

To explain: The reason why diet deficient in zinc does not reduce the number of red blood cells, but it impairs respiratory function by reducing CO2 output.

Concept introduction: The mineral zinc activates the enzymes of protein metabolism. It is a part of carbonate dehydratase and carbon dioxide transfer. It is important for the immune functions. Most carbonic anhydrase contains zinc ion in their functional site, and they are therefore classified as metalloenzymes.

Explanation

Carbonic anhydrase is the enzyme present in the red blood cell. To maintain the structure and the function of carbonic anhydrase, zinc is very essential. The enzyme carbonic anhydrase catalyzes the reaction between carbon dioxide and the water to carbonic acid. And it is later converted to bicarbonate...

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