Explanation The countercurrent circulations help to exchange the dissolved substance by causing the movement of one of the solutes in one direction and other in the opposite direction. To maximize the concentration of oxygen in the fluids, the fishes perform countercurrent circulation through their gills. During this, the oxygen from the water moves inside the body of the fish. The resulting exchange results in the movement of carbon dioxide out of the body into the surrounding water...

12th Edition

ISBN: 9781260494570

Author: Raven, Peter

Publisher: MCGRAW-HILL HIGHER EDUCATION

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Question

Chapter 47, Problem 2DA

Summary Introduction

To determine: The countercurrent exchange system and the site where the most oxygen diffuse from water into the blood.

Introduction: Countercurrent circulation helps in exchanging dissolved substances. Therefore, to maximize the concentration of oxygen in the blood, the fishes eliminate carbon dioxide in the opposite direction that is opposite to the movement of oxygen and gets rid of carbon dioxide at the same time.

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Chapter 47 Solutions

Biology

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Solution Summary: The author describes the countercurrent exchange system and the site where the most oxygen diffuses from water into the blood.

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