A fish breathes by first opening its mouth to gulp water in and then opening its gill flapsto let water out. This ensures that there is a constant flow of fresh water through its gill chambers,which are the pockets that contain the gills.
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How do fish breathe underwater?
Most fish can breathe underwater using their gills. In the breathing process, a large volume of water enters through the mouth and passes through the gills. These gills have comb-like feathery filaments that provide a large surface area to absorb oxygen from the water.
How does respiration work in fish?
Respiration In Fish: How Do Fish Breathe? Respiration in fish or in any entity living in the water differs from that of human beings. Organisms such as fish, living in water, need oxygen to breathe for cells to sustain. Fish possess specialized structures to carry out the respiratory function, helping them inhale oxygen dissolved in water.
How do fish get oxygen from water?
They take small amounts of water through their mouths and then they filter oxygen from this water through their gills. When water flows over the membranous walls of the gills, the oxygen present in the water, becomes soluble in blood cells of fish, providing them oxygen. Loading…
Do fish need lungs to breathe?
As fishes do not have a respiratory system that includes lungs, they do the same job using their gills. However, they do need a continuous supply of oxygen, to respire effectively. How do fish breathe underwater?