If the surface area of the organism is small, then there is no problem with getting all the oxygen needed. If the surface area of the organism is large, therefore a special respiratory surface is needed. An example is lungs, gills. The ratio of surface area to volume in a small organism is greater than the ratio in a large organism.
Leaves are broad, thin and flat to provide a large surface area, to absorb sunlight for photosynthesis. :)
large area
The Alveoli
So it is more efficient.
It is important that the gills of a crayfish give them a large surface area because it helps the crayfish to breathe. The bigger the surface area, the more oxygen in the crayfishes system.Ê
Gills are the underwater equivalent of our lungs and they need those features in order to extract enough oxygen from the water so that they can breath.
Large surface area
large surface area.
The large surface area of the gills in crayfish allows for efficient absorption of oxygen from water and release of carbon dioxide. This is important for the crayfish as it helps them to breathe and obtain the necessary oxygen for cellular respiration.
Gills are composed of thousands of filaments which are covered in lamellae (only a few cells thick and contain blood capillaries). This creates a large surface area and a short distance for gas exchange.
Whale shark gills are similar in structure to other fish gills. Oxygenated water is passed over the gills which have a rich, near surface blood supply and gases are exchanged between the blood and the water. The gills are feathery and have a large surface area so that there is enough gas exchange to keep the fish supplied with the oxygen it needs.
If the surface area of the organism is small, then there is no problem with getting all the oxygen needed. If the surface area of the organism is large, therefore a special respiratory surface is needed. An example is lungs, gills. The ratio of surface area to volume in a small organism is greater than the ratio in a large organism.
Oh, isn't that just wonderful? The feathery nature of gills is like a delicate dance in the water, creating a large surface area for oxygen to be absorbed. This is important for our underwater friends, allowing them to breathe easily and thrive in their beautiful aquatic homes. Just imagine the gentle flow of water through those feathery gills, providing life and energy to all that call the water their home.
Aquatic arthropods typically exchange gases through gills. Gills are structures that are rich in blood vessels and provide a large surface area for gas exchange to occur, allowing the arthropods to extract oxygen from the water and release carbon dioxide.
The gill provide a very large surface area for the space that they have.
To hold more oxygen.