Capillaries are very thin and form almost web like structures. Because of how thin they are, they have a favorable surface area to volume ratio. Capillaries increase the surface area available for gas to diffuse into the blood. More suface area leads to more gas exchange.
because leaves play crucial role in photosynthesis and gaseous exchange
exchange of nutrients and gasses with tissues
exchange of nutrients and gasses with tissues
Capillaries are very small blood vessels found within the tissues of the body. Its primary role is to transport blood from arteries to the veins.
Alveoli exchange Oxygen with blood in capillaries
Exchange vessels are specialized structures within the body that allow for the exchange of gases, nutrients, and waste products between different body compartments. Examples include capillaries in the circulatory system, alveoli in the respiratory system, and nephrons in the renal system. These vessels play a crucial role in maintaining homeostasis and delivering essential molecules to tissues.
haemoglobin present in the RBC helps in gaseous exchange and transport in humans .. where as in plants its through stomata , cuticle , lenticels etc....
Endothelial cells make up the endothelium of capillaries. These cells form a single layer lining the interior surface of blood vessels, including capillaries, and play a crucial role in regulating the exchange of substances between the blood and surrounding tissues.
arterioles
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lightening help to fix gaseous nitrogen to more chemically reactive forms
erythrocytes