STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
STRUCTURAL ORGANISATION IN ANIMALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increased surface area for absorption & capturing debris
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decreased surface area for absorption & capturing debris
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increased surface area for absorption of oxygen
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decreased surface area for absorption of oxygen
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Detailed explanation-1: -Microvilli on the surface of epithelial cells such as those lining the intestine increase the cell’s surface area and thus facilitate the absorption of ingested food and water molecules.
Detailed explanation-2: -The columnar epithelium of the stomach contains the mucus-secreting cells and in the microvilli, it is highly absorptive as it increases the absorptive surface area. The cells of columnar epithelium are elongated and laced side by side like a column.
Detailed explanation-3: -Microvilli, found in tightly packed arrays on the apical surfaces of polarized epithelial cells, increase the surface area of the cell exposed to the lumen to enhance absorption and secretion.
Detailed explanation-4: -Secretion: Epithelial tissue in your glands (glandular epithelium) can secrete (release) enzymes, hormones and fluids. Absorption: The epithelial lining of your internal organs, such as your liver and lungs, can allow the absorption of certain substances.