{"id":1670,"date":"2020-07-09T09:32:42","date_gmt":"2020-07-09T09:32:42","guid":{"rendered":"https:\/\/murreeroad.org\/Biology10\/?p=1670"},"modified":"2020-07-09T11:28:56","modified_gmt":"2020-07-09T11:28:56","slug":"q-2-describe-homeostasis-in-plants-what-different-mechanisms-are-adopted-for-homeostasis-in-plants-or","status":"publish","type":"post","link":"https:\/\/murreeroad.org\/Biology10\/q-2-describe-homeostasis-in-plants-what-different-mechanisms-are-adopted-for-homeostasis-in-plants-or\/","title":{"rendered":"Q.2 Describe homeostasis in plants. What different mechanisms are adopted for homeostasis in plants?"},"content":{"rendered":"

Q.2 Describe <\/b>homeostasis <\/b>in <\/b>plants<\/b>. <\/b>What <\/b>different <\/b>mechanisms <\/b>are <\/b>adopted <\/b>for <\/b>homeostasis <\/b>in <\/b>plants<\/b>? <\/b>OR <\/b>How <\/b>plants <\/b>remove <\/b>metabolic <\/b>wastes<\/b>?<\/b>
\nAnswer:<\/strong>
\nHomeostasis in plants <\/strong>
\nPlants respond to environmental changes and keep their internal conditions constant i.e. homeostasis. They apply different mechanisms for the homeostasis of water and other chemicals (oxygen, carbon dioxide, nitrogenous materials etc).
\nRemoval of extra Carbon dioxide . <\/strong>
\nIn daytime, the carbon dioxide produced during cellular respiration is utilized in photosynthesis and hence it is not a waste product. At night, it is surplus because there is no utilization of carbon dioxide. It is removed from the tissue cells by diffusion. In leaves and young stems, carbon dioxide escapes out through stomata. In young roots, carbon dioxide diffuses through the general root surface, especially through root hairs.
\nRemoval of extra oxygen <\/strong>
\nOxygen is produced in mesophyll cells only during daytime, as a by-product of photosynthesis. After its utilization in cellular respiration the mesophyll cells remove the extra amount of oxygen through stomata.
\nRemoval of extra water <\/strong>
\n1. Transpiration <\/strong>
\n(a) Definition<\/strong>
\nTranspiration is the loss of water from plants surface in the form of vapours e.g; conifers and most of plants.
\n(b) Explanation.<\/strong>
\nPlants obtain water from soil and it is also produced in the body during cellular respiration. Plants store large amount of water in their cells for turgidity. Extra water is removed from plant body by transpiration.
\nAt night, transpiration usually does not occur because most plants have their stomata closed. If there is a high water content in soil, water enters the roots and is accumulated in xylem vessels.<\/p>\n

\"guttation\"
\n2. Guttation <\/strong>
\n(a) Definition<\/strong>
\nThe appearance of drops of water on the tips or edges of leaves is called guttation. Guttation is not to be confused with dew, which condenses from the atmosphere on to the plant surface.
\n(b) Explanation<\/strong>
\nSome plants such as grasses and strawberry force this water through special pores, present at leaf tips or edges, and form drops. Removal of Other Metabolic Wastes Plants deposit many metabolic wastes in their bodies as harmless insoluble materials.
\nExample <\/strong>
\n1. Calcium oxalate crystals<\/strong>
\nCalcium oxalate is deposited in the form of crystals in the leaves and stems of many plants e.g. in tomato.
\n2. Shedding of leaves<\/strong>
\nIn trees, which shed their leaves yearly, the excretory products are removed from body during leaf fall.
\n3. Resins<\/strong>
\n\u00b7 Resins are removed by coniferous trees.
\n4. Gums<\/strong>
\nleaf cell Gums are removed by keekar.
\n5. Latex <\/strong>
\nLatex are removed by rubber plants.
\n6. Mucilage <\/strong>
\nMucilage are removed by carnivorous plants and lady finger.
\n\"waste<\/p>\n","protected":false},"excerpt":{"rendered":"

Q.2 Describe homeostasis in plants. What different mechanisms are adopted for homeostasis in plants? OR How plants remove metabolic wastes? Answer: Homeostasis in plants Plants respond to environmental changes and keep their internal conditions constant i.e. homeostasis. They apply different mechanisms for the homeostasis of water and other chemicals (oxygen, carbon dioxide, nitrogenous materials etc).… Read More »Q.2 Describe homeostasis in plants. What different mechanisms are adopted for homeostasis in plants?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[22],"tags":[],"_links":{"self":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts\/1670"}],"collection":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/comments?post=1670"}],"version-history":[{"count":5,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts\/1670\/revisions"}],"predecessor-version":[{"id":1693,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts\/1670\/revisions\/1693"}],"wp:attachment":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/media?parent=1670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/categories?post=1670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/tags?post=1670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}