{"id":7121,"date":"2022-04-01T10:17:12","date_gmt":"2022-04-01T04:47:12","guid":{"rendered":"https:\/\/conceptsdk.com\/?page_id=7121"},"modified":"2022-04-01T10:43:14","modified_gmt":"2022-04-01T05:13:14","slug":"chapter-1-nutrition-in-plants","status":"publish","type":"page","link":"https:\/\/conceptsdk.com\/?page_id=7121","title":{"rendered":"Chapter 1: Nutrition in Plants"},"content":{"rendered":"\n

REVISION CONCEPTS<\/strong><\/p>\n\n\n\n

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Nutrition<\/strong>: It is the mode of taking food by an organism and its utilization by the body.<\/p>\n\n\n\n

\u2022 Nutrients<\/strong>: The components of food that provide nourishment to the body.<\/p>\n\n\n\n

\u2022 All organisms take food and utilise it to get energy for the growth and maintenance of their bodies.<\/p>\n\n\n\n

\u2022 Green plants synthesise their food themselves by the process of photosynthesis. They are autotrophs.<\/p>\n\n\n\n

\u2022 Photosynthesis: Green plants prepare their own food with the help of carbon dioxide and water tekn from the environment in presence of sunlight called chlorophyll (found in green plants) for the manufacture of food. This process is known as photosynthesis.<\/p>\n\n\n\n

\u2022 Plants use simple chemical substances like carbon dioxide, water and minerals for the synthesis of food.<\/p>\n\n\n\n

\u2022 Chlorophyll and sunlight are the essential requirements for photosynthesis.<\/p>\n\n\n\n

\u2022 Complex chemical substances such as carbohydrates are the products of photosynthesis.<\/p>\n\n\n\n

\u2022 Solar energy is stored in the form of food in the leaves with the help of chlorophyll.<\/p>\n\n\n\n

\u2022 Oxygen is produced during photosynthesis.<\/p>\n\n\n\n

\u2022 Oxygen released in photosynthesis is utilised by living organisms for their survival.<\/p>\n\n\n\n

\u2022 Fungi derive nutrition from dead, decaying matter. They are saprotrophs. Plants like Cuscuta<\/p>\n\n\n\n

are parasites. They take food from the host plant.<\/p>\n\n\n\n

\u2022 A few plants and all animals are dependent on others for their nutrition and are called heterotrophs.<\/p>\n\n\n\n

\u2022 Parasitic: Organisms that live on the body of other organisms.<\/p>\n\n\n\n

\u2022 All parasitic plants feed on other plants as either:<\/p>\n\n\n\n

(i) Partial Parasites: Obtain some of their nutrition from the host, e.g. painted cup.<\/p>\n\n\n\n

(ii) Total Parasites: dependent completely on the host for nutrition, e.g. mistletoe.<\/p>\n\n\n\n

\u2022 Saprophytic: Organisms that obtain nutrition from dead and decaying plant and animal matter.<\/p>\n\n\n\n

\u2022 Mushrooms, moulds and certain types of fungi and bacteria.<\/p>\n\n\n\n

Insectivorous Plants: Green plants which obtain their nourishment partly from soil and atmosphere and partly from small insects. Example: pitcher plant, bladderwort, and venus fly trap.<\/p>\n\n\n\n

\u2022 Symbiosis: Mode of nutrition in which two different individuals associate with each other to fulfil their requirement of food.<\/p>\n\n\n\n

\u2022 Lichens found on tree trunks is the association between alga and fugus. Alga obtains water from fungus and it in turn obtains food from alga.<\/p>\n\n\n\n

NCERT SOLUTIONS<\/strong><\/p>\n\n\n\n

Q1 : Why do organisms need to take food?<\/strong><\/p>\n\n\n\n

Answer : All living organisms require food to survive. It gives them energy to perform various activities. All activities such as playing, running, walking, studying, etc. require energy. The various components present in our food such as carbohydrates, proteins, fats, vitamins, and minerals provide energy to our body. These are also important for growth and development of the body.<\/p>\n\n\n\n

Q2 : Distinguish between a parasite and a saprotrophytic.<\/strong><\/p>\n\n\n\n

Answer :<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

REVISION CONCEPTS Nutrition: It is the mode of taking food by an organism and its utilization by the body. \u2022 Nutrients: The components of food that provide nourishment to the body. \u2022 All organisms take food and utilise it to get energy for the growth and maintenance of their bodies. \u2022 Green plants synthesise their […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"class_list":["post-7121","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/conceptsdk.com\/index.php?rest_route=\/wp\/v2\/pages\/7121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/conceptsdk.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/conceptsdk.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/conceptsdk.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/conceptsdk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7121"}],"version-history":[{"count":5,"href":"https:\/\/conceptsdk.com\/index.php?rest_route=\/wp\/v2\/pages\/7121\/revisions"}],"predecessor-version":[{"id":7132,"href":"https:\/\/conceptsdk.com\/index.php?rest_route=\/wp\/v2\/pages\/7121\/revisions\/7132"}],"wp:attachment":[{"href":"https:\/\/conceptsdk.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}