What are the necessary conditions for autotrophic nutrition and what are its by-products

Answer When the living organisms obtain food and utilizes it for the use in various biological activities like growth, maintenance and for the energy need is known as nutrition. Some nutritional elements like amino acids, fatty acids, vitamins and minerals. Autotrophic nutrition:Preparation of organic food from the inorganic material in the organism’s own body is known as autotrophic nutrition also called self nourishing organisms. There are two modes of autotrophic nutrition:- • Photoautotrophic nutrition • Chemoautotrophic nutrition Photoautotrophic nutrition is the preparation of organic food from inorganic material by utilizing sun’s energy (photosynthesis process) and on the other hand, chemoautotrophic nutrition or chemosynthesis is the preparation of organic food with the help of chemical reaction energy. The necessary conditions for autotrophic nutrition are chlorophyll, sunlight, carbon dioxide, water in photoautotrophic nutrition they take carbon dioxide and water from the environment and transform these into the glucose and oxygen by the process of photosynthesis trapped by chlorophyll; and in chemoautotrophic nutrition, some bacteria develops a technique to capture energy released by the oxidation of inorganic chemical substances and make organic food. Eg. Nitrifying bacteria like Nitrosomonas and Nitrobacter . Their by products are glucose and oxygen. And, their by products are represented in the following equation:- Popular Questions of Class 10 Science • Q:-...

• The autotrophic organisms are self-feeders that can synthesize the organic compounds using carbon dioxide as a source of carbon and water as an electron donor. Green plants are photoautotrophs that carry out photosynthesis, a process that requires atmospheric carbon dioxide, water, sunlight, and chlorophyll. • The energy of sunlight is trapped by chlorophyll and is used to fix carbon dioxide into organic compounds (glucose) in the presence of water. These organic compounds are used by plants for their own growth and maintenance and stored in the form of starch that serves as a source of energy when required. Since water molecules serve as an electron donor, oxygen is produced during the process of photosynthesis as a by-product and is released into the air.

“Autotrophic nutrition is a process where an organism prepares its own food from a simple inorganic material like water, mineral salts and carbon dioxide in the presence of sunlight.” The term “autotrophic” is formed by the combination of two terms, “ a uto” meaning self, and  “trophic” meaning  nutrition. The literal meaning of this term is self-nutrition. The autotrophic organisms contain a green coloured pigment called chlorophyll which helps in trapping energy from the sun. All green plants possess an autotrophic mode of nutrition. They prepare their own food by utilizing solar energy, water, and carbon dioxide by the process of photosynthesis. This results in the formation of glucose. Plants like blue-green algae and bacteria such as cyanobacteria are considered to be examples of autotrophs. Also Read: Photosynthesis • Leaves – They are considered as the food factories of the plant. • Stomata– It is present in the lower epidermis of the leaf which uses carbon dioxide from the air. • Roots – They absorb minerals and water from the soil and transport it to different parts of the plant. Leaves of the vascular plants have a special structure known as All the minerals which are dissolved in water are used to convert sugar into proteins, fats, and carbohydrates. These food components act as the source of energy for other heterotrophic animals and plants. Glucose is synthesized by this process and converted into different compounds like cellulose and starch, which ...

Nutrition – Food Supplying System Synopsis: • Procurement of nutrients is known as nutrition. • Nutrition is of two types. a) Autotrophic nutrition and b)Heterotrophic nutrition. • In autotrophic nutrition, organisms make their own food from simple inorganic materials like CO 2 and H 2O using light as source of energy. • Heterotrophic nutrition involves intake of complex materials prepared by other organisms. • Photosynthesis is a process by which green plants containing chlorophyll, produce food substances [glucose & starch] from CO 2 and H 2O using light as source of energy and release O 2 into atmosphere. • C.B.Van Neil, 1931 proposed and formulated an equation for photosynthesis as • The balanced equation to show the process of photosynthesis is as follows: • Photosynthesis is the basic energy source of all living organisms. • To destarch a leaf, potted plant has to be kept in dark room for 24 hours [it removes the starch already present in the leaf] and boil it in methylated spirit over water bath till it becomes pale white due to removal of chlorophyll. • If we add Iodine solution to the dechlorified leaf, it turns to blue – black colour indicating the presence of starch. • There are four essential factors of Photosynthesis viz. carbon dioxide, water, chlorophyll and sunlight. • In 1648, Von Helmont of Belgium found that water was essential for the increase of plant mass. • In 1770, Joseph Priestly revealed the essential role of air in the growth of plants. • Priestl...

Nutrition: • It is the process of consuming food and transforming it into energy and other vital components essential for life. • In living organisms, two types of nutrition are found, that is, autotrophic and heterotrophic modes of nutrition. Autotrophic nutrition: • It is a process in which the organism generates its food with the help of basic inorganic substances like water, mineral salts, and carbohydrates in the presence of sunlight. • All the green plants, bacteria like cyanobacteria, and red and green algae exhibit an autotrophic mode of nutrition. The essential conditions for autotrophic nutrition are: • The presence of sunlight is the main source of energy. • Supply of carbon dioxide and water. • The existence of chlorophyll in the leaves of plants helps to captivate the energy from the sunlight. The by-products of the autotrophic mode of nutrition are oxygen and carbohydrates (glucose).

Solution Autotrophic mode of nutrition involves the making of food by green plants by the process of photosynthesis. The conditions necessary for autotrophic nutrition are the presence of : Carbon dioxide, Water, Chlorophyll and Sunlight. Carbon dioxide combines with water in the presence of sunlight energy (absorbed by chlorophyll) to form food like glucose. This glucose carbohydrate is used for providing energy to the plant. A part of glucose is stored in plants as starch which can be used as a source of energy ehenever the plant need it. The major by-product of autotrophic nutrition (or photosynthesis) is oxygen gas which gose into the air.