define nutrition. what are the differences between autotrophic in heterotrophic nutrition?
Answers
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Nutrition is the science that interprets the nutrients and other substances in food in relation to maintenance, growth, reproduction, health and disease of an organism. It includes ingestion, absorption, assimilation, biosynthesis, catabolism and excretion.
Autotrophs are organisms that prepare their own food through the process of photosynthesis, whereas heterotrophs are organisms that cannot prepare their own food and depend upon autotrophs for nutrition.”
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Answer:
the process of providing or obtaining the food necessary for health and growth is called nutrition.
AutotrophsHeterotrophsType of OrganismsUsually members of the plant kingdom and certain unicellular organisms like cyanobacteriaAll members of the animal kingdomMode of NutritionAutotrophs are producers which prepare their own food.Heterotrophs are the consumers who depend on other sources for their food.Classified intoThese can be classified as photoautotrophs and chemoautotrophs.These can be classified as photoheterotrophs and chemoheterotrophs.Presence of chloroplastsThe chloroplast helps in preparing food.They do not contain chloroplast, so cannot prepare food.Energy is obtained fromThey obtain energy from inorganic sources by converting light energy into chemical energy.They obtain energy directly or indirectly from other organisms.Energy StorageAutotrophs can store light energy and chemical energy.Heterotrophs cannot store energy.In Food ChainThey are placed at the primary level in the food chain.These are placed in the secondary or tertiary level in the food chain.
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