Chapter 1: Life Processes

Q&A -Ask Doubts and Get Answers

Life Processes


The autotrophic mode of nutrition requires

(a) carbon dioxide and water.

(b) chlorophyll.

(c) sunlight.

(d) all of the above.


Autotrophic Nutrition

The mode of nutrition in which organisms make their food themselves is called autotrophic nutrition. Ex: Green plants and blue-green algae. The organisms which can make their food themselves are called autotrophs. These organisms synthesize their food by taking simple substances (inorganic matter) like CO2 and H2O from the environment and convert them into a complex organic energy-giving substance called carbohydrates in the presence of sunlight and chlorophyll. This process is called photosynthesis.

Therefore, the correct answer is (d) all of the above.

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