10 framing questions in the topic on nutrition in human beings
Answers
1) What are nutrients?
Answer Nutrients are various organic and inorganic substances required by the organism to carry out their functions.
2 What is heterotrophic nutrition?
Answer The process of nutrition where the organisms obtain their food from other organisms. For example, most of the bacteria, fungi and all animals. They are all dependent on autotrophs directly or indirectly.
3) Why are green plants called producers?
Answer The green plants trap the sun’s energy and the raw materials in food molecules. They form the basis of sustenance for all the organisms directly or indirectly. They are also called the producers as they produce food for all other organisms.
4)What is photosynthesis?
Answer Photosynthesis is a process which utilizes carbon dioxide and water in the presence of sunlight and chlorophyll to synthesize carbohydrates like glucose.
Question 5)
What are the raw materials required for photosynthesis?
Answer Photosynthesis requires the radiant energy of the sun, chlorophyll, carbon dioxide, water and minerals.
Question 7
From where do the green plants get carbon dioxide?
Many processes like respiration, combustion, volcanic activity, etc. release carbon dioxide into the atmosphere. This carbon dioxide of the atmosphere is used by the terrestrial plants and the hydrophytes use the carbon dioxide dissolved in the water.
Question 8
How do green plants get water?
Answer Water is absorbed by the roots of the green plants from the surrounding soil.
Question 9
Why are minerals essential in photosynthesis?
Answer Minerals like magnesium form essential compounds such as chlorophyll. Hence, they are important for photosynthesis.
Question 10
How do plants obtain minerals?
Answer Plants obtain the minerals from the soil by their dissolution in water.
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