Choose the correct option from the following: Plants take carbon dioxide from the atmosphere mainly through their: (i) roots (ii) stem (iii) flowers (iv) leaves

(i) Carbon dioxide is released during photosynthesis. (False)

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen.

(ii) Plants which synthesise their food themselves are called saprotrophs. (False)

Saprotrophs take their food in solution form, from dead and decaying matter. Bacteria, fungi, and fungus-like organisms are examples of saprotrophs. Saprotrophic microbes fungi are also known as saprobes and saprotrophic plants are called saprophytes.

(iii) The product of photosynthesis is not a protein. (True)

Plants use the process called photosynthesis, which converts light energy into chemical energy. There are three components which required for the photosynthesis to takes place, they are sunlight, water and carbon dioxide which in turn produces glucose and oxygen. Thus, the end product of photosynthesis is glucose and oxygen, hence not a protein.

(iv) Solar energy is converted into chemical energy during photosynthesis. (True)

In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a by product.

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