Question

Light energy is changed into chemical energy during the process of
A. respiration
B. transpiration
C. photosynthesis
D. digestion

Answer 1

Hint: Cells use carbon dioxide and Sun power to generate sugar molecules and oxygen during this procedure. All green plants can do this process.

Complete answer:
Energy is the quantitative property to be converted into an object for work on or heating of the object. The energy conservation law notes that energy can be transformed into form but not generated or lost.
The method of plant respiration includes the use of the sugars produced in photosynthesis plus oxygen for plant growth energy. Respiration is the reverse of photosynthesis in several respects. Plants grow their own food for life in the natural world. They use the carbon dioxide from the atmosphere as a source of energy for sugar and oxygen.
Transpiration is an evaporation process of water from air sections such as branches, leaves and flowers, by the plant. Water is needed for plants, but for growth and digestion only a limited amount of water is used by the roots.
The photosynthesis mechanism converts light energy into chemical energy by green plants, as well as many other organisms. Light energy is absorbed and used to turn carbon dioxide, water, and minerals into energy-rich organic compounds and oxygen during photosynthesis in green plants. Cells use carbon dioxide and Sun power to generate sugar molecules and oxygen during the photosynthesis procedure. These sugar molecules are the base for more complex photosynthetic cell molecules such as glucose. Then, cells use glucose and oxygen by respiration processes to synthesise energy rich carriers, like ATP, and as a waste product carbon dioxide is generated.
Digestion is the transformation of large insoluble molecules of the food into tiny aquatic-soluble food molecules to incorporate them into the watery blood plasma.

Hence, the correct answer is option (C)

Note: During photosynthesis the light energy is absorbed and used to turn carbon dioxide, water, and minerals into energy-rich organic compounds and oxygen during photosynthesis in green plants.