NEET BIOLOGY

Detailed explanation-1: -All organisms use a source of energy for their metabolic activities. Some organisms capture energy from the sun and convert it into chemical energy in food (photosynthesis); others use chemical energy in molecules they take in as food (cellular respiration).

Detailed explanation-2: -Living things take in oxygen and oxidise the food with the release of energy by the process of cellular respiration. The energy released by the respiration is used for the growth and development of the body. It helps to perform several functions like digestion, respiration etc.

Detailed explanation-3: -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 byproduct. In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process.

Detailed explanation-4: -Expert-Verified Answer. Using Energy(option A) is a characteristic of life that best describes the process of photosynthesis because: Photosynthesis is a process that transforms light energy into chemical energy with the help of water and carbon dioxide producing oxygen and organic compounds.

Detailed explanation-5: -Photosynthesis is the ultimate source of nearly all energy used in all living organisms. This process is carried out by plants, algae, and bacteria to transform the energy of sunlight into chemical energy that can be stored and used by them and other organisms.