NEET BIOLOGY

Detailed explanation-1: -This is due to no oxygen there; they cannot get energy from the food which they consume. Aerobic respiration takes more energy because a complete breaking of glucose takes place during respiration with the use of oxygen. The respiration that occurs in the absence of oxygen is known as anaerobic respiration.

Detailed explanation-2: -Plants do require oxygen to respire, the process in return gives out carbon dioxide. Unlike humans and animals, plants do not possess any specialized structures for exchange of gases, however, they do possess stomata (found in leaves) and lenticels (found in stems) actively involved in the gaseous exchange.

Detailed explanation-3: -Plants do not need oxygen for photosynthesis. Instead, oxygen is produced during photosynthesis.

Detailed explanation-4: -Hence, the correct answer is ‘Oxygen and concentration of carbon dioxide’

Detailed explanation-5: -Figure 4. Simple equation describing the molecules required for respiration and its products. Respiration occurs in all living cells, including leaves and roots. Since respiration does not require light energy, it can be conducted at night or during the day.