Question

Do plants need oxygen? Why or why not?

Answer 1

Hint: Respiration is a series of chemical reactions that allow all living things to produce the energy they need to survive. It is a biochemical process in which air is exchanged between the external environment and the species' tissues and cells. Inhalation of oxygen and exhalation of carbon dioxide gas occurs during respiration. A metabolic process is defined as an entity that obtains energy by oxidizing nutrients and thus liberating wastes.

Complete answer:
Plant cells require oxygen to survive because they cannot perform aerobic respiration without it (respiration is the process of breaking down food to get energy). Of course, you're probably aware that photosynthesis involves plants combining water, carbon dioxide, and solar energy to produce sugar and oxygen.
As a result, the cells in the plant's green parts, where photosynthesis occurs, get all of the oxygen they require from the oxygen produced by photosynthesis. As a result, the cells in the leaves and stems are fine. The cells in the roots, where there is no photosynthesis, are the key.
Significantly less gas exchange occurs in different plant parts during respiration. As a result, each component nourishes and meets its energy requirements. As a result, plants' leaves, stems, and roots all exchange gases separately. For gaseous exchange, leaves have stomata – tiny pores. The oxygen taken in through the stomata is used by cells in the leaves to break down glucose into water and carbon dioxide.
So, Respiration is an essential aspect of life. Plants, like other organisms, require oxygen for cellular respiration and energy release in the mitochondria. Plants, on the other hand, can release oxygen through the photolysis of water in the process of photosynthesis.

Thus, yes. plants required oxygen for the oxidation of glucose.

Note:
Some wetlands plants have evolved to tolerate low oxygen levels, and many of them have extremely shallow root systems to keep them as close to the air as possible. Mangroves are saltwater lagoon trees with special roots called pneumatophores (Greek for 'air carrier') that act as root snorkels. Most plants, on the other hand, lack these adaptations and tolerances, which is why overwatering your houseplants can cause them to 'drown'.