Why do plants release oxygen during photosynthesis reactions instead of utilizing it for cellular respiration?

Question

Instead of using it for cellular respiration intheir mitochondria?

Answer 1

The reason why plants release oxygen during photosynthesis is because this is the byproduct that they produce. In other words, plants need carbon dioxide to survive, and in the process of making carbon dioxide, they also make oxygen but since they do not need the oxygen, they simply release it. On the other hand, we need oxygen to survive, and when we inhale, we inhale the oxygen, make carbon dioxide and exhale carbon dioxide.

Plants release oxygen as a byproduct (waste material) just the same way that we release carbon dioxide as a waste product.

They need ATP, not oxygen.

Answer 2

Actually plants do use some of the oxygen for cellular respiration. Although Oxygen and glucose are by products of phosynthesis, the plant still uses the sugar molecules for energy by burning or oxidizing them for energy for cellular respiration.

Answer 3

Cellular respiration in required to obtain energy from glucose. A plant cannot use energy directly from the sun (at least not enough). ATP (adenosine tri-phosphate) is a universal energy carrier. It is used by almost all organisms in existence to carry energy. When it is broken down it releases useable energy. Cellular respiration is required to make ATP. So plants create glucose from the energy from the sun, then break it down again to make ATP. You can imagine ATP as a battery for the cell, it stores the energy for later use. You cannot do this with sunlight! Plants require ATP so that they can grow, repair damage, fight infection, etc.

Answer 4

Plants use cellular respiration all the time but in daylight they photosynthesise too, making glucose faster than they use it in respiration. They can then modify the glucose to cellulose for structural support or to starch for longer term storage (for times when more energy is needed (seasonal changes and germination for example)

Answer 5

Plants do use some of the oxygen for respiration, but plants make far more oxygen than they need. The excess goes out of the plant.

Answer 6

Plants need CO2 to photosynthesise. It is this that creates their energy;
6CO2 + 6H20 --> C6H12O6 + 6O2.
This energy is transported around the plant via the phloem and therefore the plant doens't use O2 like humans do.

Answer 7

why do animals fart ? propbably the same reason so now we are halfway to fig - er - ing it out .

Answer 8

It wasn't meant to be.