I'm not sure what you mean by 'leftover' as oxygen is one of the products of photosynthesis. If photosynthesis is happening slowly, the plant cell may use all the oxygen for respiration, but in bright light when photosynthesis is rapid, the excess oxygen diffuses out into the air.
Air
The oxygen that is produced in photosynthesis goes into the air.
When plants go through photosynthesis, they release oxygen into the air. Any plant, including greens, that go through photosynthesis produce oxygen. The oxygen that is produced, we use it.
Photosynthesis takes in carbon dioxide and releases oxygen. Resperation takes in oxygen and releases carbon dioxide.
It is released into the air for us to breathe
Oxygen is produced as a by-product of photosynthesis.
The oxygen that is produced in photosynthesis goes into the air.
Any extra energy (food) which is left over is stored as starch
When plants go through photosynthesis, they release oxygen into the air. Any plant, including greens, that go through photosynthesis produce oxygen. The oxygen that is produced, we use it.
Oxygen is the by-product of photosynthesis. Glucose and oxygen are the final products of the photosynthesis process.
Photosynthesis takes in carbon dioxide and releases oxygen. Resperation takes in oxygen and releases carbon dioxide.
oxygen is a byproduct of photosynthesis in plants
No, but they do make oxygen as a product of photosynthesis. Venus Flytraps work like any plant, except that they can acquire extra nutrients from bugs.
In photosynthesis, carbon dioxide and water combine to form glucose and oxygen. Oxygen is the gaseous product in photosynthesis.
It is released into the air for us to breathe
Oxygen and chlorophyll
Carbon dioxide and water
Oxygen is produced as a by-product of photosynthesis.