Final answer:
Photosynthesis is true; it is the conversion of light energy into glucose, a usable form of energy for all living beings, and it also releases oxygen, which is essential for life.
Step-by-step explanation:
Photosynthesis is the process by which plants, algae, and some bacteria capture light energy and convert it into chemical energy in the form of glucose, which is a form of energy that all living things can utilize. Thus, the statement that photosynthesis is the process by which plants capture light energy and convert it into food for the plant, as well as a form of energy that all living things can use (glucose), is true.
The equation that summarizes photosynthesis is: 6CO2 + 6H2O + Light Energy → C6H12O6 + 6O2. This shows that carbon dioxide (CO2) and water (H2O) combine, using the energy from sunlight, to produce glucose (C6H12O6) and oxygen (O2). Not only is glucose used by the plants themselves, but it is also a fundamental energy source for all organisms, while oxygen released during the process is crucial for the survival of aerobic life forms.
Without photosynthesis, life as we know it would not exist, as it forms the base of the food chain and is the primary source of oxygen in the Earth's atmosphere. The energy stored in glucose during photosynthesis powers various metabolic processes in plants and, when consumed, in animals as well, serving as the cornerstone of the planet's energy cycle.