How is life dependent on photosynthesis?

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rrteacher eNotes educator| Certified Educator

Photosynthesis is essential to life on Earth for three primary reasons. First, the process of photosynthesis utilizes carbon dioxide and water in a process that releases oxygen, which is obviously crucial to life. (Photosynthesis also helps to maintain normal levels of carbon dioxide in the atmosphere through the same process.) 

The second reason that photosynthesis is crucial to life is that it provides the energy that sustains almost every life form on the planet. Whether this energy is consumed directly, by the plants themselves, or indirectly down the food chain, the ultimate source of the calories all living things consume is photosynthesis.

Finally, photosynthesis is the ultimate source of all the carbon that is stored in the organic compunds in all living matter. All of these ingredients, oxygen, caloric energy, and carbon for organic chemicals, are ultimately tied to the photosynthetic process.

jerichorayel eNotes educator| Certified Educator

Photosynthesis is the process by which an organism is able to utilize the energy coming from light to form sustainable energy. We can conclude that life is dependent in photosynthesis because of many reasons: 1.the  product of its mechanisms are essential to the living entities. 2. photsynthesis regulate the production of CO2 and O2 in the surroundings. 3. it equilibriates the pollution effects. 4. it provides food for the living organism (carbohydrates) alleviates global warming. 6. contributes to water cycle 6. most important factor in the food chain/food web.

In totality, photosynthesis is an essential factor for one's survival. if in the case photosynthetic organisims hadnt evolved, the earth primarily be lifeless. 

sanjeetmanna eNotes educator| Certified Educator

Photosynthesis is the process by which plant utilises the sunlight and oxygen to produce carbohydrates nothing but the food for us.

The food produced by the plant some of it is utilised by plants and most of it is utilised by other living organisms.

Primary consumers depends on producers(plants), and secondry consumers depend upon primary consumers and like this the food chain continues. If there are no producers then then is imbalance in the food chain and which may finally lead to death or collapse of whole food chain... or in other words we can say no photosynthesis no life.

nirmita | Student

Photosynthesis is the process by which plants prepare their food(e.i., glucose) and we know that plants are the only autotrophes which are capable of praparing their own food rest all, directly or indirectly are dependent on these plants for their food.

As herbivores feed on the plants and derive their nourhisment and carnivores feed on the flesh of the herbivores and derive their nourhisment from them. Decomposers feed on the dead decaying matter and derive their nourhisment.

Ultimately, every creature is dependent on the plants for their survival and plants are dependent on photosynthesis for the production of glucose. Hence, we can say that we are dependented on the process of photosynthesis.  

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