Cellular Respiration And Photosynthesis Essay

1872 Words8 Pages
Photosynthesis and Respiration:
Cellular respiration and photosynthesis are the two main processes carry out by most living organisms to attain energy. Whereas photosynthesis is performed by most plants that can make their own food, most animals achieve their energy necessities through cellular respiration.

Photosynthesis:
Light-dependent Reactions and Light-independent Reactions or dark reactions or Calvin Cycle are the stages of chemical reactions during the process of photosynthesis.

Light Reactions:
During the light reaction solar energy is transformed into chemical energy. The second stage is when synthesis (Calvin Cycle) uses the energy from the light reaction and change CO2 taken from the atmosphere into sugar. The Calvin cycle uses ATP and NADPH to transform three molecules of CO2 to one molecule of a 3-carbon sugar.
…show more content…
The beginning of the cycle started with the amalgamation of CO2 into organic molecules. This process; carbon fixation involves the reduction including electrons delivered by NADPH. Since "ATP from the light reactions influences parts of the Calvin cycle, it is the Calvin cycle that creates sugar, with the aid of ATP and NADPH from the light reaction". The raw materials for anabolic pathways and fuel for respiration is provided when Carbohydrates takes form of disaccharide sucrose travel through the veins to non-photosynthetic cells, and formation of the extracellular polysaccharide cellulose. Cellulose is the utmost plentiful organic molecule, as well as the main ingredient of cell walls in plants. The sugar produced in the chloroplasts provides plants with chemical energy and carbon frameworks to make all the major organic molecules of cells. Photosynthesis manufactures over 500 billion metric tons of carbohydrates. It is also responsible for the occurrence of oxygen in our

More about Cellular Respiration And Photosynthesis Essay

Open Document