Cellular respiration and photosynthesis - Assignment Example

Arbitrary relocation of molecules from the region of higher denseness to lower is known as diffusion. Osmosis is the phenomenon in which the water molecules' moves as per potential gradient across a semi permeable membrane (membrane which allows only particular molecules to go through it). Nutritions are transformed into operational energy by a biochemical process cellular respiration and electron transport. Electron transport is the procedure which pairs transfer in a midst NADH and O2 with the transfer of protons across a membrane.

Due to electron transport phenomena, potential gradient is substantiated, which is used to derived adenosine triphosphate (ATP). Traversing of protons across the membrane of cell, and cellular compartment/parts is done by a biochemical pump called proton pump. ATP is the chief origin of cellular energy, which is obtained from adenosine diphosphate through cellular respiration & photosynthesis. The hydrolysis of ATP is quickened by a class of enzyme called ATPase. Formation of ATP from ADP and a phosphate molecule is a biochemical process that captivates energy, i.e. endergonic reaction.

Due to the traversing of proton across membrane, and catalytic effect of ATPase; subsequent amount of energy is released. The released energy is used for the conversion of ADP to ATP. Biochemical energy is mandatory to execute any activity ranging from cellular to macro level. Cellular energy is derived by two processes cellular respiration and photosynthesis. Cellular respiration is the one, in which energy sources like glucose are infringed down to derive productive energy in the form of ATP.

It is the process in which CO2 is produced and O2 is absorbed.  The process in which, glucose is produced in plants under the effect of sunlight by combining CO2 and H2O is known as photosynthesis. ADP is hydrolyzed to form ATP usually in mitochondria; aided by the transportation of protons (proton pump) to generate a potential gradient that results in the release of succeeding energy; which is utilized to form ATP under the catalytic effect of ATPase ("BioWeb"). "Cellular Respiration." BioWeb. N.p.

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