Question

Which of the following is the net equation for photosynthesis?
(A) ${\mathbf{6C}}{{\mathbf{O}}_{\mathbf{2}}}\; + \;{\mathbf{6}}{{\mathbf{H}}_{\mathbf{2}}}{\mathbf{O}}\; \to \;{{\mathbf{C}}_{\mathbf{6}}}{{\mathbf{H}}_{{\mathbf{12}}}}{{\mathbf{O}}_{\mathbf{6}}}\; + \;{\mathbf{6}}{{\mathbf{O}}_{\mathbf{2}}}\;$
(B) ${{\mathbf{C}}_{\mathbf{6}}}{{\mathbf{H}}_{{\mathbf{12}}}}{{\mathbf{O}}_{\mathbf{6}}}\; + \;{\mathbf{6}}{{\mathbf{O}}_{\mathbf{2}}}\; \to {\mathbf{6C}}{{\mathbf{O}}_{\mathbf{2}}}\; + \;{\mathbf{6}}{{\mathbf{H}}_{\mathbf{2}}}{\mathbf{O}}\;$
(C) ${{\mathbf{C}}_{\mathbf{6}}}{{\mathbf{H}}_{{\mathbf{12}}}}{{\mathbf{O}}_{\mathbf{6}}}\; + \;{\mathbf{6}}{{\mathbf{H}}_{\mathbf{2}}}{\mathbf{O}}\;\; \to {\mathbf{6C}}{{\mathbf{O}}_{\mathbf{2}}}\; + \;{\mathbf{6}}{{\mathbf{O}}_{\mathbf{2}}}$
(D) $\;{\mathbf{6C}}{{\mathbf{O}}_{\mathbf{2}}}\; + \;{\mathbf{6}}{{\mathbf{O}}_{\mathbf{2}}} \to {{\mathbf{C}}_{\mathbf{6}}}{{\mathbf{H}}_{{\mathbf{12}}}}{{\mathbf{O}}_{\mathbf{6}}}\; + \;{\mathbf{6}}{{\mathbf{H}}_{\mathbf{2}}}{\mathbf{O}}\;$
(E) $\;{\mathbf{6C}}{{\mathbf{O}}_{\mathbf{2}}} + \;{{\mathbf{C}}_{\mathbf{6}}}{{\mathbf{H}}_{{\mathbf{12}}}}{{\mathbf{O}}_{\mathbf{6}}}\; \to {\mathbf{6}}{{\mathbf{O}}_{\mathbf{2}}} + \;{\mathbf{6}}{{\mathbf{H}}_{\mathbf{2}}}{\mathbf{O}}\;$

Answer 1

Hint : Carbohydrates are formed by the carbon assimilation process, which involves the use of a mixture of water, carbon dioxide, external resources, light, and chlorophyll, as well as the presence of oxygen. Photosynthesis is the name given to the whole chemical reaction.

Complete Step By Step Answer:
Photosynthesis is a mechanism by which plants and other species transform light energy into chemical energy, which is then emitted to sustain the organism's metabolic activities by cellular respiration. Carbohydrate compounds, such as carbohydrates, which are made from carbon dioxide and water, store this chemical energy. Much of the time, oxygen is released as a waste product. Photoautotrophs are species that perform photosynthesis, such as plants, algae, and cyanobacteria. Photosynthesis produces and maintains the oxygen content of the Earth's atmosphere, as well as providing the majority of the energy required for life on the planet.
Chloroplasts are the organelles that perform photosynthesis. There are 10 to 100 chloroplasts in each plant cell. A membrane surrounds the chloroplast. A phospholipid inner membrane, a phospholipid outer membrane, and an intermembrane space make up this membrane. The stroma is an aqueous substance that is enclosed by the membrane. Stacks of thylakoids, the photosynthesis site, are embedded within the stroma. Thylakoids look like flattened discs. The thylakoid membrane encloses the thylakoid, and a lumen of thylakoid space exists within the enclosed volume. The photosystem's integral and peripheral membrane protein complexes are embedded in the thylakoid membrane.
The pigment chlorophyll is used by plants to absorb light. The green portion of the light spectrum is mirrored rather than absorbed, which is why most plants have a green hue. Plants use pigments including carotenes and xanthophylls in addition to chlorophyll.
${\mathbf{6C}}{{\mathbf{O}}_{\mathbf{2}}}\; + \;{\mathbf{6}}{{\mathbf{H}}_{\mathbf{2}}}{\mathbf{O}}\;\xrightarrow[{Chlorophyll}]{{hv}}\;{{\mathbf{C}}_{\mathbf{6}}}{{\mathbf{H}}_{{\mathbf{12}}}}{{\mathbf{O}}_{\mathbf{6}}}\; + \;{\mathbf{6}}{{\mathbf{O}}_{\mathbf{2}}}\;$
Hence Option A is the correct answer.

Note :
The method of converting light energy (E = hv) into chemical energy and storing it in the chemical bonds of sugar-like molecules is known as photosynthesis. Plants and algae both go through this phase (Kingdom Protista). To make sugar, plants only need sun, CO₂, and H₂O.