Biology, asked by Santosh212, 1 year ago

write differences between light reaction and dark reaction.

Answers

Answered by Washingtonprem
4
Light Reaction:
Light reaction is a light dependent process which includes a series of events such as light absorption, hydrolysis, the release of oxygen, formation of ATP(Adinosine Tri Phosphate) and NADPH. The light reaction of photosynthesis initiates only when it is supplied with light energy.Light reaction occurs in the thylakoids of the chloroplast. When the light hits, chlorophyll a get excited to higher energy state followed by a series of reactions, this energy is converted into energy molecules ATP and NADPH. Also, hydrolysis occurs and releases oxygen.
Dark Reaction:
Dark reaction is also called carbon-fixing reaction. It is a light-independent process in which sugar molecules are formed from the carbon dioxide and water molecules. This reaction occurs in the stroma of the chloroplast where they utilize the products of the light reaction. Plants capture the carbon dioxide from the atmosphere through stomata and proceed to Calvin cycle. In Calvin cycle, the ATP and NADPH formed during light reaction drives the reaction and convert 6 molecules of carbon dioxide into one sugar molecule i.e. glucose......
Hope this helpful
mark as brilliant..
Similar questions