What is the Difference between Light and Dark Reaction in Photosynthesis
Difference between Light & Dark Reaction
In photosynthesis two types of reaction takes place
- i) Light Reaction
- ii) Dark Reaction
Chlorophyll absorbs sunlight, which break down the water molecule to release hydrogen and oxygen. The break down of water through light is called Photolysis. Energy of absorbed light is converted into two chemical compounds:
- i) NADPH (Nicotinamide Adenine Dinucleotide Phosphate)
- ii) ATP (Adenosine tri-Phosphate)
All these reactions, which take place in the presence light, are called light reactions.
Energy from ATP and NADPH is utilized to prepare glucose. Hence energy is stored in glucose. This phase do not require light, hence this reaction is called dark reaction.
Note: To “diaries” much higher requirements are imposed, concerning the level of knowledge and preparedness of students, as well as compliance with the requirements of internal regulations and discipline. An essential shortcoming of correspondence education is the compressed supply of material. It is believed that outside the classroom, self-study sessions of part-time students can solve this problem. But, as practice shows, most part-time students are simply not for this time. Thus, while the advantages of correspondence education are indisputable, the shortcomings of the correspondence form of education are rather a consequence of existing prejudices in modern society. On the other hand, the main drawback of this form of studying special subjects is that for six years the student has studied for no more than six months, and this indicates that the student is unlikely to get a really deep, high-quality knowledge and skills. Anyone who already has a certain length of service and work experience, having obtained a diploma of higher education, can simply choose a more paid job or earn a promotion in the organization where he has already worked for a certain period and had time to prove himself.