↪what is photosynthesis _?
Answers
Answer:
PHOTOSYNTHESIS IS THE PROCESS PEREPRAING FOOD FOR PLANTS AND TREES
Answer:
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
Photosynthesis definition states that the process exclusively takes place in the chloroplasts through photosynthetic pigments such as chlorophyll a, chlorophyll b, carotene and xanthophyll. All green plants and a few other autotrophic organisms utilize photosynthesis to synthesize nutrients by using carbon dioxide, water and sunlight. The by-product of the photosynthesis process is oxygen.
Explanation:
Photosynthesis process can be divided into two stages:
Light Reaction
This reaction is a light- dependent reaction and it is needed to produce energy molecules like ATP and NADPH. This reaction occurs in the thylakoid membrane of the chloroplast where the sunlight triggers of the reaction of chlorophyll pigment.
The excited chlorophyll releases an electron which is accepted by the H2 of water after its splitting. The reactions that happen are redox reactions and ultimately lead to the production of energy molecules- ATP and NADPH which are then needed for the subsequent synthesizing reactions that occur in the dark reaction.
Dark Reaction
This reaction does not literally occur in the dark but is named so because it is independent of light. This reaction can occur both in the presence and absence of light. Due to the scientists who worked to discover this cycle, this reaction is also called as the Calvin- Benson-Bassham cycle.
This reaction occurs in the stroma of the chloroplast. This reaction uses the energy molecules generated in the light phase of photosynthesis and converts CO2 into glucose. The photosynthesis process can be summarised by the following equation:
6CO2+ 6H2O→C6H12O6+ 6O2 (in the presence of sunlight)