Photophosphorylation is the process of creating ATP using a Proton gradient created by the Energy gathered from sunlight. The process of creating the Proton gradient resembles that of the electron transport chain of Respiration. But since formation of this proton gradient is light-dependent, the process is called Photophosphorylation.
Chemiosmosis - Chemiosmosis is the process of using Proton movement to join ADP and Pi. This is accomplished by enzymes called ATP synthases or ATPases. The CF1-ATPase of the Thylakoid membrane is shown on the left (DIAGRAM IN LINK). As protons pass through this enzyme ADP and Pi are joined to make ATP. The movement of the Protons through this enzyme provides the Energy needed to make ATP
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In photosynthesis, light energy is captured by pigments like chlorophyll in the chloroplasts of plants. This light energy is used to split water molecules into oxygen and hydrogen ions. The hydrogen ions are then used to generate ATP and NADPH, which are energy carriers that drive the conversion of carbon dioxide into glucose. This process of converting light energy into chemical energy is carried out in the thylakoid membranes of the chloroplasts.
Light is captured by the chlorophyll in the chloroplasts of plant cells. More specifically:
Each thylakoid membrane is made of photosystem I and II. Light hits photosystem II first, and the plant uses a water molecule and breaks it up. The released e- is used to boost it up to the ETC (electron transport chain) where ATP is produced. The energy is moved to photosystem I, which absorbs a different wavelength of light. It falls down the ETC to form NADP+ reluctase and ATP, which is then used by the Calvin's Cycle. The Calvin cycle uses CO2 from the envioroment and uses the NADP+ and ATP created by the light reaction to form NADPH and sugar through carbon fixation and reduction.
Thus, light energy is converted into chemical energy (glucose).
Photophosphorylation is the process of creating ATP using a Proton gradient created by the Energy gathered from sunlight. The process of creating the Proton gradient resembles that of the electron transport chain of Respiration. But since formation of this proton gradient is light-dependent, the process is called Photophosphorylation.
Chemiosmosis - Chemiosmosis is the process of using Proton movement to join ADP and Pi. This is accomplished by enzymes called ATP synthases or ATPases. The CF1-ATPase of the Thylakoid membrane is shown on the left (DIAGRAM IN LINK). As protons pass through this enzyme ADP and Pi are joined to make ATP. The movement of the Protons through this enzyme provides the Energy needed to make ATP
In most living things, energy is created in the form of ATP. In plants, this energy is taken from the light, and ATP is made alongside NADPH2.
Light energy is used in photosynthesis. It is transformed into chemical energy.
During photosynthesis the energy of light is transformed in chemical energy.
Photosynthesis is the process in which light energy absorbed by chlorophyll is transformed into chemical energy. The chemical energy is used to synthesise carbohydrates from water and carbon dioxide. Water and carbon dioxide are the raw materials for photosynthesis. oxygen is released during the process
In the chloroplast, light energy is transformed into chemical energy during the process of photosynthesis. This chemical energy is stored in the form of glucose, which can be later used by the plant for cellular respiration to produce ATP for energy.
provides the main input of free energy into the biosphere