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The process by which green plants synthesize their own food in the presence of sunlight is known as:
Respiration
Photosynthesis
Transpiration
Fermentation
Photosynthesis
Photosynthesis is the biochemical process by which green plants, algae, and certain bacteria convert light energy into chemical energy. Using sunlight, carbon dioxide, and water, these organisms synthesize glucose and release oxygen as a byproduct.
Photosynthesis is the biochemical process by which green plants, algae, and certain bacteria convert light energy into chemical energy. Using sunlight, carbon dioxide, and water, these organisms synthesize glucose and release oxygen as a byproduct.
Think of a plant leaf as a microscopic solar-powered kitchen that takes in raw ingredients (water and carbon dioxide) and uses sunlight as electricity to bake sweet food (glucose) while venting fresh oxygen.
COW-SGS: Carbon dioxide, Oxygen, Water - Sunlight, Glucose, Starch
6CO2тАЛ+6H2тАЛOSunlightтАЛC6тАЛH12тАЛO6тАЛ+6O2тАЛ тАФ Overall balanced chemical equation for photosynthesis
Light energy is absorbed by chlorophyll pigments located in the chloroplasts of plant cells. This light energy drives the photolysis of water molecules, generating ATP and NADPH during the light-dependent reactions, which are subsequently used in the Calvin cycle to fix carbon dioxide into glucose.
Photosynthesis primarily takes place in the chloroplasts of plant cells.
Chlorophyll is the primary green pigment responsible for absorbing light energy.
Oxygen is released into the atmosphere as a byproduct during the light reaction.
Produces organic food which forms the base of almost all terrestrial and aquatic food chains.
Releases oxygen into the atmosphere, sustaining aerobic life on Earth.
Process efficiency is limited by environmental factors like light intensity, temperature, and carbon dioxide concentration.
Primary production in global ecosystems
Biofuel production and agricultural crop yield optimization
Option A (Respiration) is the process of breaking down glucose to release energy.
Option C (Transpiration) is the loss of water vapor from plant aerial parts.
Option D (Fermentation) is an anaerobic metabolic process converting sugars to acids or alcohol.
B is correct тАФ Photosynthesis is the fundamental biological process through which green plants utilize solar energy to synthesize food from carbon dioxide and water.
For RRB and competitive exams, always remember that oxygen released during photosynthesis comes specifically from the photolysis of water, not from carbon dioxide.
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