SSC CGL Exam > SSC CGL Videos > General Awareness for SSC CGL > Photosynthesis: Brief Overview
Photosynthesis: Brief Overview Video Lecture | General Awareness for SSC CGL
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FAQs on Photosynthesis: Brief Overview Video Lecture - General Awareness for SSC CGL
| 1. How does photosynthesis work? |  |
Ans. Photosynthesis is a process in which plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy stored in glucose. This process involves the absorption of light by chlorophyll, a green pigment in plant cells, which then uses this energy to convert carbon dioxide and water into glucose and oxygen.
| 2. What are the main stages of photosynthesis? | |
Ans. Photosynthesis can be divided into two main stages: the light-dependent reactions and the light-independent reactions. During the light-dependent reactions, light energy is used to split water molecules into oxygen, protons, and electrons. In the light-independent reactions, also known as the Calvin cycle, these products are used to produce glucose from carbon dioxide.
| 3. What factors can affect the rate of photosynthesis? | |
Ans. Several factors can influence the rate of photosynthesis, including light intensity, temperature, carbon dioxide levels, and water availability. Higher light intensity generally leads to a faster rate of photosynthesis, while extreme temperatures or limited water supply can hinder the process.
| 4. How is photosynthesis important for the environment? | |
Ans. Photosynthesis is crucial for the environment as it is the primary process through which oxygen is produced. Plants release oxygen as a byproduct of photosynthesis, which is essential for the survival of most living organisms on Earth. Additionally, photosynthesis helps regulate the levels of carbon dioxide in the atmosphere.
| 5. Can photosynthesis occur at night? | |
Ans. Photosynthesis primarily occurs during the day when there is sunlight available for plants to absorb. However, some plants, like certain succulents and cacti, perform a type of photosynthesis called CAM photosynthesis, which allows them to take in carbon dioxide at night and store it for use during the day.
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Nov 22, 2024 Last updated |
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