1. Which cell organelle is necessary for photosynthesis?
2. Name different types of Plastids. Also write their functions?
3. Explain photosynthesis in brief?
4. Which plastid has chlorophyll in it? Name two cell organelles that have their own DNA ?
5. Which gas is released out and taken up by the plant from atmosphere in photosynthesis?
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Answers
1.Chloroplasts are biconvex shaped, semi-porous, double membraned, cell organelle found within the mesophyll of the plant cell. They ...Chromoplasts.Gerontoplasts.Leucoplasts.Inheritance of Plastids.
3.Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
5.Plants use photosynthesis as a way of producing glucose. They take in light energy from the sun and water and carbon dioxide from the air. This is then used to produce oxygen and glucose. This often considered a reversible reaction, as the reverse of this reaction (glucose and oxygen to water, carbon dioxide and energy) is respiration.
Answer:
1) In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.
2)Leucoplasts
LeucoplastsAmyloplasts – Amyloplasts are greatest among all three and they store and synthesize starch.
LeucoplastsAmyloplasts – Amyloplasts are greatest among all three and they store and synthesize starch.Proteinoplasts – Proteinoplasts helps in storing the proteins that a plant needs and can be typically found in seeds.
LeucoplastsAmyloplasts – Amyloplasts are greatest among all three and they store and synthesize starch.Proteinoplasts – Proteinoplasts helps in storing the proteins that a plant needs and can be typically found in seeds.Elaioplasts -Elaioplasts helps in storing fats and oils that are needed by the plant.
3)Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere. Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy.
4)chloroplast is a plastid which have chlorophyll in itt. Mitochondria and plastid have their own DNA.
5)Oxygen is released during the light reactions of photosynthesis.