Flashcard-Photosynthesis&Respiration

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What is photosynthesis?

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Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy stored in glucose. It occurs in the chloroplasts of cells and involves the absorption of carbon dioxide and water, producing glucose and oxygen as byproducts.

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What is cellular respiration?

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Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water. It occurs in the mitochondria of cells and is essential for providing energy for cellular activities.

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What are autotrophs?

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Autotrophs are organisms that can produce their own food from inorganic substances. They use sunlight (in the case of photosynthetic autotrophs) or chemical energy (in the case of chemosynthetic autotrophs) to create organic compounds.

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What are heterotrophs?

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Heterotrophs are organisms that cannot produce their own food and must obtain it by consuming other organisms. They rely on autotrophs or other heterotrophs for energy and nutrients.

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What role does sunlight play in photosynthesis?

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Sunlight provides the energy required for photosynthesis. It is absorbed by chlorophyll in plant cells, initiating the chemical reactions that convert carbon dioxide and water into glucose and oxygen.

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What is the equation for photosynthesis?

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The equation for photosynthesis is: 6CO2 + 6H2O + light energy → C6H12O6 + 6O2. This represents the conversion of carbon dioxide and water into glucose and oxygen using light energy.

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What is the equation for cellular respiration?

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The equation for cellular respiration is: C6H12O6 + 6O2 → 6CO2 + 6H2O + ATP. This represents the conversion of glucose and oxygen into carbon dioxide, water, and energy (ATP).

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How do photosynthesis and cellular respiration relate to each other?

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Photosynthesis and cellular respiration are interconnected processes. The products of photosynthesis (glucose and oxygen) are the reactants for cellular respiration, while the products of cellular respiration (carbon dioxide and water) are the reactants for photosynthesis.

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What is the significance of carbon dioxide in photosynthesis?

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Carbon dioxide is a key reactant in photosynthesis. It is absorbed from the atmosphere and used, along with water, to produce glucose and oxygen during the process.

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What is the significance of oxygen in cellular respiration?

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Oxygen is a crucial reactant in cellular respiration. It is used to help break down glucose to release energy, and it is produced as a byproduct of photosynthesis.