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why do plants need to take in co2

photosynthesis The chemical change that occurs in the leaves of green plants. It uses light energy to convert carbon dioxide and water into glucose. Oxygen is produced as a by-product of photosynthesis. is a chemical reaction that happens in the chloroplasts of plant cells. It produces glucose for use by the plant, and oxygen as a waste product. Here are the equations for photosynthesis:
O P chloroplast Microscopic structure containing chlorophyl found in green plant cells where photosynthesis takes place. for photosynthesis to happen. respire To engage in respiration - the energy-producing process inside living cells plants carry out respiration as well.

Plants respire all the time because their cells need energy to stay alive, but plants can only photosynthesise when they are in the light. The diagrams summarise what this means for the overall release of carbon dioxide or oxygen from plants. Remember that respiration uses oxygen and produces carbon dioxide. carbohydrate Food belonging to the food group consisting of sugars, starch and cellulose. It is vital for energy in humans, and is stored as fats if eaten in excess.

In plants, carbohydrates are important for photosynthesis. produced in photosynthesis, green plants need to respire To engage in respiration - the energy-producing process inside living cells, just as animals do. Respiration takes place in the plant's cells, using oxygen to produce energy and giving off carbon dioxide as a waste product. So in terms of the gas taken in and the gas given out, respiration is the opposite of photosynthesis. The result is that during the day when the plant is both respiring and photosynthesising there is a two-way traffic of oxygen and carbon dioxide both into and out of the plant.

During the night when the plant is respiring but not photosynthesising, oxygen is being taken in but not given out - and carbon dioxide is being given out but not taken in. Luckily, plants use up more carbon dioxide in photosynthesis than they produce in respiration, and produce more oxygen while photosynthesising than they use up while respiring - otherwise there would not be enough oxygen in the atmosphere for us animals to breathe! Now try a

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