TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They absorb carbohydrates through the soil.
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They absorb dissolved carbohydrates via water.
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They make carbohydrates through the process of photosynthesis.
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They make carbohydrates through the process of cellular respiration.
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Detailed explanation-1: -Each cell runs on the chemical energy found mainly in carbohydrate molecules (food), and the majority of these molecules are produced by one process: photosynthesis. Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules.
Detailed explanation-2: -So, in short, plants acquire the building blocks for mass through photosynthesis, where they convert carbon dioxide and water into glucose, which can then be used to build more complex carbohydrates.
Detailed explanation-3: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
Detailed explanation-4: -This process is called photophosphorylation (Figure 20-7). The cycle of reactions that converts carbon dioxide to carbohydrates is called the Calvin cycle, after M. Calvin, who received the Nobel Prize in chemistry in 1961 for his work on determining the path of carbon in photosynthesis.