10/10/2023 0 Comments Khan academy marine biologyWhile carotenoids primarily absorb blue light and reflect yellow, anthocyanins absorb blue-green light and reflect red light, according to Harvard University's The Harvard Forest. Chlorophyll is a large molecule and takes a lot of resources to make as such, it breaks down towards the end of the leaf's life, and most of the pigment's nitrogen (one of the building blocks of chlorophyll) is resorbed back into the plant, When leaves lose their chlorophyll in the fall, other leaf pigments such as carotenoids and anthocyanins begin to show. Chlorophyll absorbs red and blue light and reflects green light. Plants contain special pigments that absorb the light energy needed for photosynthesis.Ĭhlorophyll is the primary pigment used for photosynthesis and gives plants their green color, according to science education site Nature Education (opens in new tab). How do plants absorb sunlight for photosynthesis? This tradeoff between CO2 gain and water loss is a particular problem for plants growing in hot, dry environments. Stomata close to prevent water loss, but that means the plant can no longer gain CO2 for photosynthesis. When stomata open, they let in CO2 however, while open, the stomata release oxygen and let water vapor escape. Plants absorb CO2 from the surrounding air and release water and oxygen via microscopic pores on their leaves called stomata. (Image credit: Waldo Nell / 500px via Getty Images) (opens in new tab) Stomata are the gatekeepers of the leaf, allowing gas exchange between the leaf and surrounding air.
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