光合作用的意义是什么

植物图片 2020-02-19 09:37

我们都知道，不论我们种植什么植物，植物都需要进行光合作用，总的来说这是一个能量转换的过程。对维持植物健康生长是有很大的帮助，植物生长完全需要光合作用来制造有机物，可以说叶片的主要功能中，光合作用占了绝大部分。光合作用具体的意义是什么，它对植物和外界有什么作用是文章接下来主要的内容。

一、光合作用的作用

主要是绿色植物利用光能，将二氧化碳和水合成转化为富能有机物，在过程中释放氧气，释放氧气时，光合作用产生的主要有机物碳水化合物就会同时释放能量。

接受光能

二、光合作用的意义

1.太阳能转为化学能

植物利用水和二氧化碳，把太阳光能转化为生物化学能量，这些能量会储存在制造的有机化合物中，现在人们使用的石油、煤炭其实也是古时候绿色植物光合作用的产物。这些能量不光可以供植物生长，人类食用这些植物后，可以满足人体营养需求，也是人类活动的能量来源。

叶片进行

2.无机物转为有机物

世界主要的有机物都是依靠植物完成的，绿色植物参与转化碳素，制造成淀粉等有机物，动物吸收利用这些有机物，同时吸收氧气释放出二氧化碳，这样所有动物也参与到有机物转化的循环中，为其他生物提供食物来源。人类生存所需的粮食、糖、水果等都来自光合作用，它推动了人类社会的发展。

海里植物

3.调节大气成分

光合作用保持了大气中应该有的含氧量，这光合作用过程中释放的氧气为动物有氧呼吸提供了条件，慢慢形成了臭氧层，这就可以减少太阳光中的紫外线辐射伤害。光合作用清除空气中二氧化碳，保持生物圈碳氧平衡。

通过以上内容，我们可以发现，光合作用最主要的意义就是同化碳素，制造有机物供其他生物的能量，提供生物生存资源，间接推动社会的发展 。

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