亚洲情人网-亚洲情人-亚洲欧洲综合-亚洲欧洲自拍-欧美专区亚洲

光合午休出現的原因

  • 生活
  • 2023-04-17 14:08

光合午休是植物因高溫、低濕引起光合作用速率下降的現象,夏季中午,光照最強,溫度較高,在高溫下,葉子的蒸騰速率增高,葉子失水嚴重,造成氣孔關閉,使二氧化碳供應不足,影響暗反應的進行,必然導致光合速率急劇下降,從而出現光合午休。

植物如何進行光合作用的:

植物進行光合作用,需在有光的條件下進行,綠色植物會吸收陽光的能力,利用體內的葉綠素,經過光和碳的反應,可以把吸收來的二氧化碳和水轉化為有機物,并且還能釋放出氧氣。光合作用會隨著光照強度的增加而增強,通過這個過程可為生物帶來物質來源和能量來源。

猜你喜歡

主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |