影响呼吸速率的外界因素有哪些?

2025-03-15 13:33:29
推荐回答(3个)
回答1:

(1)温度:温度通过影响细胞内与呼吸作用有关的酶的活性来影响细胞的呼吸作用。 温度过低或过高都会影响细胞正常的呼吸作用。在一定温度范围内,温度越低,,细胞呼吸越弱;温度越高,细胞呼吸越强。 (2)氧气:氧气充足,则无氧呼吸将受抑制;氧气不足,则有氧呼吸将会减弱或受抑制。 (3)水分:一般来说,细胞水分充足,呼吸作用将增强。但陆生植物根部如长时间受水浸没,根部缺氧,进行无氧呼吸,产生过多酒精,可使根部细胞坏死。 (4)CO2:环境CO2浓度提高,将抑制细胞呼吸,可用此原理来贮藏水果和蔬菜。

回答2:

氧气的浓度、温度、二氧化碳的浓度(内部还自由水的相对含量、酶的活性等)

回答3:

温度,二氧化碳浓度

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