题干

某实验小组将玉米幼苗置于一密闭容器内,测定温度对光合作用和细胞呼吸的影响(用容器内CO2的变化量表示)实验结果如下(“+”表示增加表示减少),下列有关说法正确的是( )

温度(℃)

10

15

20

25

30

35

40

45

适宜光照

-12

-17

-23

-26

-35

-26

-24

-15

黑暗

+6

+11

+18

+25

+35

+40

+32

+20

A:由表中数据可知,光合酶和细胞呼吸酶的最适温度相同

B:在适宜光照下,35℃时光合速率小于呼吸速率

C:由表可知,在适宜光照下,最有利于植物生长的温度是30℃

D:在黑暗情况下,叶肉细胞内无ATP的形成

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C

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