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> 某生物实验小组为“探究酵母菌呼吸方式”设计了如下图所示实验装置。实验中,先向气球中加入10mL酵母菌培养液,再向气球中注入一定量的氧气,扎紧气球,置于装有20℃温水的烧杯-高三生物
某生物实验小组为“探究酵母菌呼吸方式”设计了如下图所示实验装置。实验中,先向气球中加入10mL酵母菌培养液,再向气球中注入一定量的氧气,扎紧气球,置于装有20℃温水的烧杯-高三生物
题目简介
某生物实验小组为“探究酵母菌呼吸方式”设计了如下图所示实验装置。实验中,先向气球中加入10mL酵母菌培养液,再向气球中注入一定量的氧气,扎紧气球,置于装有20℃温水的烧杯-高三生物
题目详情
某生物实验小组为“探究酵母菌呼吸方式”设计了如下图所示实验装置。实验中,先向气球中加入10mL酵母菌培养液,再向气球中注入一定量的氧气,扎紧气球,置于装有20℃温水的烧杯中。再将整个装置置于20℃的恒温水浴中,记录实验开始30min后烧杯中液面变化量。以下相关表述错误的是
[ ]
A.实验开始30min后烧杯内液面没有发生变化,原因是酵母菌只进行了有氧呼吸
B.若设计对照实验,则对照实验与该装置相比的不同之处是气球中不注入一定量的氧气
C.若要确认气球内酵母菌有没有进行无氧呼吸,可以检测发酵液中是否含有酒精
D.若用该实验装置探究酵母菌无氧呼吸的适宜温度,则检测指标是不同温度下烧杯中液面上升量
题型:单选题
难度:中档
来源:模拟题
答案
B
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日常生活中人们常用酵母菌发面
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题目简介
某生物实验小组为“探究酵母菌呼吸方式”设计了如下图所示实验装置。实验中,先向气球中加入10mL酵母菌培养液,再向气球中注入一定量的氧气,扎紧气球,置于装有20℃温水的烧杯-高三生物
题目详情
B.若设计对照实验,则对照实验与该装置相比的不同之处是气球中不注入一定量的氧气
C.若要确认气球内酵母菌有没有进行无氧呼吸,可以检测发酵液中是否含有酒精
D.若用该实验装置探究酵母菌无氧呼吸的适宜温度,则检测指标是不同温度下烧杯中液面上升量
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