某种蔬菜离体叶片在黑暗中不同温度条件下呼吸速率和乙烯产生量的

某种蔬菜离体叶片在黑暗中不同温度条件下呼吸速率和乙烯产生量的变化如图所示,t1、、t­­表示10-30°C之间的两个不同温度。下列分析正确的是

A与t1相比,t­­2时呼吸速率高峰出现时间推迟且峰值低,不利于叶片贮藏

B与t­­2相比,t­­1时乙烯产生量高峰出现时间提前且峰值高,有利于叶片贮藏

Ct1t­­条件下呼吸速率的变化趋势相似,t1>t­­2,t1时不利于叶片贮藏

Dt1t­­条件下乙烯产生量的变化趋势相似,t1<t­­2,t1时不利于叶片贮藏

 

答案

C

蔬菜的贮藏应该是选择呼吸速率低的环境中,以及自身成熟慢的特点A选项有利于叶片贮藏呼吸速率高峰出现时间推迟且峰值低,消耗的有机物少,且贮藏时间长。B,t­­1时乙烯产生量高峰出现时间提前且峰值高,叶片提前衰老的速度快,不利于贮藏. D从图上的曲线可以读出t1>t­­2 所以D错

 

相关题目

 It is so wet there that the trees are extremely tall, some ______over 90metre
 It is so wet there that the trees are extremely tall, some ______over 90metres.    A. measures       B. measuring       C. measured         D. measure
BEIJING,Oct.14(Xinhua)——A total of 120 middle school students from 35 countr
BEIJING,Oct.14(Xinhua)——A total of 120 middle school students from 35 countries will attend the final of an international China language contest,to be held in southwest China’s Chongqing Municip
下列各项,正确地反映了东汉时期国际交往情况的是     
下列各项,正确地反映了东汉时期国际交往情况的是                          (    )     A.佛教在这一时期传入中原地区     B.开
In China, shaking hands with each other is a common________ when people meet for
In China, shaking hands with each other is a common________ when people meet for the first time.      A.sense              B.practice             C.scene        
The seat belt in the car sometimes can          you from traffic accide
The seat belt in the car sometimes can          you from traffic accidents. A. protect         B. preventC. pretend         D. endanger
The Marquis was thought _________ some terrible wrongs to his tenants.    A. o
The Marquis was thought _________ some terrible wrongs to his tenants.    A. of doing B. that he had done      C. to have done   D. to have been done  
唐代五代,中央集权大为削弱,扭转这一局面,宋初采取的
唐代五代,中央集权大为削弱,扭转这一局面,宋初采取的重要措施之一是 A.文官任知州  B.设三司使  C.设枢密院 D.施行将兵法
读下面两区域田,回答下面试题。 图中甲、乙两地发展种植
读下面两区域田,回答下面试题。 图中甲、乙两地发展种植业的主要制约因素分别是       (    ) A.土壤、水源       B.光热、降水  C.

最新题目