题干

为探究酵母菌的细胞呼吸,将酵母菌破碎并进行差速离心处理,得到细胞质基质和线粒体,与酵母菌分别装入A~F试管中,加入不同的物质,进行了如下实验(见下表)

试管编号

加入的物质

细胞质基质

线粒体

酵母菌

A

B

C

D

E

F

葡萄糖

﹣

+

﹣

+

+

+

丙酮酸

+

﹣

+

﹣

﹣

﹣

氧气

+

﹣

+

﹣

+

﹣

注:“+”表示加入了适量的相关物质,“﹣”表示未加入相关物质.

(1)会产生CO2和H2O的试管有 ____ ,会产生酒精的试管有 ____ ,根据试管 ____ 的实验结果可判断出酵母菌进行无氧呼吸的场所.(均填试管编号)

(2)有氧呼吸产生的[H],经过一系列的化学反应,与氧结合形成水.2,4﹣二硝基苯酚(DNP)对该氧化过程没有影响,但使该过程所释放的能量都以热的形式耗散,表明DNP使分布在____的酶无法合成ATP.若将DNP加入试管E中,葡萄糖的氧化分解____ (填“能”或“不能”)继续进行.

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答案(点此获取答案解析)

C、E,B、F,B、D、F,线粒体内膜,能

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    Getting your children to study can be a little like getting them to eat their vegetables. ____ Make a study time and have it at the same time every day. This will help your kids to learn to schedule their day and will give them a sense of control over how they spend their time.

    Allow them to study in blocks of time,such as for half an hour with a five-minute break in the middle. ____ Ideal(理想的) study times are after dinner or right after school before dinner.

    Never allow your children to study in front of the television,as that will encourage passive activity. ____ You'll also need to help your kids find the right place to study. After you've set up a good study time for little learners,set up a good place where they can get those creative juices flowing. ____ Make sure there is a table or a desk and a comfortable chair.

    ____ This includes helping them out with their homework sometimes and being there for them with the answers to any questions. The input you give your children during study periods will help form a bond and help make studying enjoyable.

A.Pick a place where your children can study properly.B.Hold them to the schedule they create for themselves.

C.Finally,spend time with your kids when they're studying.

D.Keep the atmosphere light and offer lots of encouragement,too.

E.Instead,use TV as a treat or a reward when the homework is completed.

F.Try to stop this bad habit by offering some sort of reward.

G.One of the best ways to form good study habits for your kids is to design a schedule that they keep to.