问题
单项选择题
磷酸化是指在某些物质分子上加入一个磷酸基团,如三磷酸腺苷(ATP)就是由二磷酸腺苷(ADP)磷酸化而。下列结构中不能发生ADP磷酸化的是()
A.细胞质基质
B.叶绿体基质
C.叶绿体类囊体薄膜
D.线粒体内膜
答案
参考答案:B
解析:
细胞中合成ATP的部位有:细胞质基质、线粒体、叶绿体的类囊体膜。
考点:本题考查ATP的合成,意在考查识记能力及获取信息,利用信息的能力。
磷酸化是指在某些物质分子上加入一个磷酸基团,如三磷酸腺苷(ATP)就是由二磷酸腺苷(ADP)磷酸化而。下列结构中不能发生ADP磷酸化的是()
A.细胞质基质
B.叶绿体基质
C.叶绿体类囊体薄膜
D.线粒体内膜
参考答案:B
解析:
细胞中合成ATP的部位有:细胞质基质、线粒体、叶绿体的类囊体膜。
考点:本题考查ATP的合成,意在考查识记能力及获取信息,利用信息的能力。
完型填空 | |||
What do you do at the weekend? Some people like to 1 but otherslike to go out for 2 or to play soccer. My friend Jack works hard in a factory during the 3 . At the weekend, he always does the 4 thing. On Saturday he 5 his car and on Sunday he goes with his family to a village by 6 . His uncle and aunt have a farm 7 . It isn't a big 8 , but there is always much to do on it. The children help to give the animals their 9 . Jack and his wife help in the fields. At the end of the day, they' re all 10 and Jack's aunt gives them a big meal. | |||
( )1. A. go to work ( )2. A. a walk ( )3. A. day ( )4. A. good ( )5. A. drives ( )6. A. car ( )7. A. too ( )8. A. that ( )9. A. water ( )10. A. happy | B. stay at home B. shop B. year B. hard B. mends B. bus B. here B. this B. food B. thirsty | C. go hiking C. school C. holiday C. same C. washes C. train C. there C. it C. houses C. tired | D. see friends D. something D. week D. different D. takes D. bike D. near D. one D . vegetables D. hungry |