题干

回顾教材内容填空:

(1)ATP的结构简式是____ ;ATP在有关酶的作用下磷酸基团逐个脱离下来,最后剩下的是____

(2)组成酶的基本单位是____;同无机催化剂相比,酶____的作用更显著,因而催化效率更高.

(3)有氧呼吸最常利用的物质是葡萄糖,其化学反应式可以简写成:____ 

(4)交叉互换是指减数第一次分裂前期发生在____ 之间的交换.

(5)____ 是种群最基本的数量特征.

上一题 下一题 0.0难度 选择题 更新时间:2015-04-01 04:19:35

答案(点此获取答案解析)

A\ufe63P\uff5eP\uff5eP,\u817a\u82f7,\u6c28\u57fa\u9178\u6216\u6838\u7cd6\u6838\u82f7\u9178,\u964d\u4f4e\u6d3b\u5316\u80fd,C6H12O6+6H2O+6O26CO2+12H2O+\u80fd\u91cf

同类题5

阅读理解

    New York Time—A gunman killed eight people at a mall in Omaha this afternoon and then killed himself, setting off panic among holiday shoppers, the police said.

    "The person who we believe to be the shooter has died from self-inflicted gunshot wounds," Sergeant Teresa Negron of the Omaha Police Department said at televised news." We have been able to clear the mall," she said." We don't believe we have any other shooters." The police said that at least five other people had been injured in the shootings.

    She did not give the shooter's identity." We are still conducting the investigation," Sergeant Negron said, adding that the city's mayor, who was out of town, was on his way back to Omaha.

    She said the police received a 911 call from someone inside the Westroads Mall on the west side of Omaha, and shots could be heard in the background. The first police officers arrived at the mall six minutes after the first call, she said but by then the shootings were over.

    It is reported that the gunman left a suicide note that was found at his home by relatives. A law enforcement official who spoke on condition of anonymity(匿名)said the note indicated that the gunman wanted to "go out in style."

    The shootings broke the usually ordinary routine of holiday shopping. The gunman was said by some witnesses to have fired about 20 shots into a crowd. Some customers and workers ran screaming from the mall, while others dived into dressing rooms to hide from the shooter.

    Shoppers and store workers were trapped inside the mall, which has roughly 135 stores. Others streamed out of mall exits with their hands raised. President Bush was in Omaha this morning to deliver a speech, but he had left the city by the time the shootings took place.

根据短文内容,请将单词填写在题号对应的横线上。