题干

如图为某激素蛋白的合成与分泌过程示意图(其中物质X代表氨基酸,a、b、c、d、e表示细胞结构).下列说法中正确的是(    )

A:图中a、b、c、d依次表示内质网、高尔基体、囊泡、细胞膜

B:图中a、b、c中分别进行的是脱水缩合、蛋白质加工和运输过程

C:图中e内,丙酮酸彻底氧化分解产生CO2的过程中没有O2参加

D:该过程不在原核细胞中进行,因为原核细胞中无a、b、c、d、e等结构

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答案(点此获取答案解析)

C

同类题3

阅读理解

    We were on a visit to Monkey Island. Jim thought we should try water skiing(滑水).

    We can get a boat and ski at Monkey Island.

   Don't go water skiing near Monkey Island today,” said the woman standing near the boats. “There might be sharks(鲨鱼) in the water.”

    “I don't think so.” said Jim who thought he knew everything.

    “I wouldn't go water skiing in the sea near Monkey Island today,” said the man with the woman. “They saw sharks in the water yesterday.”

    “The sharks won't hurt me,” said Jim with a big smile on his face.

      Another man getting out of a boat said, “I'm sure we just saw a shark in the water a few minutes ago.”

    “Don't worry about me,” said Jim. “I don't worry about sharks.”

    Jim and his two friends, Bill and Bruce pushed the boat into the water. Jim was driving the boat. He drove very fast and sprayed water on everyone standing near the boat.

    Jim drove the boat to the middle of the sea near Monkey Island. Everyone could see him and the boat. He wanted to show everyone how well he could water ski.

    “You drive the boat, Bill,” Jim said. “Bruce, you watch me and the rope while I water ski.”

    “What about the sharks?” asked Bill.

    “Forget about the sharks,” said Jim. “I'm not afraid of sharks.”

    Jim got into the water. He was putting his feet in the water skis. Then Jim felt something large and hard touch his leg as it swam past him. Suddenly, a brown fin(鳍) moved through the water towards Jim.

    Later, when Bill and Bruce stopped laughing, they said, “We never saw anyone move so fast! You were running on top of the water to get back in the boat! You even left the water skis in the water.

    “There it is again! Shark! Shark!” cried Jim.

    Everyone laughed----even the people standing on shore.

    The dolphin(海豚) came to surface again, took a deep breath, smiled at Jim and went back down into the deep water.