酶的别构调节
参考答案:
特定小分子物质与酶结合后,使酶蛋白的空间结构改变、酶活性变化,这种调节酶活性的方式称为酶的别构调节。
男性,47岁,上腹疼痛7小时。伴发热,体温38.7℃,频繁呕吐。查体发现上腹部肌紧张,压痛,无移动性浊音。血白细胞17×10/L,X线检查:膈下未见游离气体。
根据此病的状况最可能的诊断是()
A.急性心肌梗死
B.急性胰腺炎
C.胆石症
D.胃溃疡穿孔
E.肠梗阻
In the New York street a small truck hit a big tree. The truck was full of glasses and they were all (41) now. The driver came out of the truck and looked at the broken glasses. He was very (42) . And people in the street were (43) for him. Then an old man walked to the driver, looked at him for a few (44) and said, "My poor boy, I think you must (45) a lot for it." "Yes, "was the bad answer. "Well, "said the old man," hold out your (46) . Here’s some money for you, and I hope all the people around here will give you (47) ,too. "With these words, he walked away. The driver held out his hat and over a hundred people came and put their money in it. At last the driver (48) a bag and put all the (49) in. Then he looked at the people and said, "Thank you very much. I’m working for that old man and all these (50) are made in his factory. \
[A] days [B] hours [C] minutes