“大头婴儿”出生后一直服用几乎不含蛋白质的劣质奶粉，出现了头大、嘴小、脸肿的症状，利用所学的生物学知识，找出错误的选项：（ ）
A．蛋白质是构成人体的基本物质
B．人体的生长发育离不开蛋白质
C．组织细胞的更新离不开蛋白质
D．蛋白质还能被分解，为人体的生理活动提供能量，是最重要供能物质
答案：D
题目分析：糖类、脂肪、蛋白质都是组成细胞的主要物质，并能为生命活动提供能量．糖类是主要的供能物质，能为人体提供能量；蛋白质是构成人体细胞的基本物质，与人体的生长发育以及细胞的修复和更新有重要关系，也能提供少量的能量；脂肪是备用能源，一般存储在皮下备用．据此可知，服用一种几乎不含蛋白质的劣质奶粉，会影响生长发育，可见D符合题意．故选：D
1. Which of the following statements about National Geographic Museum is TRUE? A. It’s open from 10 am to 6 pm each day. B. It’s near the Judiciary Square stop on the Yellow line. C. It is closed on Thanksgiving day, Christmas and New Year’s Day. D. You have to go there before April 1 to see the exhibition of warriors. 2. How much should Mr. Brown pay if he takes his 6-year-old son to the Newseum? A. $18 B. $32.8 C. $19.95 D. $32 3. To get more information about the Newseum, you can ________. A. call 202-857-7700 B. call 888-639-7386 C. log onto http://www.warriorsdc.org D. log onto http://www.museum.org |