皮皮学，免费搜题
登录
搜题
【简答题】
蛋白质是以 __________ 为基本单位组成的生物大分子, 主要功能有: 1构成细胞和生物体的重要物质,即 ______ 蛋白,如毛发、蛛丝、肌肉蛋白; 2 __________ 作用:如绝大多数的酶是蛋白质; 3作为 __________ 的分子,对细胞代谢有 _________ 作用:如胰岛素、生长激素; 4 __________ 作用:如免疫球蛋白 ( 抗体 ) ; 5 __________ 作用:如细胞膜上的 __________ 具有转运物质的功能。红细胞中的血红蛋白能携带并运输氧气;
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】Outgoing Letter Dear Sirs, We ’ re glad that your s have accepted our prices, which arenarrowly calculated. These goods will be packed in boxes ofhalf dozen each and 10 dozen to a carton, and sh...
【简答题】Leeds Castle One of the most popular tour attraction s in Britain Opening times Open all year round except 7th and 8th November and Christmas Day (25th December) 2009. 1 April to 30 September 2009 Ope...
【简答题】Assume you have a 1-year investment horizon and are trying to choose among three bonds. All have the same degree of default risk and mature in 10 years. The first is a zero-coupon bond that pays $1,00...
【简答题】简述计算机的输入设备有哪些?输出设备有哪些?哪些设备既可作输入也可作输出设备?
【单选题】下列哪一项不是冬虫夏草的性状特征?( )
A.
虫体形如蚕
B.
外表土黄色，环纹明显
C.
足10对，中部4对明显
D.
质脆易断，断面略平坦
E.
子座细长圆柱形，上部稍膨大，质柔韧
【单选题】The price system is a complex network composed of the prices of all th e products bought and sold in the economy as well as ________ of a great number of services. [ ]
A.
the one
B.
those
C.
ones
D.
that
【简答题】Supply the missing words in the blanks to make the letter complete. Dear Sir, We have the 1)__p____ to send you with this letter a copy of our latest price 2)___f___ sports suits which are of 3)___s__...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
