题目内容

蛋白聚糖由一条或多条糖胺聚糖和一个核心蛋白共价连接而成,主成分为糖胺聚糖,其含量可达总质量的98%。蛋白质起点缀或者是陪衬的作用。

A. 对
B. 错

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根据参与形成糖肽键的氨基酸和糖残基种类,糖肽键分为()和()两种。

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