下列单糖中哪些是酮糖?=1 \* GB3 ①核糖= 2 \* GB3 ②核酮糖= 3 \* GB3 ③葡萄糖= 4 \* GB3 ④果糖
A. = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③
B. = 1 \* GB3 ① = 3 \*GB3 ③
C. = 2 \* GB3 ② = 4 \*GB3 ④
D. = 4 \* GB3 ④
E. = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③ = 4 \*GB3 ④
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下列的单糖分类中,哪些是正确的?①甘油醛——三碳糖② 赤癣糖——四碳糖=3 \* GB3 ③ 核糖——五碳糖=4 \* GB3 ④ 果糖——六碳糖
A. = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③
B. = 1 \* GB3 ① = 3 \*GB3 ③
C. = 2 \* GB3 ② = 4 \*GB3 ④
D. = 4 \* GB3 ④
E. = 1 \* GB3 ① = 2 \* GB3② = 3 \*GB3 ③ = 4 \*GB3 ④
下列哪些糖没有变旋现象?=1 \* GB3 ①果糖= 2 \* GB3 ② 蔗糖 =3 \* GB3 ③ 甘露糖 =4 \* GB3 ④ 淀粉
A. = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③
B. = 1 \* GB3 ① = 3 \*GB3 ③
C. = 2 \* GB3 ② = 4 \*GB3 ④
D. = 4 \* GB3 ④
E. = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③ = 4 \*GB3 ④
下列化合物中的哪些含有糖基?=1 \* GB3 ① ATP =2 \* GB3 ② NAD+ =3 \* GB3 ③ RNA =4 \* GB3 ④ 乙酰CoA
A. = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③
B. = 1 \* GB3 ① = 3 \*GB3 ③
C. = 2 \* GB3 ② = 4 \*GB3 ④
D. = 4 \* GB3 ④
E. =1 \* GB3 ① = 2 \* GB3 ② = 3 \* GB3 ③ = 4 \* GB3 ④
下列有关多糖的叙述哪些是正确的?=1 \* GB3 ① 它们是生物的主要能源② 它们以线状或分支形式存在=3 \* GB3 ③ 它们是细菌细胞壁的重要结构单元④ 它们是信息分子
A. ①②③
B. = 1 \* GB3 ①③
C. ②④= 2 \* GB3
D. = 4 \* GB3 ④
E. = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③ = 4 \*GB3 ④
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