胆固醇对下列哪个来说是必需营养物: = 1 \*GB3 ① 哺乳动物 = 2 \* GB3 ② 软体动物 = 3 \* GB3 ③ 鸟类 = 4 \* GB3 ④ 昆虫
A: = 1 \* GB3 ① = 2 \* GB3② = 3 \*GB3 ③
B: = 1 \* GB3 ① = 3 \*GB3 ③
C: = 2 \* GB3 ② = 4 \*GB3 ④
D: = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③ = 4 \*GB3 ④
A: = 1 \* GB3 ① = 2 \* GB3② = 3 \*GB3 ③
B: = 1 \* GB3 ① = 3 \*GB3 ③
C: = 2 \* GB3 ② = 4 \*GB3 ④
D: = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③ = 4 \*GB3 ④
举一反三
- 对哺乳动物而言，下列哪些化合物是必需脂酸? =1 \* GB3 ①油酸= 2 \* GB3 ②亚油酸 =3 \* GB3 ③软脂酸= 4 \* GB3 ④亚麻酸 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
- 下列哪个组织能从脂酸合成酮体? = 1 \* GB3 ① 红血球 =2 \* GB3 ② 脑 =3 \* GB3 ③ 骨骼肌 =4 \* GB3 ④肝 A: = 1 \* GB3 ① = 3 \*GB3 ③ B: = 2 \* GB3 ② = 4 \*GB3 ④ C: = 4 \* GB3 ④ D: = 1 \* GB3 ① = 2 \*GB3 ② = 3 \*GB3 ③ = 4 \*GB3 ④
- 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
- 下列细胞结构中属于具双层膜结构和不具膜结构的分别是①中心体②高尔基体③溶酶体④细胞核⑤线粒体⑥内质网⑦质粒⑧核糖体=9*GB3=10*GB3=2*GB3=5*GB3=6*GB3=1*GB3=3*GB3=8*GB3=4*GB3④=5*GB3⑤=9*GB3⑨和=1*GB3①=7*GB3⑦=8*GB3⑧C.=2*GB3②=3*GB3③=4*GB3④=9*GB3⑨和=1*GB3①=3*GB3③=10*GB3⑩D.=4*GB3④=5*GB3⑤=9*GB3⑨和=1*GB3①=8*GB3⑧=10*GB3⑩
- α-淀粉酶水解支链淀粉的结果是[br][/br] ①完全水解成葡萄糖和麦芽糖 ②主要产物为糊精 ③使α-1,6糖苷键水解 ④在淀粉-1,6-葡萄糖苷酶存在时,完全水解成葡萄糖和麦芽糖 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: = 1 \* GB3 ① = 2 \* GB3 ② = 3 \* GB3 ③ = 4 \* GB3 ④