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Question 1 · Single choice · 中档
小萌清晰观察到蚕豆叶下表皮细胞如图1,想进一步观察视野中央的细胞,他需要进行的 第一步操作是( )
A. 转动转换器 B. 调节细调节器 C. 调节粗调节器 D. 移动玻片
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Question 2 · Single choice · 中档
A. 生态多样性 B. 物种多样性 C. 遗传多样性 D. 生境多样性
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Question 3 · Single choice · 中档
据下图分析胆固醇转化为胆固醇酯的过程的反应类型为( )
A. 合成反应 B. 水解反应 C. 氧化分解反应 D. 转氨基作用
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Question 6 · Single choice · 中档
据图在“探究细胞外界溶液浓度与质壁分离程度关系”的实验中,滴加清水后出现的现象 有( )
A. 液泡变大 B. 原生质层收缩 C. 细胞皱缩 D. 液泡颜色加深
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Question 7 · Single choice · 中档
为了抗癌通过一些手段给某种免疫细胞增加特异性受体来更好地杀死癌细胞,选的细胞 最可能是( )
A. 巨噬细胞 B. T淋巴细胞 C. 浆细胞 D. B淋巴细胞
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Question 8 · Single choice · 中档
游客给猴子投喂不含脂肪的香蕉后,导致猴子肥胖,据图分析原因是( )
A. ①过程增强 B. ②过程增强 C. ①过程减弱 D. ②过程减弱
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Question 9 · Single choice · 中档
A. 纤维素 B. 淀粉 C. 糖原 D. 维生素
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Question 11 · Single choice · 中档
A. 细胞内液渗透压降低 B. 细胞外液渗透压降低 C. 细胞内液含量降低 D. 细胞外液含量降低
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Question 12 · Single choice · 中档
诺如病毒危害性极大, 经检测病毒的遗传物质中含有核糖, 该病毒含有的基因有 ( ) ①衣壳蛋白基因 ②RNA复制酶基因 ③核糖体蛋白基因 ④特异性入侵宿主细胞的表面蛋白基因
A. ①②③ B. ②③④ C. ①②④ D. ①③④
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Question 13 · Single choice · 中档
图为初级精母细胞的染色体组成,则该细胞分裂形成的次级精母细胞的染色体组成可能 为( )
A. 1、1'和2、2’ B. 1、2和3、4 C. 3、3’和4、4’ D. 2、2’和4、4’
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Question 15 · Single choice · 中档
颤藻和水绵都是绿色丝状水生生物,将它们放在同一块载玻片上染色后用光学显微镜的 高倍镜观察,确认丝状物是水绵的依据是( )
A. 叶绿体 B. 细胞膜 C. 细胞壁 D. 核糖体
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Question 16 · Single choice · 中档
流浪蚁是一种生活在热带的极具危险的入侵物种,由于商贸活动入侵到温带,形成入侵 物种,在温带形成的种群基因库变化趋势为( )
A. 持续增大 B. 持续减小 C. 先减小后稳定 D. 先增大后稳定
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Question 18 · Single choice · 中档
在a、b、c、d条件下,测得酵母菌呼吸时CO 2 和O 2 体积变化的相对值如表。 若底物是葡萄糖,下列关于d条件的叙述中正确是( ) 条件 a b c d CO2 释放量 7 7 7 10 O2 吸收量 7 7 7 7
A. 有氧呼吸加快 B. 无氧呼吸加快 C. 有氧呼吸减慢 D. 无氧呼吸减慢
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Question 19 · Single choice · 中档
d为隐性基因,决定螺壳左旋,D为显性基因,决定螺壳右旋,两只田螺,母本为dd, 父本为DD,子代表现型受母本基因型控制,已知F 1 代皆为左旋,F1 自交后代的表现型比例 为( )
A. 全左旋 B. 右旋:左旋=3:1 C. 全右旋 D. 右旋:左旋=1:3
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Question 21 · 中档
(2分)若要筛选出土壤中与菌株S有协同作用的有益菌,应选择施加菌株S后数 量 变化趋势是 (下降/上升/不变)的有益菌。
Page 5 页 共 10 【阶段二】筛选与菌株S有协同作用的有益菌。过程如图7.其接菌液并培养后如表2。
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Question 25 · 中档
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Question 35 · 中档
40.(4分)在Ⅱ中,培养基上发出绿色荧光的受体细胞中,一定含有的基因是 (填写 编号) ;Ⅱ筛选到的受体细胞会有基因 (填写编号) 。 ①天然DszC酶基因 ②DszC突变基因 ③绿色荧光蛋白基因 ④抗性基因
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Question 38 · 中档
40.(4分)在Ⅱ中,培养基上发出绿色荧光的受体细胞中,一定含有的基因是 (填写 编号) ;Ⅱ筛选到的受体细胞会有基因 (填写编号) 。 ①天然DszC酶基因 ②DszC突变基因 ③绿色荧光蛋白基因 ④抗性基因
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Question 39 · 中档
41.(2分)Ⅰ~Ⅲ中DszC基因表达的阶段是 。
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