关于微生物代谢的调节正确的一项是-最需题库

试卷相关题目

1某一种细菌的变异菌株不需要从环境中摄取现成的亮氨酸就能生长，此菌株对链霉素敏感。要想筛选出该变异菌株，选用的培养基类型是
A.加亮氨酸，不加链霉素
B.不加亮氨酸，加链霉素
C.加亮氨酸，加链霉素
D.不加亮氨酸，不加链霉素
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2已知甲、乙两种培养基成分不同，但均适合某种细菌生长。现从甲中取少量处于对数期的细菌，接种在乙中。则在接种后的最初一段时间内，细菌在乙中的状况与原在甲中的状况相比，不发生改变的是
A.细胞分裂速度
B.诱导酶类
C.组成酶类
D.细胞的大小
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3利用基因工程手段，已成功的培育出生产干扰素的酵母菌。某制药厂引入该菌后进行生产研究。下表是在一个固定容积的发酵罐内培养该酵母菌，并定时取样测定培养基的pH及菌体数量（万个/毫升）几次取样结果如下 <table border="1" cellspacing="0" cellpadding="0" width="532" _dj="MsoNormalTable"><tbody><tr><td width="84">样品代号</td><td width="56">a</td><td width="56">b</td><td width="56">c</td><td width="56">d</td><td width="56">e</td><td width="56">f</td><td width="56">g</td><td width="56">h</td></tr><tr><td width="84">菌体数量</td><td width="56">32</td><td width="56">56</td><td width="56">127</td><td width="56">234</td><td width="56">762</td><td width="56">819</td><td width="56">821</td><td width="56">824</td></tr><tr><td width="84">pH</td><td width="56">6.0</td><td width="56">4.7</td><td width="56">5.9</td><td width="56">4.9</td><td width="56">5.7</td><td width="56">5.1</td><td width="56">5.3</td><td width="56">5.6</td></tr></tbody></table>由于取样时技术员的粗心,忘了标记取样的时间。下面对该表的叙述中不正确的是（）
A.取样次序：a→b→c→g→f→h→e→d
B.g样时次级代谢产物已有相当的积累
C.如果要扩大培养，可在c样时期选取菌种
D.d样时培养基中的养分几乎被耗尽
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4下列关于无土栽培营养液、圆褐固氮菌的培养基、植物组织培养基、动物细胞培养液的组成成分的比较,正确的是
A.无机成分相同、有机成分不同
B.无机成分不同、有机成分相同
C.无机成分、有机成分均相同
D.无机成分、有机成分均不同
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5下表比较了动、植物细胞工程的有关内容，不正确的有 <table style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 14.4pt; BORDER-TOP: medium none; BORDER-RIGHT: medium none; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext; mso-yfti-tbllook: 480" border="1" cellspacing="0" cellpadding="0" _dj="MsoNormalTable"><tbody><tr style="HEIGHT: 7.25pt; mso-yfti-irow: 0; mso-yfti-firstrow: yes"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81pt; PADDING-RIGHT: 5.4pt; HEIGHT: 7.25pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt" width="108"> </td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 7.25pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" width="216">植物细胞工程</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 7.25pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" width="216">动物细胞工程</td></tr><tr style="HEIGHT: 7.2pt; mso-yfti-irow: 1"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81pt; PADDING-RIGHT: 5.4pt; HEIGHT: 7.2pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="108">技术手段</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 7.2pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">植物组织培养、植物体细胞杂交</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 7.2pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">动物细胞培养、动物细胞融合</td></tr><tr style="HEIGHT: 17.25pt; mso-yfti-irow: 2"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="108">特殊处理</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">酶解法去除细胞壁</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">胰蛋白酶处理获取细胞悬浮液</td></tr><tr style="HEIGHT: 17.25pt; mso-yfti-irow: 3"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="108">主要应用</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">人工种子、实现物种间的杂交</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">单克隆抗体的制备等</td></tr><tr style="HEIGHT: 17.25pt; mso-yfti-irow: 4"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="108">培养条件区别</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">植物激素</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">动物血清不可缺少</td></tr><tr style="HEIGHT: 17.25pt; mso-yfti-irow: 5; mso-yfti-lastrow: yes"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="108">依据的原理</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">细胞的全能性</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" width="216">细胞的全能性</td></tr></tbody></table>
A.0处
B.1处
C.2处
D.3处
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6对细菌群体生长规律测定的正确表述是
A.在液体培养基上进行
B.至少接种一种细菌
C.接种一个细菌
D.及时补充消耗的营养物质
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7下列说法正确的是①人工诱变、细胞工程、基因工程等都可对微生物进行定向改造②环境条件的变化不仅影响微生物的生长繁殖，也会影响微生物的代谢途径③发酵罐中微生物的生长繁殖、代谢产物的形成都与搅拌速度有关④单细胞蛋白是从微生物细胞中提取出来的
A.①②③
B.②③
C.①④
D.①②③④
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8下列微生物的产物中没有菌种特异性的一组是
A.氨基酸、核苷酸、多糖、毒素、激素
B.核苷酸、维生素、多糖、脂类、氨基酸
C.多糖、脂类、维生素、抗生素、氨基酸
D.氨基酸、多糖、维生素、色素、抗生素
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9关于青霉素生产的叙述，正确的是
A.青霉素是青霉菌生长代谢中重要的初级代谢产物
B.用紫外线、激光、化学诱变剂处理青霉菌再经筛选的方法可以选育高产菌种
C.发酵罐接种后必须进行灭菌处理
D.在青霉菌生长的稳定期，活菌数不再增加，青霉菌产量也不再增加
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10探究某种因素对细菌生长的影响，下列各项中措施与目的不一致的是
A.接对数期菌种，缩短调整期
B.增加培养基总量，提高细菌的K值
C.对数期添加不同的培养基，繁殖速度加快
D.连续培养，延长稳定期
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