高中教育高中会考(学业水平&学分认定)生物陕西省汉中市宁强天津高级中学学业水平考试生物强化训练试题3

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• 1下列是一些有机物及其水解 产物的组合，其中不正确的是

  A.质粒→核苷酸

  B.抗体→氨基酸

  C.纤维素→单糖

  D.肝糖原→丙酮酸

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• 2在化学组成上脂类与糖类的主要区别是：

  A.脂类分子中氧原子的比例高

  B.脂类主要由C、H、O组成

  C.脂类分子中C和H原子的比例高

  D.有的脂类物质中含有N、P

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• 3下列关于蛋白质和氨基酸的叙述，正确的是

  A.具有生物催化作用的酶都是由氨基酸组成的

  B.高等动物能合成生命活动所需要的20种氨基酸

  C.细胞中氨基酸种类和数量相同的蛋白质是一种蛋白质

  D.在胚胎发育过程中，基因选择性表达，细胞会产生新的蛋白质

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• 4某种植物细胞在浓度分别为200mmol∕L和400mmol∕L的M物质溶液中，细胞吸收M的速率都是10mmol∕min。对此结果最合理的解释是

  A.细胞吸收M的方式为自由扩散

  B.细胞吸收M需要载体蛋白的参与

  C.细胞吸收M的方式为主动运输

  D.所需能量供应不足

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• 520世纪80年代科学家发现了一种RNaseP酶，是由20%的蛋白质和80%的RNA组成。如果将这种酶中的蛋白质除去，并提高Mg2+的浓度，他们发现留下来的RNA仍然具有与这种酶相同的催化活性，这一结果说明

  A.RNA具有生物催化作用

  B.酶是由RNA和蛋白质组成的

  C.酶的化学本质是蛋白质

  D.绝大多数酶是蛋白质，少数是RNA

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• 6在研究温度对凝乳酶催化乳汁凝固影响的实验中，先将酶和乳汁分别放入两支试管，然后将两支试管放入同一水浴中持续15min，再将酶和乳汁混合分装到不同试管中，水浴并记录不同温度下凝乳所需要的时间，结果如下表。关于该实验的下列叙述中，错误的是 <table style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 6.75pt; BORDER-TOP: medium none; MARGIN-RIGHT: 6.75pt; BORDER-RIGHT: medium none; mso-padding-alt: 0pt 0pt 0pt 0pt; mso-border-alt: solid black .75pt; mso-table-lspace: 9.0pt; mso-table-rspace: 9.0pt; mso-table-anchor-vertical: paragraph; mso-table-anchor-horizontal: margin; mso-table-left: center; mso-table-top: 2.1pt" border="1" cellspacing="0" cellpadding="0" align="left" _dj="MsoNormalTable"><tbody><tr style="HEIGHT: 18.45pt; mso-yfti-irow: 0; mso-yfti-firstrow: yes"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 94.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 18.45pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="126">装置</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 49.5pt; PADDING-RIGHT: 5.4pt; HEIGHT: 18.45pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="66">A</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 32.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 18.45pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="43">B</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 32.95pt; PADDING-RIGHT: 5.4pt; HEIGHT: 18.45pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="44">C</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 29.45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 18.45pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="39">D</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 33.6pt; PADDING-RIGHT: 5.4pt; HEIGHT: 18.45pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="45">E</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 48pt; PADDING-RIGHT: 5.4pt; HEIGHT: 18.45pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="64">F</td></tr><tr style="HEIGHT: 19.1pt; mso-yfti-irow: 1"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 94.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.1pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="126">水浴温度/℃</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 49.5pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.1pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="66">10</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 32.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.1pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="43">20</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 32.95pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.1pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="44">30</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 29.45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.1pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="39">40</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 33.6pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.1pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="45">50</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 48pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.1pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="64">60</td></tr><tr style="HEIGHT: 19.7pt; mso-yfti-irow: 2; mso-yfti-lastrow: yes"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 94.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="126">凝乳时间/℃</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 49.5pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="66">不凝固</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 32.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="43">7.0</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 32.95pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="44">4.0</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 29.45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="39">1.5</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 33.6pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="45">4.0</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0pt; PADDING-LEFT: 5.4pt; WIDTH: 48pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0pt" valign="top" width="64">不凝固</td></tr></tbody></table>

  A.该实验说明酶的活性受温度的影响

  B.凝乳酶的最适温度接近40℃

  C.将A内混合物加温到40℃不发生凝乳

  D.将F内混合物冷却到40℃不会发生凝乳

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