4008-125-888
首页>ACT>ACT科学>ACT科学Session1生物(实战练习Practice 5)

ACT科学Session1生物(实战练习Practice 5)

2017-05-08 15:21来源:互联网作者:上海管理员

摘要:

  (52C-Passage VI)

  Most plants require specific substances known as minerals to grow and reproduce. The following table provides a list of the minerals essential to flowering plants and a description of their functions. The first seven listed are called macronutrients, since they are present in large quantities in the plants. The other minerals are called micronutrients because they are often present in trace amounts. The number of pounds of each mineral required to grow 100 bushels of corn is also depicted in the table.

  Practice 5.1

  According to the information presented in the table, flowering plants require iron in order to:

  A. fix nitrogen.

  B. activate porphyrins.

  C. utilize calcium.

  D. synthesize chlorophyll

  Practice 5.2

  A scientist hypothesized that some minerals are required in minute quantities and are used as components of enzymes by flowering plants. The data for which of the following minerals would support this hypothesis?

  F. Calcium

  G. Phosphorus

  H. Sodium

  J. Zinc

  Practice 5.3

  A botanist in South America found a new variety of corn identical to the type described in the table with the exception that it utilizes copper, instead of iron, in activating porphyrins. Approximately how many pounds of copper would you predict would be required to grow 100 bushels of this new corn?

  A.0.3 lb

  B. 2.0 lb

  C. 4.0 lb

  D. 50.0 lb

  Practice 5.4

  Which of the following conclusions about the mineral requirements of flowering plants is consistent with the data presented in the table?

  F. Plants require larger amounts of minerals than are available in the soil.

  G. Plants require some minerals whose functions remain unknown.

  H. Deficiencies of certain minerals have little, if any, effect on plant growth.

  J. The addition of minerals to the soil in the form of fertilizer results in a smaller yield of corn.

  Practice 5.5

  A researcher using the table concluded that minerals used as components of enzymes and as cofactors for enzymes are required in very small amounts. This is supported by the information given for all of the following elements EXCEPT:

  A. magnesium.

  B. manganese.

  C. molybdenum.

  D. zinc.

  Answers for Practice 17-32: Practice 5 B J B G A

  上海新航道学校作为业内良心ACT培训机构 ,坚持“英语”的理念,注重学术研究,注重培养学生的学习能力。想成为下一个高分学员?赶紧来新航道报名ACT培训班 吧!

免费领取资料

免费领取最新剑桥雅思、TPO、SAT真题、百人留学备考群,名师答疑,助教监督,分享最新资讯,领取独家资料。

方法1:扫码添加新航道老师

微信号:shnc_2018

方法2:留下表单信息,老师会及时与您联系

热门课程

  • 走读班(6-8人)
  • 走读班(3-6人)
  • ACT一对一
课程名称 班级人数 课时 学费 报名
ACT强化托管班(6-8人,走读) 3-6人 64 ¥21800 在线咨询
ACT冲刺托管班(6-8人,走读) 3-6人 64 ¥11800 在线咨询
课程名称 班级人数 课时 学费 报名
课程名称 班级人数 课时 学费 报名
ACT一对一 1 按需定制 ¥980元 在线咨询

热门搜索:

免责声明
1、如转载本网原创文章,请表明出处;
2、本网转载媒体稿件旨在传播更多有益信息,并不代表同意该观点,本网不承担稿件侵权行为的连带责任;
3、如本网转载稿、资料分享涉及版权等问题,请作者见稿后速与新航道联系(电话:021-64380066),我们会第一时间删除。

  • 徐家汇校区
  • 人民广场校区
  • 浦东校区
  • 中山公园校区
  • 杨浦校区
  • 闵行校区
  • 松江校区
  • 封闭集训营
  • 地址:徐汇区裕德路126号

    乘车路线:地铁1、4号线上海体育馆、3号线9号线宜山路站、11号线上海游泳馆站

  • 地址:南京西路338号天安中心24楼

    乘车路线:地铁1、2、8号线人民广场站

  • 地址:浦东新区世纪大道1128号耀通科技大厦3楼(地铁2号线世纪大道站12号口出)

    乘车路线:地铁2、4、6号线世纪大道站

  • 地址:长宁路1158号 贝多芬广场 A座4楼414室

    乘车路线:乘车路线:地铁3、4号线中山公园站

  • 地址:杨浦区国宾路18号万达广场A座18楼

    乘车路线:地铁10号线五角场站

  • 地址:东川路1779-19号

    乘车路线:地铁5号线 东川路站4号口出

  • 地址:松江大学城四期校区:文汇路928弄想飞天地2204

    乘车路线:地铁9号线松江大学城站下

  • 地址:上海市浦东新区惠南镇拱极路2151号

    乘车路线:地铁16号线惠南站

总部地址:北京市海淀区中关村大街28-1号6层601 集团客服电话:400-097-9266 总部:北京新航道教育文化发展有限责任公司

Copyright © www.xhd.cn All Rights Reserved 京ICP备05069206

  • 微信公众号
  • 微信社群