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习题练习：SL/HL Topic B 3.1 Gas exchange
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 作者: admin  发布日期: 2025-01-27 10:23    总分: 12分  得分: _____________

答题人: 游客未登录  开始时间: 25年01月27日 10:23  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) (组内1/3) 切至整卷模式 搜藏此题  
第 1 题组 (共 3 题 3 分)
  1. Which of the following app42dt puki;uix. 7mq-oly to gaseous exchange in a leaf and in the lung?
I. Oxygen moves down its concentration gradient.
II. Gases move by active transport.
III. Gases dissolve before entering the cells.
IV. Oxygen and carbon dioxide diffuse in opposite directions.

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2#
 
单选题 ( 1.0 分) (组内2/3) 切至整卷模式 搜藏此题  
  2. Which of the following rows correctly match the main a5m*u(nw5 ok afunctions of the tissues found in a transverse sectiouw*oa55 m( aknn of a leaf?


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3#
 
单选题 ( 1.0 分) (组内3/3) 切至整卷模式 搜藏此题  
  3. Which of the following are adaptat+k (68hy(*v aqolgidb ions of the spongy mesophyll for the intake of carbon dioxide ty l( +8* da6i(ovkqgbho photosynthetic leaf cells?
I. A water layer on the cell surface.
II. Air spaces between the mesophyll cells.
III. The presence of stomata.
IV. A large surface area.

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4#
 
问答题 ( 1.0 分) (组内1/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第1/7题 
题组内容描述:
4. A potometer is used to measure water uptake by a cut shoot of a plant. The data shows the mean rate of water uptake by cut shoots of the same plant for 10 minutes. Four environmental conditions were tested, with 6 repeats at each. The first measurement was discarded and the mean of the following 5 measurements was recorded in the table. The temperature, light intensity and humidity were monitored 10 times during each measurement of water uptake and their mean values recorded in the table.
(a) List the independent and dependent variables in t 5axe1k1qz fi,his investigation.
Dependent variable ………………………………………….
Independent variables ………………………………………
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5#
 
问答题 ( 1.0 分) (组内2/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第2/7题 
题组内容描述:
4. A potometer is used to measure water uptake by a cut shoot of a plant. The data shows the mean rate of water uptake by cut shoots of the same plant for 10 minutes. Four environmental conditions were tested, with 6 repeats at each. The first measurement was discarded and the mean of the following 5 measurements was recorded in the table. The temperature, light intensity and humidity were monitored 10 times during each measurement of water uptake and their mean values recorded in the table.
(b) Light intensity was a controlled variable inq82zhli -fr1c this investigation. Explain why 1z 2r-8hqcl ifthe light intensity should be controlled.
参考答案:    
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6#
 
问答题 ( 1.0 分) (组内3/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第3/7题 
题组内容描述:
4. A potometer is used to measure water uptake by a cut shoot of a plant. The data shows the mean rate of water uptake by cut shoots of the same plant for 10 minutes. Four environmental conditions were tested, with 6 repeats at each. The first measurement was discarded and the mean of the following 5 measurements was recorded in the table. The temperature, light intensity and humidity were monitored 10 times during each measurement of water uptake and their mean values recorded in the table.
(c) Suggest why the first mkesx3z+, hd z2easurement in each condition was discarded from the calculation of the mean rate of water uptake for each conzxh+,3zke2d s dition.
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7#
 
问答题 ( 1.0 分) (组内4/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第4/7题 
题组内容描述:
4. A potometer is used to measure water uptake by a cut shoot of a plant. The data shows the mean rate of water uptake by cut shoots of the same plant for 10 minutes. Four environmental conditions were tested, with 6 repeats at each. The first measurement was discarded and the mean of the following 5 measurements was recorded in the table. The temperature, light intensity and humidity were monitored 10 times during each measurement of water uptake and their mean values recorded in the table.
(d) Calculate the percentage increajv* jiijro41 p6xulq )bh6o-/se in water uptake between experiment 1 and 3o6xbu*pvjijj h 4l)-i qro/16.
参考答案:    
本习题练习题目来源于无忧得胜-网上国际课程 (https://5edu.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
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8#
 
问答题 ( 1.0 分) (组内5/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第5/7题 
题组内容描述:
4. A potometer is used to measure water uptake by a cut shoot of a plant. The data shows the mean rate of water uptake by cut shoots of the same plant for 10 minutes. Four environmental conditions were tested, with 6 repeats at each. The first measurement was discarded and the mean of the following 5 measurements was recorded in the table. The temperature, light intensity and humidity were monitored 10 times during each measurement of water uptake and their mean values recorded in the table.
(e) Explain the increase mm y4/wajxdr (8.iz* xin water uptake between trials 2 and 3.
参考答案:    

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9#
 
问答题 ( 1.0 分) (组内6/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第6/7题 
题组内容描述:
4. A potometer is used to measure water uptake by a cut shoot of a plant. The data shows the mean rate of water uptake by cut shoots of the same plant for 10 minutes. Four environmental conditions were tested, with 6 repeats at each. The first measurement was discarded and the mean of the following 5 measurements was recorded in the table. The temperature, light intensity and humidity were monitored 10 times during each measurement of water uptake and their mean values recorded in the table.
(f)The image shows the stomata in emm cb+8kt33rm/,rfg9pqk ,ythe lower epidermis of one leaf of the stem used in the investigation and a micrometer. Both images are taken using the same magnification o3e9p,b+/3 yc rgmqkm 8tkfm,rf x200 in a light microscope
Explain how you could use the photographs of the micrometer and of the stomata to estimate thestomatal density of the leaf.
(one stomata is labelled A in the photograph)
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10#
 
问答题 ( 1.0 分) (组内7/7) 切至整卷模式 搜藏此题  
第 2 题组 (共 7 题 7 分) 当前第7/7题 
题组内容描述:
4. A potometer is used to measure water uptake by a cut shoot of a plant. The data shows the mean rate of water uptake by cut shoots of the same plant for 10 minutes. Four environmental conditions were tested, with 6 repeats at each. The first measurement was discarded and the mean of the following 5 measurements was recorded in the table. The temperature, light intensity and humidity were monitored 10 times during each measurement of water uptake and their mean values recorded in the table.
(g) Use the image of a transverse sed+crxhq4d- muc go72rdk 1ouwy s6(*2ction of a dicotyledonous leaf to explain why transpiration is an inevitable consequence of gaseou2d24wy- *c dqxhod g rrck7suu6+1(mos exchange in a leaf.
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11#
 
问答题 ( 1.0 分) (组内1/2) 切至整卷模式 搜藏此题  
第 3 题组 (共 2 题 2 分)
5. The lung is involved in the exchange of gases with the environw4pqwra)o0 : qpj 832xettl x/ment Explain three adaptations of the lung that make the proxjx l28ptqt /r 4w:3wpoa 0)eqcess of gaseous exchange efficient.
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12#
 
问答题 ( 1.0 分) (组内2/2) 切至整卷模式 搜藏此题  
6. Discuss the changes in affinity of haemoglobin for oxygen when it moves m j5iz3g.n. chsv -4f47ffyxqinto rapidly re-5s47 xf.3c.q i yvjfgfznm4h spiring tissues.
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本习题练习题目来源于无忧得胜-网上国际课程 (https://5edu.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
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