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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: 匿名未登录  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 apply to gaseous exchange in a leaf and kkzyp,b fha5( jo*;g 1in 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 correct u;orytup39nc)8( rv-:oayk t0of9tfly match the main functions of the tissues found ink)a:tp o8 ;ro-0n ryttyuf3f9o (9vuc a transverse section 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 atp66 ou)j7szbrv n2 jf* 2j,wkre adaptations of the spongy mesophyll for the intake of carbon dioxide to photos*z,s urj7o)6tjfnv2b jwp26 kynthetic 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 
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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 this investigati v0 r:a4njm8 i63tqjehon.
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 4pvogh6ah6gu 46 yz3- 4zmcl cvariable in this investigation. Explain why the light intensity should be contro c 6- 4gzhz6643cmhvaoylu4gplled.
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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 measurement in each condition was //p3d bkkgatv 3q:x :adiscarded from the calculation of the mean ratek3:xgqdp: a3a/ vk/tb of water uptake for each condition.
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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 increase in water uptake between experiment 9a :ef4xs7fol1 and 3.7lf f4ae9x:os
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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 in water uptake between trials 2 and 3.hrq5 zkq611g7fla1x *jo :rux
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 the lower epidermis of one l6+f:7csixne p eaf of the stem used in the investigation and a m+7en pc6f :ixsicrometer. Both images are taken using the same magnification of 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 sectbdup8v g;-*/dms 7p jmion of a dicotyledonous leaf to explain why tram v7*d -;8mubpgjs/pdnspiration is an inevitable consequence of gaseous 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 environment Explyo30;97/kj vbtjfr-z fy:arn+:ju d kain three adaptations of the lung that make the process or j90u k oz:yvf: k-yjt;n3fab jr+7/df 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 oxyge +t1debe ( ma4w/cel.gn when it moves into rapidly respiring tissue /.dwe+e4 ltm( 1agcebs.
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