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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 follo35:v(hprki jgwing apply 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 matchh3q ,yf1 qigskr 3a-)s the main functions of the tissues found in a transverse section of13,k sfyqi) g3sarq-h 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 adaptations of the sponclb 98dsdfi2;- cz*jkgy mesophyll for the intake of carbon dioxid lk;c c-298dfibszj* de to 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 this inve2jyo gtg h,t-,stigation.
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 in this investigl uf*z/*6ll) idde5wy ation. Explain why the light intensity should be coe6* u *izyfll5dl/dw)ntrolled.
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 measurement in each condit: 8d1f.pk4 cnlbp/mqp ion was discarded from the calculation of the mean rate of water updkpcq b.m4 :n1ppl/8 ftake 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 i9h eveati *fdr 3(s64increase in water uptake between experiment 1 and 3ti6 4 ees9(va*i3hdr f.
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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 increacxej2+4sido :se in water uptake between trials 2 and 3.
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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 t 2 w(f8bu7 uo,zes-9ivohh0g) g48vhczd6ai hhe lower epidermis of one leaf of the stem used in the investigation and a micrometer. Both images are taken using the same magnifa6d 4uhogg w8zhi,sh 7e)-z o(v8v2ubc0 if h9ication 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 transversb ao*a w5:pao5e section of a dicotyledonous leaf to explain why transpiration is an inevitable consequence of gaseous exchange in a*wa o:ap 5abo5 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 4 gjq4 u7pd :lc7vamjv.pp;mm2- ,uqeExplain three adaptations of the lung that make tqp7g;mdc.u 7ejla2p4p uv ,m-:jq4v mhe process 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 mog,7 ga5jhr,nwves into rap5ggj7h,,wr anidly respiring tissues.
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