SL/HL Topic B 3.1 Gas exchange - 题库网 (tiku.one)

1#

第 1 题组 (共 3 题 3 分)

1. Which of the follfaj0o; i: nikg9bzk a182c6 aiowing 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.

A. All of the above

B. IV only

C. I, II and III only

D. I, III and IV only

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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 func9;uf-hq3 anu7klk/9 )h wbxjitions of the tissues found i)kq -ilhuun/;kjhf9b73x9 w an a transverse section of a leaf?

A. B. C. D.

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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 ar+ i1,ol4a 1iknw2yc-1k:bid 5x/wr pd ,avlvhe adaptations of the spongy mesophyll for the intake of carbon dioxide to photosynthetic l,-y4hroapw a kvl+ kiwcn5:1, dd21/xb liv1 ieaf 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.

A. All of the above

B. II and IV only

C. I, II and III only

D. I, II and IV only

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4#

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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 investigam*3ki7w+gt8 0 mt/l:e2nodn :evztvbtion.
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

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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.

(b) Light intensity was a controlled vari k d0ecd qr4h0/65zdgsvqe7x:able in this investigation. Explain why the light intensity should b05e4gzeq/ hvqd6 7sd0:krc x de controlled.

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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

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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.

(c) Suggest why the first measurement in each conditionro ae2lt / 38ktplup/- was discarded from the calculation of the mean rate of water uptake for et8l ku3tpa -p /2eo/rlach 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

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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.

(d) Calculate the percentage increase in water uptake between experimeng a( b2z9yf c651gcnjpt 1 and 3.5f 6921gbjnzg ya ccp(

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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

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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.

(e) Explain the increase in water uptake between trikt ny/+mvo hr.c, -)rbals 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 the lower epidermis of on ,n7sgsexd lf6;) .xcce leaf of the stem used in the investigation and a micrometer. Both imagesdssgn fx 67x e.cl);,c 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 section of a dicotyledonous e.2l yq ,k;gzcabc +g.leaf to explain why transpiration is an inevitable consequencgc gq; a+cel 2zy.b,k.e 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. tq8egt *r),ive ds 6tz6ofm* environment Explain three adaptate6,vofdie6)qmrs. t8*t zt* g ions of the lung that make the 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 haemoglozx9 t )i..9yrg8f wgxmbin for oxygen when it moves into rapidly re)rx.g x89.mwz gifyt 9spiring tissues.

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