SL/HL Topic B2.3 Cell specialisation - 无忧得胜-网上国际课程 (5edu.win)

?作业考试练习?IB生物学?SL/HL Topic B2.3 Cell specialisation

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习题练习：SL/HL Topic B2.3 Cell specialisation

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作者: admin 发布日期: 2025-01-26 18:21 总分: 15分得分: _____________

答题人: 游客未登录开始时间: 25年01月26日 18:16 切换到: 整卷模式

1#

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第 1 题组 (共 4 题 4 分)

1. Which of the following are roles of stem cel76r4nx(c 7 wr(-lfbfgtupvp/0 kv a5ils in living organisms?
I. Growth of new organs.
II. Replacement of damaged cells.
III. Production of cells which could differentiate.
IV. Produce new stem cells by mitosis.

A. All of the above.

B. I,II and III only.

C. II and IV only.

D. II, III and IV only.

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2#

单选题 ( 1.0 分) (组内2/4) 切至整卷模式搜藏此题

2. Which of the following correctly describe the differentiated cells i.h2 qgqcc)4sx v2mpm y,aw3:e n an individual )ahxepgwsq cy,m.c2: 34 v2mqplant such as the golden barrel cactusbarrel (Echinocactus grusonii) shown in the image?

A. There are different organelles in different differentiated cells.

B. There are different genes in each type of differentiated cells.

C. The differentiated cells have identical genes in every cell type.

D. The differentiated cells produce the same proteins in every cell type.

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3#

单选题 ( 1.0 分) (组内3/4) 切至整卷模式搜藏此题

3. What are essential properties of stem celoxb7 :gamh; ;els?

A. They are specialised and can divide by meiosis.

B. They are specialised can divide by mitosis.

C. They can divide by mitosis and differentiate.

D. They can divide by meiosis and differentiate.

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4#

单选题 ( 1.0 分) (组内4/4) 切至整卷模式搜藏此题

4. What is the causem /yl6joh 3dysc7 d6k, of stem cells differentiating along different pathways to produce a variety of differenkd /j6l6 7d,yohycs3 mtiated cells?

A. The genome of the cells is different.

B. The differentiated cells produce the same proteins.

C. Gene expression varies between different kinds of differentiated cells.

D. Gene expression varies within identical cell types.

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5#

问答题 ( 1.0 分) (组内1/6) 切至整卷模式搜藏此题

第 2 题组 (共 6 题 6 分) 当前第1/6题

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5. The graph shows the relationship between mean cell length and an estimate of cell volume for 6 cell types found in humans.

Cell type in order of length as shown in the graph:

a. Use the graph to estim/, rqncoprfn)f7hcv-f b9 kp /5d5u*eate the volume of a liver cell.

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6#

问答题 ( 1.0 分) (组内2/6) 切至整卷模式搜藏此题

第 2 题组 (共 6 题 6 分) 当前第2/6题

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5. The graph shows the relationship between mean cell length and an estimate of cell volume for 6 cell types found in humans.

Cell type in order of length as shown in the graph:

b. The image is of cardiac (tcyd-( 9ib63udxr )h:bfg0b:lb q zvmuscle.

Cardiac muscle cells have a mean length of 100 µm and an estimated volume of 8000 µm3.
Explain why the cell length and volume ratios are not constant for all cell types.

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7#

问答题 ( 1.0 分) (组内3/6) 切至整卷模式搜藏此题

第 2 题组 (共 6 题 6 分) 当前第3/6题

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5. The graph shows the relationship between mean cell length and an estimate of cell volume for 6 cell types found in humans.

Cell type in order of length as shown in the graph:

c. Suggest one reason why a human ovum 12lv urggv 2b9sn(55blrenhkbza+.)has specialized to have a large volume.

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8#

问答题 ( 1.0 分) (组内4/6) 切至整卷模式搜藏此题

第 2 题组 (共 6 题 6 分) 当前第4/6题

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5. The graph shows the relationship between mean cell length and an estimate of cell volume for 6 cell types found in humans.

Cell type in order of length as shown in the graph:

d. Estimate the mean length of a cell with a volume of*d/ndvd 21d3f 0 ca t4iuq :ere+xi.xh 1000 µm3 using the trend line on td. av xdcx/hdqu*4ie d2i +1nf :t3er0he graph.

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9#

问答题 ( 1.0 分) (组内5/6) 切至整卷模式搜藏此题

第 2 题组 (共 6 题 6 分) 当前第5/6题

题组内容描述:
5. The graph shows the relationship between mean cell length and an estimate of cell volume for 6 cell types found in humans.

Cell type in order of length as shown in the graph:

e. The horizontal error bars ra6 c3123vjf4tckybjvg j /f )yepresent standard deviation. Suggest what the standard deviatagjvc k)4 v fc/j36ft 3b1yy2jion signifies.

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10#

问答题 ( 1.0 分) (组内6/6) 切至整卷模式搜藏此题

第 2 题组 (共 6 题 6 分) 当前第6/6题

题组内容描述:
5. The graph shows the relationship between mean cell length and an estimate of cell volume for 6 cell types found in humans.

Cell type in order of length as shown in the graph:

f. Simplified models are commonly used to investigate +n.zyrgmjj; -scientific phenomena.
Outline the limitations in the use of a sphere to model surface area to volume ratio in cells.

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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)

6. Using examples from human tissueskj y;3 pbd n1sm3;.eof, distinguish between pluripotent, totipotent and multipotent stem cells 1e.3fj;ys pnb;dk o3m.

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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

7. Explain the role of stem cells in a multicelt3d bkfrzby8s *14v z0cd .hrb5p11jz lular organism.

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13#

问答题 ( 1.0 分) (组内1/3) 切至整卷模式搜藏此题

第 4 题组 (共 3 题 3 分) 当前第1/3题

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8. A cell can be modelled on a sphere. Increasing cell size decreases the surface area to volume ratio for a sphere in the following manner (figures to 1 decimal place):

(a) Explain why a large surface area to volume ratios ie.:be 7/nct can increase cell efficiency/:. set7b neci.

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14#

问答题 ( 1.0 分) (组内2/3) 切至整卷模式搜藏此题

第 4 题组 (共 3 题 3 分) 当前第2/3题

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8. A cell can be modelled on a sphere. Increasing cell size decreases the surface area to volume ratio for a sphere in the following manner (figures to 1 decimal place):

(b) Describe, using two specific examples, how cell adaptation can increaevke f7l6 s6m0b,0cg jse surface area to volume ratio in a specialisedk07v cs,f e0jlmb6 e6g cell.

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15#

问答题 ( 1.0 分) (组内3/3) 切至整卷模式搜藏此题

第 4 题组 (共 3 题 3 分) 当前第3/3题

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8. A cell can be modelled on a sphere. Increasing cell size decreases the surface area to volume ratio for a sphere in the following manner (figures to 1 decimal place):

(c) Many tissues found in plants are compound tissues, such as phloem tissum8 l ck0sdv-t3e shown in the image. Phloem tissue transports organic nutrients from their site of production (often, the leaf) to sites of storage or metabov08 dm-ctlk s3lism (often flowers or roots)

Compound tissues consist of several different cell types, simple tissues of only one cell type.
Outline why many tissues in multicellular organisms have more than one cell type in the tissue

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