SL Topic B1.1 Carbohydrates and lipids - 无忧得胜-网上国际课程 (5edu.win)

1#

第 1 题组 (共 4 题 4 分)

1. Carbon is the basis p7i1 ly wu/hgf+*.rycz88mqw of biological polymers because:
I It can form chains by bonding to other carbon atoms.
II It is found in carbohydrates.
III It can form four covalent bonds.
IV It can form branched and ring structures.

A. I only

B. I and II only

C. I, III and IV only

D. I and III 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 is the beck(6zmvg 4; zwst description of the formation of a triglyceride frg z ;6v(4cmwkzom glycerol
and 3 fatty acids?

A. Hydrolysis

B. Condensation.

C. Lysis.

D. Catabolism.

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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. Which type of structure are the ABO antigens that define huma-bpy1jjv.4g .r ffc*qn blood groups?

A. Glycoprotein.

B. Phospholipid.

C. Fatty acid.

D. Glycophosphate.

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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. Which of the following terms would be appropriate in describing the molecule o8xba*aiib43 illustrated?3a*iaoi x4bb 8
I. Hexose.
II. Polysaccharide.
III. Glucose.
IV. Pentose.

A. All of the above.

B. I and III only.

C. III and IV only.

D. I, II and III only.

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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 chart and graph below show the results of an experiment where carbon dioxide evolution of a suspension of Brewer’s yeast (Saccharomyces cerevisiae) was measured. The yeast was grown several times, using different carbohydrate sources.
• 1g of the yeast was placed in a conical flask and
• 50cm3 of a 1% solution of the carbohydrate solution was added.
• The flask was fitted to a gas syringe to collect the carbon dioxide produced.

a. Suggest one variable that should be controlled other than those given in tha9 hcf5q12dh be quqb91fcad 2hh5 estion.

该题自我估分: (必填) (满分:1.0分)

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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 chart and graph below show the results of an experiment where carbon dioxide evolution of a suspension of Brewer’s yeast (Saccharomyces cerevisiae) was measured. The yeast was grown several times, using different carbohydrate sources.
• 1g of the yeast was placed in a conical flask and
• 50cm3 of a 1% solution of the carbohydrate solution was added.
• The flask was fitted to a gas syringe to collect the carbon dioxide produced.

b. What types of carbohydrate were used as t h d(zs8ex2a;sf +/vbr7o;smhwn*0 v the nutrient source?

该题自我估分: (必填) (满分:1.0分)

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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

题组内容描述:
5. The chart and graph below show the results of an experiment where carbon dioxide evolution of a suspension of Brewer’s yeast (Saccharomyces cerevisiae) was measured. The yeast was grown several times, using different carbohydrate sources.
• 1g of the yeast was placed in a conical flask and
• 50cm3 of a 1% solution of the carbohydrate solution was added.
• The flask was fitted to a gas syringe to collect the carbon dioxide produced.

c. Explain the shape ofq5roag kt8c90 the curve for the use of glucose as a respiratory substrat5og ac98r qkt0e.

该题自我估分: (必填) (满分:1.0分)

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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

题组内容描述:
5. The chart and graph below show the results of an experiment where carbon dioxide evolution of a suspension of Brewer’s yeast (Saccharomyces cerevisiae) was measured. The yeast was grown several times, using different carbohydrate sources.
• 1g of the yeast was placed in a conical flask and
• 50cm3 of a 1% solution of the carbohydrate solution was added.
• The flask was fitted to a gas syringe to collect the carbon dioxide produced.

d. Describe the diff bz cr, :/cyoo5+dn,lw,c rf*nerences between the results for glucose and starch.

该题自我估分: (必填) (满分:1.0分)

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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 chart and graph below show the results of an experiment where carbon dioxide evolution of a suspension of Brewer’s yeast (Saccharomyces cerevisiae) was measured. The yeast was grown several times, using different carbohydrate sources.
• 1g of the yeast was placed in a conical flask and
• 50cm3 of a 1% solution of the carbohydrate solution was added.
• The flask was fitted to a gas syringe to collect the carbon dioxide produced.

e. After 60 minutes yeast producedu2mo4 1zls8ua 44 cm3 of CO2. What percentage of this volume did the yeast produce after 60 minutes ulmau8 4z u2so1sing sucrose? (Show your working)

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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 chart and graph below show the results of an experiment where carbon dioxide evolution of a suspension of Brewer’s yeast (Saccharomyces cerevisiae) was measured. The yeast was grown several times, using different carbohydrate sources.
• 1g of the yeast was placed in a conical flask and
• 50cm3 of a 1% solution of the carbohydrate solution was added.
• The flask was fitted to a gas syringe to collect the carbon dioxide produced.

f. Which trial was a control experiment and why was it necessa tc57g,d2a pf(o uca4zry?

该题自我估分: (必填) (满分:1.0分)

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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. Compare and contrast the use of lipids and carbohydrates as energy stop6le 1bsya5 w8 -(vwyyring materials in plants awbyes -ly(5w6 v18apynd animals.

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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. Outline the differ2 s4tx/c5x vuvs l7b53tbpb7yences between the structure of saturated, monounsaturated andpol2s xtb s7tvulvy x4553b/bc 7pyunsaturated fatty acids?

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