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 of biological polyiqk 8uw*:n.j 6c)h:xnspe d c8mers 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 best dj7 *nq8bgl.y-c(nj5d.irar wescription of the formation of a triglyceride from glycry c(5.7jjn-ida lbg wr8.*qnerol
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 humvo:zgz hk )92tfld .t.an 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 *:cbbhiss3 g, be appropriate in describing the molecule ilhibb*,s3 gcs:lustrated?
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 shoul o sj.)g13b 1i4pxxmphtla 1q6d be controlled other than those given in the qu)a6p is11xtg1mq.l h3jx po 4bestion.

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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

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.

b. What types of carbohydrate were used as the 3hndj h(yu 88e3ye ke,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 of the curve foqtt,g8 .0n cfzr the use of glucose as a respiratory substratet,cnf 0z.tq8g .

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 differences between the thp4s pcdy76 ej55iu0 results for glucose and starch.

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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 produc ygjfb +bgv8(*p teb(1ed 44 cm3 of CO2. What percentage of this volume did the yeast produce after 60 minutes using sucrose? (Show your workvfb g(tgb ey8(p *+jb1ing)

该题自我估分: (必填) (满分:1.0分)

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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 yvg1fz:i- /;fnjkd d.it necessary?

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 contran/y 0wkh )so/pst the use of lipids and carbohydrates as energy storing materialsw sh/)p/y ko0n in plants and 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 differences b3ppi/ p a k0m6o1the q1u8alu8etween the structure of saturated, monounsaturated andpolyunsaturated fata 3hmq1il808/op u1k6t eppuaty acids?

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