Which reaction converts monosaccharide mh4xn0b j-k0js into disaccharides?

  1.State the reaction that formswk) fv*v4bfq; disaccharides from monosaccharides.
   OR dehydration synthesis

2.Draw the products of the reaction between the two monosaccharides shown in the diagram below.

  What is the substrate7u 9m7:tlx g+wi 2lrvhusfkhk63d+) p for the enzyme lactase?

  Biomolecules have diverse forms and structures. Which of the -s4 lrao,kt1i;lsu6kfollowing statements is false?r1lk i6tu-a ,sol4 sk;

  A disaccharide is formed by a condensation reactiopu.i2a(fef8l *a + tmf7* iewyn between a glucose molecule andtm u 7ay8 filee(pwf a.fi*2+* a fructose molecule. Which molecule fits this description?

  What bond is formed between two glucose m/(3gpn2 tslorku80 d dolecules to form maltose?

  What is the product of this reactiucewn;u2y5 r3)e1q.qd4 otc8 7 pqsa ron?

  Which of the followinf*7 v5/ zaq 1+tdciqvlas- a7qg is a steroid?

  Which row in the table below correctly identifies the the c,2i k*(m/69kzjmtfy 3t d icmkonstituents of the named macromolecules kjt, c3* k(9mz /6ftmd2yikmi?

  The diagram below shows the structure of 2 different monome7.ncqe2v e;x4lm uly w-;bnoy1un7z9 rs.



1.State the name of the following:

1.1.structure A:α-  
1.2.structure B:  

2.State the name of a polymer which contains the following molecules:

2.1.structure A:starch OR glycogen OR amylose OR amylopectin
2.2.structure B:ribonucleic acid OR   

1.Distinguish between the formation and breakingkkr 6i k;cgd 0/n+(bxc down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen is/are correct? +3mupg *ua)he *2oskrut+ vi,
I. Starch and glycogen are branched molecules.
II. Starch is made up β− glucose molecules but glycogen is made up of α− glucose molecules.
III. Starch and glycogen are energy storing polysaccharides.

  Which of the following is only able to trigger a response in a cell by binimm.*jd* vson(l 9v*mr glf, 5ding to a receptor . * *, (olmnrjvg9mdil5mf* svin the plasma membrane?

The micrograph shows a part of a plan4z16u 7giyin3, fj3)vli )c deip1bmdt cell from the leaf of Anemone sp.


1.Label structures in the plant cell above:

1.1.using the letter R where starch can be found;
1.2.using the letter S where lipids can be found;
1.3.using the letter T where cellulose can be found.

2.Compare and contrast between the structure and functions of glycogen and starch.

  Which molecule diagram is correctly matched to:kb oq3s; r;rvboil5e v-z 91t the name?

  Eating a healthy, balanced diet is important in order to maintain overallzj9 7w ;e 7t)vlfu8p*0xegwvr health and a strong 7v7*0 )uwfe8gzvtle;p 9rxwjimmune system. A healthy diet means eating a wide variety of food whilst limiting the consumption of foods which are considered to be less healthy, such as those high in saturated fats.

In an investigation into the effects of diet on low-density lipoprotein levels (LDL) in the blood, scientists provided two groups of mice with varied diets. Each group was given 5g of food per day, containing a mixture of a standard food mix and either avocado or cheese. The ratios of the food were changed each day and blood LDL levels were recorded. The diets and results are shown in the tables and graph.



1.1.Describe the impact on blood LDL levels when feeding mice diets supplemented with avocado or cheese.

1.2.Explain the differences between results from both groups.

1.3.Suggest a reason for the trend shown in LDL levels in group one.

2.State which group is most at risk of heart disease and stroke. Give a reason for your answer.

3.1.Suggest one advantage of using mice in this experiment instead of humans.

3.2.State one variable, not mentioned in the question, which would need to be controlled in this experiment in order to achieve valid results.

4.For mice fed with cheese, calculate how many times greater the LDL levels were on day 5 compared to day 2.
Day 2 =  

  Which molecules form at jpd*ua43vqqio5- 1xy 0zda)t l 4/ew triglyceride?

Distinguish between the stmptq3x*ojd0-k6 snbma ar-,gql i-z oc -b/6;ructure of cellulose, starch and glycogen.

  Which molecule is shown in the diageg9(6yoq )mpb, pd5u zram below?

  Which monosaccharides are matched to incorrect disaccharid2h+ qb- -q7sz vw(9,fiuyaetyv0gsg :es?

  Which of the following is the correct composition of the namedwj,*exha/wdiio c0 w8 r 4;;be polysaccharide?

  Which of the following statements describes alpha-Linolenate, as depi - zxb.v.bxu6+rc4t qy(gm 4wacted in the.tb +gr cw(.avxu 4xyb4 q-6zm diagram below?

Molecules used in metabolism can be classifi o*2ta;wl9( s6:f uh6lp figdwed as carbohydrates, lipids, and proteins. These molecules are often broken down into simpler units which are then involved ;i 6stwgaw l:l( uofdhp*9f62in different metabolic reactions.

1.Identify two disaccharides and the monomers from which they are formed.

2.Draw a labeled molecular diagram to show a generalized amino acid.

3.Discuss the theory of vitalism and its falsification.

1.Palmitic acid is an example of a saturated fatty acid wio.ui (sl/n)yh in;mchq0,6 erth a 16 carbon chain. Draw the structure of a palmiti y,6c inh;n)e(.hulq /mis0 roc acid.

2.Testosterone is a steroid hormone, which is carried in the blood. Explain how, when testosterone reaches its target cells, it brings about its effect on the DNA of that cell.

3.Explain how the structure of cellulose and glycogen are related to their functions.