Which reaction converts monosacch mr98euw)n a,r /hxr;earides into disaccharides?

  1.State the reaction that forms disaccharides from mono4 v/q ao2qk.ygfopi-1g.7in)x a6c hnsaccharides.
   OR dehydration synthesis

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

  What is the substrate for the enzyme lactaseaa6g g;i bknt 5idk x8)nw5:,e?

  Biomolecules have divers ,l)n ksaom-3ba6e r/qe forms and structures. Which of the following statements is false3 bkm nsloer,aa/q)6- ?

  A disaccharide is formed by a cod 87r q,kdg: cytm *-1 5zdk2dr0 be2hy9fmnhhndensation reaction between a glucose molecule and a fructose molecule. Which dkn0k8b d*r7-g 2zd9,21yrfqhecht m y:dhm 5molecule fits this description?

  What bond is formed between two ga w/pxs7jc (;r*s h2xmlucose molecules to form maltose?

  What is the product of this reaction? k btgvw9 p+:4hc;h- 3 b 4xov 2xen5ijib).isu

  Which of the following is a sy40cw1 ppa ,zfmakn*3teroid?

  Which row in the table below correctly identifies the the constituents of the nabqc.(c 7.vb avmed macromolec. 7q.bb ccvav(ules?

  The diagram below showsost mfa:l, ,8m the structure of 2 different monomers.



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 breaki vo2/gh7-r).lam amtixk* 5k jng down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen is/are co1 gfolw9g ,ufu:hpk2 9rrect?
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 celwnk bt ,sz(j6yv0u5weyv.3jo5 5t y9sl by binding to ab. jy uvszwtjvn95ysy(,oke5 0 3 5tw6 receptor in the plasma membrane?

The micrograph shows a part of a plant cell from the leaf of Aneu ,.bev5sc n.jlx( /csmone 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 corrps hgm7s95wa*h9k ryx km*)h3ectly matched to the name?

  Eating a healthy, balanced diet is important in order to maintain overall heal/w(zu7zlr we- v;ee+jth and a strong immune system. A healthy diet means eating a wide variety of food whilst limiting the consumption of 7zeew/z+ je(v -lr;wufoods 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 a trqos ywjg50gd/k n , xpq2b/siokbe eh5,406s4iglyceride?

Distinguish between the structure of ce hds/vv +p7vjg)ag,eccn 821i llulose, starch and glycogen.

  Which molecule is shown i soqlh(7*brg:1i1+ zxv+ghbvn the diagram below?

  Which monosaccharides are matched to incorrect disaccharik u+cds:ci r:6des?

  Which of the following is the correct compos,-pa :,m a dge1;ayaxl (y7i jw4--dpgwo iw.yition of the named polysaccharide?

  Which of the following statements describes alpha-Linolenate, m+tv* x)d7,q5ktmw zmas depicted in the diagram below? ttk+ m )dz,vxwm5*qm7

Molecules used in metabolism can be classified as careg7 x4*9wbvjjqdab t(l jm q6-x5y .9qbohydrates, lipids, and proteins. These molecules are often broken down into simpler units which are then involved in difflx47ajex. 5*-w t6b9qvbjy (9qgjqdmerent 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 anyr4mob -w 2c6um*od(pu/a, v i example of a saturated fatty acid with a 16 carbon chain. Draw the */(mb,w vuucoiy4o -d6ar mp2structure of a palmitic 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.