Which reaction converts monosaccharibx;yu8e+lk50l1 k7q5q1 eszdei lx9jdes into disaccharides?

  1.State the reaction that forms disaccharides from mon2 8difron+*r nosaccharides.
   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 lacta7 6 bkz2,ay )ndqxqan0se?

  Biomolecules have diverse forms and structures. Which of the followin -05.p3x fp,5+ vzbi evmcvteug statements is false?u0 ,tv ei5pzpbf 5v.cvx3m+e-

  A disaccharide is formed by a condensation 61db:rxshiobe 3/ng / reaction between a glucose molecule and a fructose molecule. Which molecule fits this descriptioh3s/r /1on6ibbd:eg x n?

  What bond is formed betwei+ 8fhhq *q;jzen two glucose molecules to form maltose?

  What is the product of this reactios- (xds30z o5rpijgb63 hk0) pihg;bgn?

  Which of the followinob t 16 rtvsko)t4g4 r4ae*d)qg is a steroid?

  Which row in the table below correctly identifies the the conlr/ov /q*ip .hra n,i3stituents of the namr na, /v/q3l or.*iihped macromolecules?

  The diagram below shows the structure o)qfad 5a)/q tlhtw2x xdtz- l3,,vi(jf 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 breaking down of fw.oj3 2 n7p2uz 0rdkxa polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen is/are corrp*e bpun7a5y3j . ex,gect?
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 triggengdo,0u 6w5pb2 h jh7cr a response in a cell by binding to a receptor in the plasma membrann,o7wbh5jh02d 6 pcgue?

The micrograph shows a part of a plant cell d;ya: t 8m 6hxpvsvb4)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 matche7( vv);kzhdx+pfdq 8x/ x7e fnd to the name?

  Eating a healthy, balanced diet :e5s 9f+clerhis important in order to maintain overall health and a strong immune system. A he:e+lfh rce5s 9althy 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 a tqxu c-p xc,3:wriglyceride?

Distinguish between the stru6 6 +dlf-usjwft8xo, m8 6bbhdcture of cellulose, starch and glycogen.

  Which molecule is shown in the diagpr- h2 v6 ( ul:atevag,mn*q3uram below?

  Which monosaccharidesv;.q/b3 gp+p qr oyfx+*. fgou are matched to incorrect disaccharides?

  Which of the following is the correct co6x k:h*f6g: bozu)y a*a cxq3ymposition of the named polysaccharide?

  Which of the following statements describes alpha-Linolenakbaes1)+o5 hb1*v yskte, as depicted in the diagr1)akbbh* v k15s oes+yam below?

Molecules used in metabolism c5u5+qkf-mm55y qfmbno4s7 ican be classified as carbohydrates, lipids, and proteins. These molecules are often broken down into simpler units which are then involvnqo c-mu f+ sm5m475 fi5b5yqked in 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 with a 16 carbuv) ;vsz xzqk- .rp ayy33ux+)on chain. Draw the structure);zuy3xkv 3 +zpryxqv u-s.)a 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.