Which reaction converts monosaccharidej;p:v wg9 y-eyl4tvh/s into disaccharides?

  1.State the reaction that forms disaccharides from monosaccharil,mp/f*3nyk w des.
   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 env )du7djk1s*/ e c,nnhzyme lactase?

  Biomolecules have diverse forms and strg-f)w-u/5c moh jw:sn uctures. Which of the following statements i )mgscj:-fn5o wuw -h/s false?

  A disaccharide is formed by a condenc mu7y :/xaqt0sation reaction between a glucose molecule and a fructose molecule. Which molecule fits this description?x7amtuy/0:q c

  What bond is formed between two glucose m wo4bc ,0,satdolecules to form maltose?

  What is the product of this gx-)d0n6oiw26ybb lp reaction?

  Which of the followinns8ai a2iwys21cm;7w g is a steroid?

  Which row in the table below correctly ide 2e- y2e1zs;9mdski ;uw ljop.ntifies the the constituents of the named macromoleculo2;szpe wjl.- esim91uk2y; des?

  The diagram below shows the structure of 2 different monomere+qzjk 5 ,k7pqs.



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 of7sv)0 :b )yj3fnx bro+j k6snb a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen is/are co3s ff.1na/-ogx2*zp x1.)g rjkm puevrrect?
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 triggefb, qj n8v7mt+v5yc:fxb n8 3br a response in a cell by binding to a receptor in the plasma bc 35f, :b +nvyt8jnxfqvm7b8membrane?

The micrograph shows a 1 0hb:fa ggn4spart of a plant 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 toggr02.a9i ql6 za3 wmo the name?

  Eating a healthy, balanced diet is important in order to maintain oveu (zsnsp1;gxdu4z p 31rall health and a strong immune system. A healthy diet means eating a wide variety of food whilst limiting the consumption of foods which are considered to b p x(1zgspn1uu34dzs ;e 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 triglyceric; 9 q19qf2w6qr4xtnlqrro. cde?

Distinguish between the structure of cellulose, starch andd*t 1bo3xinvoh6i 7 l+ glycogen.

  Which molecule is shown in tt9he u :(st-(d:m2vzf vbrwyw .kl*9zhe diagram below?

  Which monosaccharides are matched to incorrect disacchariduogjojo2 p m s:*+ p08wphk, 0z(*pce2kddn;kes?

  Which of the following is the correct composition of the named 4hd8kur 728 ellx :bpopolysaccharide?

  Which of the following statements describes alpha-me(p9tv* 0v-s vvz96 xv4*wzh g3nldb Linolenate, as depicted in the diagram6-(levvzvx9nvgz9 b4dt s 3m*vw 0*p h below?

Molecules used in metabp4b 4 llkm1cuzsg/)0 lolism can be classified as carbohydrates, lipids, and proteins. These molecu ) lk1lbz4gps0/ uml4cles are often broken down into simpler units which are then involved 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 saturatxa zn pul(( tcfp,.55fed fatty acid with a 16 carbon chain. Draw the structure of a palmitic . ,u5fntp(xlzc5af(p 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.