Which reaction converts monosa+z:ampzs (- lcv,zf s5ccharides into disaccharides?

  1.State the reaction that for3gsbm kq/: sx+ms 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 substrate for the enzyme lactase? 6hx.oayuu6qjyj93f+

  Biomolecules have diverse forms and structures. Whiuhaphic rm5 -)q ; 4yucf8/wt/ch of the following statements isrwp-fui;cqym c/5/ )t8ua4hh false?

  A disaccharide is formed by a condensation reaction between a g0svsi; mixjx4dou9/sk1i ) v1 lucose molecule and a fructose molecule. Which molecule fits this description? s/o 0v9k)sdv 1x;xusim4 i1ji

  What bond is formed between two glucose mo/s9z wv ame:,klecules to form maltose?

  What is the product of 0; (zf izzznbb nh60n6this reaction?

  Which of the following is a sw2ucc9 3y*utz teroid?

  Which row in the table beo1 dujfohm+6(c 9 m7xulow correctly identifies the the constituents of the named m 9fum oc+7hj u6om1xd(acromolecules?

  The diagram below shows the structure of 2 different mlg 0gt1z-fyj2onomers.



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 a po faersx;s)s 4lo1l/ro)2 dbyykyv1h +. hs c,.lymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen is/are cogn2 /qjsd 7k i+) rre8*nkmn.brrect?
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 a) nqujir-zo,o z7ej42ble to trigger a response in a cell by binding to a receptor in the q4u j) o jrzz72,ioen-plasma membrane?

The micrograph shows a part of a plant cell from the leaf of Anxnenoq9*m8n ey*it.,b yzs/, emone 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 diagrame 6tv2cnt 7mlm(g f- l4aldy:4 is correctly matched to the name?

  Eating a healthy, balanced diet is importana;vyx.0x2a1f v ke tb2t in order to maintain overall health and a strong immune system. A healthy diet means eating a wide variety of foodk a bafyexx1t2v.;20v 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) yxe qsn d 4z/91h:8dkgtyv(5l lz+wi triglyceride?

Distinguish between the structure of cellulose, starch and glycodem 4w;gpk79txxa9r) gen.

  Which molecule is shown in the diagram zn ;n bav*+n(z,ezs+u below?

  Which monosaccharides are matched to incorrect disacchav(ywsj9 9c+ptrides?

  Which of the following is the correct composition of the nameux 3 gvx9rsr54d polysaccharide?

  Which of the following state ge((ccrk4,-mi n paurm*22dnments describes alpha-Linolenate, as depicted in the diagram b,4( 2*g pmducmcn (rn eik-2raelow?

Molecules used in metabolism can be classiflz. n,(1tae 2 bq(qri9gl -wzried as carbohydrates, lipids, and proteins. These molecules are often broken down into simpler units which are then involved in dif9,g z. lrnt b2lri (e1(qazwq-ferent 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 az,w5fc q8 .slgcid with a 16 carbon chain. Draw the structure of a palmit.f5scw,z 8 qglic 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.