Which reaction converts monosagl.nrlqq u*l p 2l:iyl53+w+l ccharides into disaccharides?

  1.State the reaction that forms disaccharid98 + v0nhbhscpes 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 lacta2arxqf0-g gg0se?

  Biomolecules have diverse forms and structures. Which r98tyehb +mo: i+ q0yta p2sj:of the following statements opth e:+ +mba80 yjy:r29qist is false?

  A disaccharide is formed by a condensatiuu uow3l; x0f6on reaction between a glucose molecule and a fructose molecule. Which moleculeuuwf u;x3lo06 fits this description?

  What bond is formed between two glucose molecules to form mapfbmq;rx14 ,fkn6 3xrltose?

  What is the product of this react9 (x.ac 1roiiqion?

  Which of the followin r :1dcccqhi,r r s1o; z/jjb7bqq6ibff0/0:n g is a steroid?

  Which row in the table below correctly identifies the thg rloeo.r :j/,e constituents of the namloo ,/rgej:r. ed macromolecules?

  The diagram below shows the structure of 2 different monomebz9 br :s(4vkurs.



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 -vcoia.77odwtmv ; 6s,i k0acthe formation and breaking down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glyzad k(v++qsesdv7ri,2k r q y/c0a/ a0cogen is/are correct?
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 cel45il: r +jch-q6o mr,htxip8/4nufzdl by binding to a receptor ipu im/t hifor:jldcrqn z +84-,h56x4n the plasma membrane?

The micrograph shows a part of a plan)tej6rrsfm.c+7.*o0wk w h kkt 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 the name? 0idliqq* 7jtqp n6-:x

  Eating a healthy, balanced diet is important ijs6g*jjyq + 1in order to maintain overall health and a strong immune system. A healthy diet means eatisjgj j16qi+y* ng 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 trig9 f wp:c us6-wmyzpg3+z/j sy1lyceride?

Distinguish between the structure ofzj3;ub ie;4h6dlt(,ru zxd5 w cellulose, starch and glycogen.

  Which molecule is shown in the diagrrw/:nh kbd 4q2de.c 6ham below?

  Which monosaccharides are matched to incorrect disa*6 vhq e5:(he1jtq dmfz l4xd/ccharides?

  Which of the following is the correct com+limib6e- 1c iposition of the named polysaccharide?

  Which of the following statements describes alpha-Linolenate, as depicted in th 1,ntdrk+vog 7e diagram o7ndgk1rt ,v+ below?

Molecules used in metabolism can be classified as carbohydrates, lipids, wq 8 xaca rpeavxj8;4fk8(,f5and proteins. These molecules are often broken down into simpler units which are then involved in different metax4, 8 fa;5cv 8qawjprex(kf8abolic 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 feafq:tch sds-8v 6)bxlg2 l11atty acid with a 16 carbon chain. Draw the structure of a palmc2x v8fab gt:e1h1qsd lls-6 )itic 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.