Which reaction converts monosaccharubs53i z4*fca6.gh p ogt;c y*ides into disaccharides?

  1.State the reaction that forms disaccharides from monosacchar3cgr - vwo9x:lides.
   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 lactasfpaqea- 4(7wgs, 8ncpael,q;e?

  Biomolecules have diverse forms and structures. Whi).n (utd v9qgxch of the following statementstd).nxq u(g 9v is false?

  A disaccharide is formed by a condensation reaction betweenfycug gf)xr6 gu1 h,)6fw4vg ( a glucose molecule and a fructose( x16ury)uhv6gwfffg,)cg4 g molecule. Which molecule fits this description?

  What bond is formed between two glucose moh m13l;*5i ez)(huf9kmy uva flecules to form maltose?

  What is the product o ,u/w1 u- (yd -viik(ycygil-wf this reaction?

  Which of the followihjtvs :q r5 aoy2d2m(3ng is a steroid?

  Which row in the table below correctly identifies the the ctlb n)1h fa 8bdpn an);skc57+onstituents of the named macromol dba np)t5n)8bk ;acnhsfl 17+ecules?

  The diagram below shows the structure o2 g xsmokg:rj97:xb yl*z/o ;sf 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 ahqke 3h i3-kc-nd breaking down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen is/a ikufr3u+7icd5 5ulg2re 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 bg/kozw*s, 6(mr(eue to trigger a response in a cell by binding to a receptor in the plas(/r wg(s,6ekz*emuo bma membrane?

The micrograph shows a part of a plant cell from the leaf of Anemone sp,p0u5i.e:fyg ht; r tf.


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 correctl/ty b9kid3f3 -p.scshs.e5 n sy matched to the name?

  Eating a healthy, balanced diet is important in orbg; bh;q*e3ezqwqb91der to maintain overall health and a strong immune syebqz *he3bb 19wgq;;qstem. A healthy 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 trigly4 r 4z fl c 6sjhqx)seoir:czn( -/;7vpu)ha0jceride?

Distinguish between the structure oe* ux-vrr el83f cellulose, starch and glycogen.

  Which molecule is shown in the dia)q)fl- )gk8slk v6h ehgram below?

  Which monosaccharides are matched to incorrect disam+v7tew3ph0qw - 29j/cto zcj ccharides?

  Which of the following is the correct composition of the z1.nd39e mgml named polysaccharide?

  Which of the following statements describes alpha-Linolenate, as depicte/)yu b*rx x:szd in thex/)bsy :uxzr* diagram below?

Molecules used in metabol46f6riays d ;gism can be classified as carbohydrates, lipids, and proteins. These molecules are often bd;yrs46 6 gafiroken 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 saturajg+msm,z-e. zted fatty acid with a 16 carbon chain. Draw the structure of a palmitiz.ze,ms+-j mgc 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.