Which reaction converts monosaccharides into disaccpfw,- *y1wnuf harides?

  1.State the reaction that forms disaccharides from mo ekie7ljr3m1:x)b,oju + o3 yrlz24sgnosaccharides.
   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 enzyw lcdgw2kxh: 301tdk :me lactase?

  Biomolecules have diverse forms and structure g)x+ 46nfy4pggsih+cs. Which of the following statements i g +gn 44pysxfgh6ci)+s false?

  A disaccharide is foh8p3bap5b t n2rmed by a condensation reaction between a glucose molecule and a fructose bh5pb82n3pta molecule. Which molecule fits this description?

  What bond is formed between two glucose molecz 3d tnrfwc-yic*+g 2r pw3,6bules to form maltose?

  What is the product of thi c5)m7 d0peixfs reaction?

  Which of the followingtzuh9j1xx,)5 oxur l* is a steroid?

  Which row in the table below correctly identifies the the c lzhgxt/ b tsnjq+.; *8y3d9(k9oeiukonstituents of the named macromolebx/ njt9*ky9ulqgsdh z+8.3ok; e t( icules?

  The diagram below showwtr e-x.( 8c*,nnd yqjs the structure of 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 8:ii5p4:l7g5 vjtzec rik.cz down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen is/jm d3 j tu36atwxc:.:care 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 tw;. zua ,nu7i1/e irexrigger a response in a cell by binding to a receptor in the,u17e/x ;za .ew iniru plasma membrane?

The micrograph shows a part of a plant cell w0*rm*:zk:onfy/k g (8nwhek 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 matche7fe* xm8uu ph/d to the name?

  Eating a healthy, balanced diet is imporm)gd:(f9vo rr tant in order to maintain overall 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 be f9vr:)gdr(m oless 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 ymi c .med7h9.a triglyceride?

Distinguish between the structure of cellulose, starch and glycogen.tts.tf1bgyy;v sl *) +

  Which molecule is shown in the diagram-sm,c1yh- -qp gclse7 below?

  Which monosaccharides are matched to incorwv6r)dle /zbalij * ,/rect disaccharides?

  Which of the following is the correct composition of the named polysah k)1rksdse5(ccharide?

  Which of the following statements describes alpha-Linolenate, as hxc+45g6 kbsf- 2qfjv.m hf l4depicted in the diagram -f 4hvklmfjq 526h+bcg 4f.sx below?

Molecules used in metabolism can be clu bw *5e6mgkm76 vc+(e5 iugvrma8zy) assified as carbohydrates, lipids, and proteins. These molecules are often brokea+ ge)6 ugi7kv6 rm uz55ebcv*m(8ywmn 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 satura+y1jleu q6w 9nd,e; wkted fatty acid with a 16 carbon chain. Drq,wk yewn ;1e6uj l+d9aw the structure 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.