Which reaction converts monosaccharides into ;j 5wzd-ty s*sdisaccharides?

  1.State the reaction that f/0 +ryhz4dmnyorms 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 fmk 8* 0rd+d(ix;)a1jugntmz x or the enzyme lactase?

  Biomolecules have diverse forms and structures. Which of the following st ,n,(ngrh,xc v*vj,w hjr0x*v atements is false?,cvxnr wxh,j* ,(j ,g0v*rn hv

  A disaccharide is formed by a condensation reactif i;ux;bgo -wy+ fq1)oon between a glucose molecule and a fructose molecule. Which molecule fits )+oq;u xwfy ;gb1i-ofthis description?

  What bond is formed b:ctj kn.foh ( t+g31lujy;r +between two glucose molecules to form maltose?

  What is the product of this reactionfyvuka8v5 t sf) 4;wi 81dlpm0?

  Which of the following is a stsw peweb1f) ztx87j(r.mo( 0wo q1/zeeroid?

  Which row in the table below correctly identifies the the cxb8 uc6fflx ,/onstituents of the named macromolecuulff / 8cxb6,xles?

  The diagram below shows the structure of 2 different monom9f :l, nzo)sfcd 5:s gh.0pqomers.



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 polymer 18 w bmvkb3*;qpen h9yjgq.(v.b/j en.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen is/are e 7fyu,q75zym*bd/ jqcorrect?
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 response7 rs(eh-8 ciny in a cell by binding to a receptor in the plasma7c8esiyh - (rn membrane?

The micrograph showsolc;fe(e65emlqhdr 6)tt/d ( a part 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 matb kz.4/w.g4rqhr6 ruu ched to the name?

  Eating a healthy, balanced diet is important in order to maintb scz(bw1r-3xain 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 consideb(xzc-w 1sb 3rred 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 tav hisor;: d8fg203b criglyceride?

Distinguish between the structure of cellul 5tsj(age jqh9cq/vr+ .hhy 04ose, starch and glycogen.

  Which molecule is sh;rlp3zt3q5e 8fa,c bcown in the diagram below?

  Which monosaccharides are matched to incorrect co6k9ie zlf-w 6o o(z;l2z5:kmen0av disaccharides?

  Which of the following is the correct composition of the n8oykh h50u6jnamed polysaccharide?

  Which of the following statementtee0ztay+ll;1oupj u 4o +zsy d1a jf4f3--v+s describes alpha-Linolenate, as depicted in the dif jpu4t- y+vyljd11aeutf3 o+l-o40ez za+ s;agram below?

Molecules used in metabolism can be classifien 6b eie)o/n/n*)u nvad as carbohydrates, lipids, and proteins. These molecules are often broken down into simpler units which are then n/en *n6e avub o)i/n)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 saturated 8ks2*qa1o/wwk 9vk i 1-c ffyafatty acid with a 16 carbon chain. Draw the structure of a palmitic ack1kw/9sf8va q*io 2yf-wcka 1 id.

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.