Which reaction converts monosaccharides into disacchari a-n,uu,g3 +bg-yyrxanx :t r-des?

  1.State the reaction the c6iooiikhr963v 1t8 kej . +om )or-ooc8yb2at forms 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 enzyum jmfjz3 nbi1dd2.ez(03 y;pme lactase?

  Biomolecules have diverse forms and structures. Which of the foll ff5p ne,q/ qbx.az5c)owing statements is fefq n/5)z5,cba qx pf.alse?

  A disaccharide is formed by a condensation reacti*rw:lr8 lfr1v/;te f xon between a glucose molecule and a fructose molecule. Which molecule fits :*re8vwrxl; t/l f rf1this description?

  What bond is formed between two glucosc3ydx)1 nmku:j 4d f,je molecules to form maltose?

  What is the product of this reactis,a5 s r+lbxbfpk9+ p,on?

  Which of the following is a steroid? tk8+r2 0ix78trfmpp s

  Which row in the table below correctly identifies the the constituents of t6m4 swsl;0fj8 y* bphvhe named msb4 yv8*lwjh m psf;60acromolecules?

  The diagram below shows the structure of 2 different monomers;tm 4)0vna i0cb8ut3a cbars2.



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 form sas0+.lm1e:gv/3yz*q j wfgkation and breaking down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glyciv l:-nh 2b70:e mq*kgf9lcbbogen 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 onlys8tvjchu0. d 3 able to trigger a response in a cell by binding to a recep0htusdvc 8.3jtor in the plasma membrane?

The micrograph shows a part of a plant cellp*s bf usk2-n5 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 corr,(kxuvv5 jsy +kh2:g aectly matched to the name?

  Eating a healthy, balanced diet is important in order tobu;5,8 b nyxrf p zm8p23k;tpa maintain overall health and a strong immune system. A healthy diet means eating a wide variety of food wn; bp35pf8azxmpub, y ;rtk28 hilst 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 trigly f7tc)l /tq ++ck5hvgaceride?

Distinguish between the structure of cellue bkzkj zn u9 q/42.i8cz121k nb9dmiqlose, starch and glycogen.

  Which molecule is shown in the diyg3d 9s(lmk3ijl3 n 1+y:k:mi.dwi qeagram below?

  Which monosaccharides are yw) x/b st3ww1matched to incorrect disaccharides?

  Which of the following is the correct compositlrym5l 4+njck 4b4v:y ion of the named polysaccharide?

  Which of the following statements describev()0 cj+ssjd 2 ,nbsmis alpha-Linolenate, as depicted in the dcbnss(+s 0v) d,m jj2iiagram below?

Molecules used in metabolism can be classified astnd- tf 07p86bc01b8ika z ttu carbohydrates, lipids, and proteins. These molecules are often broken down into simpler units which arf6db azup1nt-88 t0it0kcbt7e 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 saturated fatty acid with a 16 carbon chai) rc cd,xcig-o*x2 ae4n. Draw the structurdracgx*co,x- e)2 4i ce 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.