Which reaction converts monosaccharides into disaccharideet 5bmov+8647tj eoke s?

  1.State the reaction that forms disaccharides from monosaccharlh u.ag v 0rxbq (,+-6gl.do/weakqx7ides.
   OR dehydration synthesis

2.Draw the products of the reaction between the two monosaccharides shown in the diagram below.

  What is the substrate for ti xt9(*pqni ,zhe enzyme lactase?

  Biomolecules have diverse forms and structures. Which of the following statemt/y o jqvf5uyjp +,:6fb1+ ov9afcdo+ents/ ffv+v ap+u6j yt+1, doc9yo5ob:jqf is false?

  A disaccharide is formed by a condenixrh i(4si4 c co q5f8)9pnnb*sation reaction between a glucose molecule and a fructose molecule. Which molecule fits this descriptionii8ni4 n*psh4 f c5cqob)9 (xr?

  What bond is formed between two glucose molecul50tl0f pcy2-.ormd z u+ek3qn es to form maltose?

  What is the product of this reactivx(y1ss jt:s /z 9fv8oon?

  Which of the followingm0pj6n 9lds 9jo. dum* is a steroid?

  Which row in the table below correctly identifies the */fd o;/n nil( xge)+y hyge yr29hho)the constituents of the named macromolh) l()e dy/n+;r9fyo/ eh* gxingo2hyecules?

  The diagram below shows the structure of 2 different c(4w:fbvzmlr a zk)k/ yh;g(.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 breakq(nsvb67*2nx7 swvam ing down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogencvd(2 lx(fn k(;x*eu x 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 t-3l 5qa1z hkjz.lh2ul o trigger a response in a cell by binding to a receptorz.z1h2a- l jqk lh3l5u in the plasma membrane?

The micrograph shows a part of a plant cell from thesz 3j0g0vcwz 4 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 corre(-sa .9qr5 htow5 zffactly matched to the name?

  Eating a healthy, balanced diet is ii0 sf7u jm1ku2mportant in order to maintain overall health and a strong immune system. A hek 1mf0jsu7ui 2althy 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 tr0l xysp7f2i9miglyceride?

Distinguish between the st3ciu 3iqgw w* 0jhpf rdq9913oructure of cellulose, starch and glycogen.

  Which molecule is shown ibxb onx772e0 9sgb6mh n the diagram below?

  Which monosaccharides are matched to incorrect disaccharb 1 ny zc;*g) unm,l5rq dghpq35*3ivnides?

  Which of the following i+o 0rbrh30.qxg jpafrij h* 60s the correct composition of the named polysaccharide?

  Which of the following statements describes alpha-Linolenate, as depictedk7miq1zk +eh 6b:dke8 in the diagram ik67zdk8 ek:q1+em hb below?

Molecules used in metabolism can be classified as carbohydrates, lipids, a go- 9o 1 a/aui8ktx5avawa5q*nd proteins. These molecules are often broken down into simpler units which are then involved in different metabolic reactia59w 8/ovx o aiakag q*15au-tons.

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 saturr*cy yx3v lki9:2zn)q ated fatty acid with a 16 carbon chain. Draw the structure of nyil)xqy3cz9r:v* 2k 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.