Which reaction converts monosaccharides inc2xn7jf x7c7 tto disaccharides?

  1.State the reaction that forms disaccharides from mon3 /dwg2ytxm/ 8wsj v-wa.f+dkosaccharides.
   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 enzymege hnhqk y2s)sc357p * lactase?

  Biomolecules have diverse fju)ouqvc7t39 l3x5 q.x ajn d/orms and structures. Which of the following statements is false?.a5lcu nqt33dq jox 7v/9jux)

  A disaccharide is formed by a condensation reaction between a glucose mwwk7+ o3+ve13xwlayk olecule and a frlkew kv+33o ayx+w17w uctose molecule. Which molecule fits this description?

  What bond is formed bp2* rc+o+ h9am tcsws8n g8nx:etween two glucose molecules to form maltose?

  What is the product of this reaction? 8( f8g;c/tlw mn:wjni

  Which of the following is a steqssfkv 1 u 1 7o)z23 w5q bq(s2l*zbyyrq;eov8roid?

  Which row in the table below correctly identifies the the conxa i;b7 q25dqzstituents of the named macromolq2iabx ;q57zdecules?

  The diagram below shows tc x7)cye/- 3 .oaouwmkhe 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 down of a polymes(n8 m5vml2v ljtp* 9dr.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogenudw)z/ecq*f 6 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 to trigger a response in a cell by bin q,rx9ovxosirt +z7j o( z4u92ding to a receptor in the plasma moxv9rxqo4szt2,+ z (r7oj u 9iembrane?

The micrograph shows a part of a plant cell frdm3pd0 4tgz4 qom 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 matched ,(0toqxd qn-rto the name?

  Eating a healthy, balanced diet is important in order to maintain overal:j5okf75n dyrewjn* 2l health and a strong immune systj:r72*fjkd5no ew y5nem. 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 az.tqz t x);1nl8,:wwg xz (wfk triglyceride?

Distinguish between the structure of cellulos8i +y lnycu:)de, starch and glycogen.

  Which molecule is shown in the diagram below(+gw(,g ;ijrf,.z ) lw ueisqecu79sw?

  Which monosaccharides are matched to incorrect k ix5xk1z.(zpdisaccharides?

  Which of the following is the correct composition of the nam7ldn4u-g4op3iw 3ln 1b t-ngq/ rijv3ed polysaccharide?

  Which of the following statements describes alpha-Linolenate, 4 fso2-cctc .nh(buwv. n;rk(as depicted in the diag( k.c; (rh4 w-cnuvn.c2tfbsoram below?

Molecules used in metabolism can be cla/qltzqbr;0// ,or txmssified as carbohydrates, lipids, and proteinzt//xt lobqm,0r/; r qs. These molecules are often broken 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 exampc a2auk0s (qf9le of a saturated fatty acid with a 16 carbon chain. Draw the structure of a palm9auq f(s kca02itic 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.