Which reaction converts monosaccharides into disacs p537adjx5;pm uog5m charides?

  1.State the reaction t 5gk3 tsn)ajt,d (v/nihat 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 r s(w+zsye1h+fqdgma9 7*+ eathe enzyme lactase?

  Biomolecules have diverse forms and structures. Which of the followi xzs6c1h7 7+s -n ngyich)xfgao o/7r;ng statements is fals6i/g;hay 1cr+s77s n- znfo7)cxohgxe?

  A disaccharide is formed by a condensation reaction xpbyncj7 ./7kcw0z,6 vblif 8between a glucose molecule and a fructose mole,0y 8bc/7 pwlv kcbizx6j.7f ncule. Which molecule fits this description?

  What bond is formed between two glucose mof,skgh:7 46) z j4wg;27 ystcd budjkxlecules to form maltose?

  What is the product qc8d*4rr btr9 ssg. b0bwtc::a*wmn.of this reaction?

  Which of the following is a steroid?89kde ypgqa(w 2mg -2yail s:1

  Which row in the table below correctly identifies the the constituend5hfb- as/3wlv: b fp.ts of the named macromolecuf fa:pvb dw-sh./3 bl5les?

  The diagram below shows the structure of 2 different monon e0w4 yjtt.5bc,h :onmers.



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 oa2(go s4pfm)t5r1t3bbk4 , g6 iwqahuf a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogenc-zo is: yscttls6go,3ve* /.gn h9.npq ah+) 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 t h 7j 7xh./9t6znw7eh(gwo5vp2lpsd response in a cell by binding to a receptor in theeztp9j v l /gxnth 7o(d6h7w7.swh2p5 plasma membrane?

The micrograph shows a part of a plant cell fz-.svwfw8s a--2r mt hrom 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 td jwajvf. o2ry m pf,-,,d+p5dy w(-bmatched to the name?

  Eating a healthy, balanced diet is important in order to maintain overall n8fp5rjk 1l*o health and a strong immune system. A healthy diet means eating a wide variety of food whilst limiting the consu5loj*pknf 8r1 mption 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 triglycs v3 tx,b:0fbd3j sw9leride?

Distinguish between twn4qx4o, tc q6he structure of cellulose, starch and glycogen.

  Which molecule is shown y)0 q bxcai+t4in the diagram below?

  Which monosaccharides are 6x0dv cnpv7ek r 22ngcz 91pt1d*z: a)xk.szumatched to incorrect disaccharides?

  Which of the following is the k44*b3 n5oxqk ys,xfecorrect composition of the named polysaccharide?

  Which of the followin 2b(,xi trlmxcxe1,5 /vbdsd1g statements describes alpha-Linolenate, as depicted in the sd1/itbdc mr2l 5x b1(,xve ,xdiagram below?

Molecules used in metabolisa ofxk/37wy7 z wx73jim can be classified as carbohydrates, lipids, and proteins. These molecules are often broken down into simpler units wy/ f3o7xz3wj ki77xw ahich 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 saturated fat/w nbas0y/z3 w zx*m(gty acid with a 16 carbon chain. Dz(zw ams/3xy /0wbgn *raw 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.