Which reaction converts monosaccharides into disacchad8b a.p7a(rsls5*k nwf t rd87rides?

  1.State the reaction that fora5k)hfa8/-x.ajz uu6eqtnz e5ocq.; ms 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 enzyme lac0 5d 1kq:iml;lxb:e oztase?

  Biomolecules have diverse forms and st/lp* wgz/h jp-pdl (s.d2jeqgudr52. ructures. Which of the following statements is false?ezpp. gddpq2rlj g/h5 wulj s (2.d/*-

  A disaccharide is formed by a cohs*ms-fzvry m o .7.9kndensation reaction between a glucose molecule and a fructose moleco9*frhm.k7y-m s . zsvule. Which molecule fits this description?

  What bond is formed be2y or30:cm xvbtween two glucose molecules to form maltose?

  What is the product of thi*qabpej7nvo4 mu7+s8 s reaction?

  Which of the following is rva):8 pz1 gis4payh (a steroid?

  Which row in the table below correctly identifies the the constituents of dcxzx*a h)m:* the named macrcza*x)x dhm*:omolecules?

  The diagram below shows thei aflal0 u6)3u 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 r4.ecy t;wb8c39objy a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogb zhs0i,q8)c ew1hi k9do0apt;r2ug9 en 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 ojqfmxh:m )a6mb+ 9c ,smv6go,nly able to trigger a response in a cell by binding to:b6qom +a9x,j6 mch)g mmv, fs a receptor in the plasma membrane?

The micrograph shows a part of a plant cell from ther71; dz( ngpvz 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 to the na*occul.b9dz9d+/ ca (t6 tk ifme?

  Eating a healthy, balanced diet is important in order to maintadlgjaxhqxram3) 21 l82j3f8 oeg1mx 1in 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 considered to be mma11g 3xh l2rj8xfdoqa18lxg3)j e 2 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 1 g8dymo g2ezt.wa:0da triglyceride?

Distinguish between the structure of cellulose, starch and glycousma +t0ik6pj k dp2f7my*5 f-gen.

  Which molecule is shos/p()kea 6d fdw63pt am(-h nop q0aoqh)n9)awn in the diagram below?

  Which monosaccharides are matchedm(8x zj)q0omq to incorrect disaccharides?

  Which of the following is the correctu3lm,.)l8i 7zdtrjcb x 7v* nq composition of the named polysaccharide?

  Which of the following statements describes alpha-L+,ok x a8*f74uidv pxxinolenate, as depicted in the diagk *,xf vpdxa oiu487x+ram below?

Molecules used in metabolism can be classifi n5f0tnrmx3*c ed as carbohydrates, lipids, and proteins. These molecules are often broken down into simpler units which are thm0tfcr *35 xnnen 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 fatsv+r) 9m; +kh0y ugfkdty acid with a 16 carbon chain. Drfm y;rgdh9+v0kk+)u saw 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.