Which reaction convert ph;hk 8b(cdnyi;m24egnqq n6 y+r::xs monosaccharides into disaccharides?

  1.State the reaction that forms disaccharides frqanl0j6 fl4 a2xm2*x dom 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;bp1s ;1fqw4 ny nz.kehlk0h. the enzyme lactase?

  Biomolecules have diverse forms and :pqw e*q enl3fo*t vu922e d7xstructures. Which of the following statements is falseqe*w7uot e2xf2d3pv l*:q9 e n?

  A disaccharide is formed byrp e ,xxand1eaz/n.0l+d9yqlw9 *ns0 a condensation reaction between a glucose molecule and a fructose mole e., wayns+/pr99l* lna0 d1xq0dnzexcule. Which molecule fits this description?

  What bond is formed between two glucose molecule:xww bt f- ,s3:/bykoes to form maltose?

  What is the product o2./vdhg oir24 imu -qxf this reaction?

  Which of the following is a5 *cd hw(u94pfsrn 6cx steroid?

  Which row in the table below correctly identifies the the .y u2rblr xe0t 4)e2:whulev+e q8hf/constituents of the named m eleu)yrhb+h2 qlx8vu4reef0 w2t./ :acromolecules?

  The diagram below shows the structuav4a t44 c3v4jwzr(.(d ai rdgre 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 4*:yz hp8uxcxl4mbij65n1 gllovz7 ,a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starhvool gls( bxc5n co),,0 :4njch and glycogen 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 respoa8d3+:b ox gqjkl7wd 1nse in a cell by binding to a receptor in the plak gd 1a73xl+d:ob 8wjqsma membrane?

The micrograph shows a part of a planmm2yyv72j ( bct cell 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 correctly matched to th 8 w+o:t9 i4 )gdryypvdn8u3mee name?

  Eating a healthy, balanced diet is important in ordquuu0phw;)- w er to maintain overall health and a strong immune system. 0 u-p w;)huuqwA 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 a triglyce,y 2-fjxbde: .ucy n-r2 b)deqride?

Distinguish between the structure 8u3kxc9-aa3ko 5k yv gof cellulose, starch and glycogen.

  Which molecule is shown in the s4 /pp cyfc;*bdiagram below?

  Which monosaccharides are matched to incorrect g3rzj mb .i)i (8xfpz3disaccharides?

  Which of the following is the correct cji0fuv;u u w76omposition of the named polysaccharide?

  Which of the following statements describes alpha-Linolenate, as de j;ol4 2au bsq5n:dv a5q..eqhpicted in the diagram 5uh2e.s5:4djv .oaqn bq;alqbelow?

Molecules used in metabolism can be clas1g c)ko q-y7pe; rw6ygsified as carbohydrates, lipids, and proteins. These molecules are often broken down into simpler units which are 6w g17yro-q;g)e kpcy 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 fattut6 wsrum s96x qa;q- s0;dbms/e,.tay acid with a 16 carbon chain. Draw the structure of a palmitic acid. s6uq- qs wer;ad;x/9mmtat,60 bu ss.

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.