Which reaction converts monosaccharides intopb .cc e/q)o9p disaccharides?

  1.State the reaction that forfg1w8yp e, ;igms 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 dslwo mp8r7 q28j+w/ffor the enzyme lactase?

  Biomolecules have diverse forms and structures. Which of t:(v d q3 mlr3flvkpa+5gqv f4e.o;ea;he following statements is 3dp ffl(; ko3a.qr+:eve q5vg 4mal;v false?

  A disaccharide is formed by a condensation reaction between ar/ sj7wcz :j:i glucose molecule and a fructose molecule. Which molecule fits this descriptio7ri/c:sjw zj:n?

  What bond is formed between two glucose1xel jvz3r 4qbfgj0 5/ molecules to form maltose?

  What is the product of this reactionr:4zkj)zvhr7apv n9fc/0 qie ub2 t5 .?

  Which of the following im*t/wr,ila5 p s a steroid?

  Which row in the table below3 l ximm4okrk1hk 0b56 correctly identifies the the constituents of the named macromolecuok4 3bml krkh1x06 m5iles?

  The diagram below shows the structure of 2 different monomers. 1y/w-xil;f b/ vhkx ia7t,-la



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 betweep1wxbf. 5-9(zun,em qh gt7 xn.9vs ccn the formation and breaking down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen isi 2u5,wlgyx kp n ycf4;*5l+qjgaqk )0/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 onl2j5b 5el-kmsbm 12bg ry able to trigger a response in a cell by binding to12gbe5 5mrjk mb b2ls- a receptor in the plasma membrane?

The micrograph shows a part of a 6:1 gsuoj--ea 6 zskwnplant 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 the nys 2b 0.9,8gl 5rkd kzwpu/ys1fczks /13ttpfame?

  Eating a healthy, balanced.dot, qrl31 bq diet is important in order to maintain overall health and a strong immune system. A healthy diet means eating a wide variety of foo13ql od.,t qbrd 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 t wc.k(;w5:t:q: esxr5knlf utriglyceride?

Distinguish between the structure of cellulose, starch and6y9dki(mj uz ( glycogen.

  Which molecule is shown in the zqrhx(u2d / 7+(wpcb;v4pyix diagram below?

  Which monosaccharides are matched to incorrect disacc9rubgg7 ,/hhn(c*e6lcv w3x)n b 2elr harides?

  Which of the following is the8*-xavkgg ql 2 correct composition of the named polysaccharide?

  Which of the followig fpy /thwy:(mh-0r *ong statements describes alpha-Linolenate, as depicted in the diagram below? hgt(: hoy/0*mp-rfwy

Molecules used in metabolism can be classified as carbohydrates, lipids, and pro,nq.*6kpt6mvlp yi u7teins. These molecules are often broken doyin67q vtp.*u6 l,kpm wn 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 example of a saturated fatty acid withyb( j2g 1*y(sjdt 6gex a 16 carbon chain. Dxb 6d t*1ygej jygs((2raw 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.