Which reaction converezzt*i o q67to2ock* ;ts monosaccharides into disaccharides?

  1.State the reaction e z lu*k khic1-vs4z7:that 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 the enzymeksi u*5l1zuolsl,2 6avsr ;) f lactase?

  Biomolecules have diverse forms and ssog/ n o)e*i5gcqgtf-djs8e( ml x,7/tructures. Which of the following statements is cx*ssl/ im5-o,gqej 87tg eo(/ng)d ffalse?

  A disaccharide is formed by a condensation reaction between a glucose molec f0mui-( o65- uslks/))gvtmxmm 6dumule and a frm -xt) u lgdsmmmmu-u6 5(/s)kv0if6ouctose molecule. Which molecule fits this description?

  What bond is formed between two glucose molecules to form . (ys-9upmxqj maltose?

  What is the product of this q8f1y qc5oc82mvvi g;reaction?

  Which of the following is ah m8.u 5uu iwsi:coj5- steroid?

  Which row in the tably,+ l0w ru5vrde below correctly identifies the the constituents of the named macromol 50u+,rrdlwvy ecules?

  The diagram below shows thh6lc76 g,woxik;0 z lle 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 formpuv+p ri.r2k 0ation and breaking down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen y0oc pob7y u8( k3qaqp5p*mj( 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 wwkxtqz- *+qyk;/1 ( qhdaa 4wa response in a cell by binding to a receptor in the plasm4 wqwzq(d w1/qa+hx ; a*k-tkya membrane?

The micrograph shows a part of a plant cell from the:+4my/pmzu.jkg3)h d,xeavle ,n m 7a 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*b:n sk w 8vyorb2m+,ps+mq 1d to the name?

  Eating a healthy, balanced did cr932x:lrfn et is important in order to maintain overall health and a strong immune system. A healthy diet means eating a wide d23 9fncxrr:lvariety 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 rjkbf zal-/ 5sbm.3 *ctriglyceride?

Distinguish between the structure of cellulose, stami 9jee,e c n9et))qo9rch and glycogen.

  Which molecule is shown ingarf:. tkd.ke;) fd3g the diagram below?

  Which monosaccharides are y(q l,:.t ;f . t3yizm5hsxnm.ufpki/i .1prw matched to incorrect disaccharides?

  Which of the following is th0t ),*1tdbh h9utz ecde correct composition of the named polysaccharide?

  Which of the following statements dejwca26jseb3 * scribes alpha-Linolenate, as depicted in the diagram bw6s2ej*cb a j3elow?

Molecules used in metabolism can be classified as carbohydrates, lipids, and pr c7).pi:-r9r/b*9ck 2osij+tsaelt u(ihrg boteins. These molecules are often broken down into simpler uncr/oihtpeui bljk 2is9)t-+.sbgc r *( ra9 :7its 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 g):3c ).f/ yz yulkefva saturated fatty acid with a 16 carbon chain. Draw fyzufge:.3) vylc)/k 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.