Which reaction converts monosas/97+ ,y2r b jbm3k ro7q-htf2wmvyqbccharides into disaccharides?

  1.State the reaction that forms disaccharides fro9of (ukzg*gu 4m*+o l/tw7 frw5i;x rxm 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 lactaoxtg 14c gwshp3 7gte-ig:b1(se?

  Biomolecules have diverse forms and structures. Whichcwyr)j qx8b;- of the following statements is falsew;yqxr8b)- c j?

  A disaccharide is formed by a condensation reaction between a glucose molec c7o kra2ndxo p,6w x, yh(44d;rve +rsy+s0umule and a fructose molecu ds6ryyn 7uemrok d,24poa +vxhxwrc ,+( 0s4;le. Which molecule fits this description?

  What bond is formed between twjl1 az s0bolh;6 +pfg4o glucose molecules to form maltose?

  What is the product of this reactiod (yjxq :m4x3wnx k5.un?

  Which of the following is yco+j+rzu:q-zr ( zd; a steroid?

  Which row in the table below correctly identifies the ; *)2dabw4lof)z gmof the constituents of the named db4l*g zmo)2wafo)f; macromolecules?

  The diagram below shows the struc)kfy5cj / ,hg:sq ntkmm8n.5q ture 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 breakin w;t jfr7s /d9gh7n(rwg down of a polymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about st0i+ rz1z o(b 7zvqxjw.arch 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 response in a cell bym wdu75d j1w nf*ab+g, binding to au*w5a1fw m gjd,d+nb7 receptor in the plasma membrane?

The micrograph shows a part of a plant cell from the llc18y0 jhcd4feaf 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 na1d)by-wrlp8gau 15wb-l a v*v me?

  Eating a healthy, balanced diet is important in order to mainta9tw-tf( s2aekt2u y .kin overall health and a strong immune systyttw22k.- ku ae9ft s(em. A 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 trigljqiqen zteh5b t-wcm/ i,dy1j( d0*6(yceride?

Distinguish between the structure of cellud9err2gutn8c) u i2j xx 7+6ollose, starch and glycogen.

  Which molecule is shown in the diagram belo8zsrk10atsw0 fj t: 0tw?

  Which monosaccharides are matched to incorrect disaxg7fuk3m wssc;4dduz ,g*l1. +7i l ixccharides?

  Which of the following9,ffmjt0n g w0ks;1ir 1jm9yw is the correct composition of the named polysaccharide?

  Which of the following statements describes alpha-Linol : kd*7mjb p)h0)d jd3qdp3gqxenate, as depicted in the diagram jb3kdd:px)d mq7qp*3hd g)0j below?

Molecules used in metlphfy,e fii)1 5; .ylvef ;)scabolism can be classified as carbohydrates, lipids, and proteins. These molecules are often broken down into simp)vic1 his )yl ;le ye,f;f5f.pler 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 afy qe 7ucrdvl12 9w.a5n example of a saturated fatty acid with a 16 carbon chain. Draw the structure of a palmitic auyfd 5cw7.91q2 alvercid.

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.