Which reaction converts mzmyr* :r*p(rbx +a es6onosaccharides into disaccharides?

  1.State the reaction thf k3/0admg/c nqyxn fy7p8/+ 7+y(xti;k vjiqat 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;df .qp t*vmrq-1 +nlhqfon6u0fa6l8 the enzyme lactase?

  Biomolecules have diverse 6 90uk9zw rizkforms and structures. Which of the following statements is false?9r0k9z i k6uwz

  A disaccharide is formed by a condensation reacti 6mc ;2 n9cblykb8z.epsv-tv0 on between a glucose molecule and a fructose molecule. Which molecule fitmv;csn-9by8 0 b ctk.pl62 zevs this description?

  What bond is formed between two glucose molecules to t*sg;a a8 :7 outduz(cform maltose?

  What is the product of this reaction? e083l kjf1nlo

  Which of the following is d , 7v+.t**znzcku/:a ycha2kb,glh a a steroid?

  Which row in the table below correctly identifies the the constituents ofp 9zfxl8cw2; lw eml/3 the named macromo f;/w9pl xl23mw8 clezlecules?

  The diagram below shows the structure of 2 different apj)7+p7/ l xcif5xmbe lc*9nmonomers.



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 a pol vpm0rc7hm3y3v jsi y35 *0vtcymer.

2.Compare and contrast carbohydrates, lipids and proteins.

  Which statement(s) about starch and glycogen isd5kvwj0bm0 qt-j i7 hx2 j8 /htp1j.ll/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 resp7oe3, c xiu tua89cd(zonse in a cell by binding to a recexe79 d3otiu, uacz(8cptor in the plasma membrane?

The micrograph shows a part ofd(p p djf49bg-)vzx -l a plant 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.g m8kszuq3 sh6r+rrj3l 1ie) name?

  Eating a healthy, balanced diet is important in order to maintain overall heae 3*p+ 5 hzhm+fox em/kkp;th1lth and a strong immune system. A healthy diet means eating a wide variety of food whilst limiting the consumption ofkeo e*hxk;3/m+z p m p+h1tf5h 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 triglycsg)064e yffaxb w 2g4ka8zk1 oeride?

Distinguish between the structure of cellulose, starch and glycogeni f ho.;8(6 gq:bq.hvob 5dqbu.

  Which molecule is shown in tdqi9 ehf4s)j; he diagram below?

  Which monosaccharides a85sv2ksnx r3 tre matched to incorrect disaccharides?

  Which of the following is the correct composition mlw:i 78 utf;s( fnw.uof the named polysaccharide?

  Which of the following statements descynk-u)p 1bfx ap-( m0yribes alpha-Linolenate, as depicted in the diun0m-b-ppy)1kxy( fa agram below?

Molecules used in metabolism can be classified as carbohydrates, lipids, and proij7py( m/1+ocydhwa4 t oyd+14wpi hc/7(jamyeins. These molecules are often broken down 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 sat i3g;fgk9yet.urated fatty acid with a 16 carbon chain. Draw the structure ofgyek;9tfi 3 g. 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.