AS Biology Molecules, Biodiversity, Food and Health (OCR F212)

An extensive 70 page revision guide that covers everything in the OCR syllabus for AS unit 2 (F212). Will probably be of some use to those on AQA. Includes extra details to help answer "suggest why" questions. Not what your looking for if you just want some quick notes, but these provide a condensed version of a text book to help with thorough revision. Hope they come in useful! :)

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Biology F212
Contents Biological Molecules
.......................................................................................................................... 1
Water ............................................................................................................................................
1
State change .............................................................................................................................. 1
Temperature change ................................................................................................................. 1
Cohesion and surface tension .................................................................................................... 1
Solvent ...................................................................................................................................... 1
Transport medium ..................................................................................................................... 1
Reactions ................................................................................................................................... 1
Proteins .........................................................................................................................................
2
Amino acids ............................................................................................................................... 2
Peptide bonds............................................................................................................................ 2
Primary structure ....................................................................................................................... 3
Secondary structure…

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Triglycerides .............................................................................................................................. 9
Phospholipids .......................................................................................................................... 10
Cholesterol .............................................................................................................................. 11
Food tests ....................................................................................................................................
11
Carbohydrate tests .................................................................................................................. 11

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Biology F212 13/05/2012 17:08
Proteins ­ Biuret test ............................................................................................................... 12
Lipids ­ emulsion test .............................................................................................................. 12
Colorimetry ............................................................................................................................. 12
Nucleic Acids ...............................................................................................................................
12
Nucleotides ............................................................................................................................. 13
Organic bases .......................................................................................................................... 13
Polymerisation of nucleotides .................................................................................................. 13
DNA ......................................................................................................................................... 15
Semi-conservative replication .................................................................................................. 16
Genetic code ........................................................................................................................... 16
RNA ......................................................................................................................................... 17
Protein…

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24
Balanced diet ...............................................................................................................................
24
Malnutrition ............................................................................................................................ 25
BMI.......................................................................................................................................... 25
Health risks ..................................................................................................................................
25
Obesity .................................................................................................................................... 25
2
©Ross Edwards 2012

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Biology F212 13/05/2012 17:08
CHD ......................................................................................................................................... 25
Cholesterol ..................................................................................................................................
26
High density lipoproteins ......................................................................................................... 26
Low density lipoproteins .......................................................................................................... 26
Cholesterol in the diet ............................................................................................................. 27
Plants as foods.............................................................................................................................
27
Selective breeding ................................................................................................................... 27
Chemicals ................................................................................................................................ 28
Animals as foods ..........................................................................................................................
28
Selective breeding ................................................................................................................... 28
Chemicals ................................................................................................................................ 29
Microorganisms…

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Antibodies ............................................................................................................................... 35
Specific immune response ...........................................................................................................
36
Lymphocytes ........................................................................................................................... 36
Infection and reproduction of pathogen .................................................................................. 36
Presentation of antigens .......................................................................................................... 36
Clonal selection ....................................................................................................................... 37
Proliferation ............................................................................................................................ 37
Differentiation and action ........................................................................................................ 37
Cell signalling ........................................................................................................................... 37
3
©Ross Edwards 2012

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AS Biology Molecules, Biodiversity, Food and Health (OCR F212)

An extensive 70 page revision guide that covers everything in the OCR syllabus for AS unit 2 (F212). Will probably be of some use to those on AQA. Includes extra details to help answer "suggest why" questions. Not what your looking for if you just want some quick notes, but these provide a condensed version of a text book to help with thorough revision. Hope they come in useful! :)

Pages in this set

Page 1

Preview of page 1

Page 2

Preview of page 2
Biology F212
Contents Biological Molecules
.......................................................................................................................... 1
Water ............................................................................................................................................
1
State change .............................................................................................................................. 1
Temperature change ................................................................................................................. 1
Cohesion and surface tension .................................................................................................... 1
Solvent ...................................................................................................................................... 1
Transport medium ..................................................................................................................... 1
Reactions ................................................................................................................................... 1
Proteins .........................................................................................................................................
2
Amino acids ............................................................................................................................... 2
Peptide bonds............................................................................................................................ 2
Primary structure ....................................................................................................................... 3
Secondary structure…

Page 3

Preview of page 3
Triglycerides .............................................................................................................................. 9
Phospholipids .......................................................................................................................... 10
Cholesterol .............................................................................................................................. 11
Food tests ....................................................................................................................................
11
Carbohydrate tests .................................................................................................................. 11

Page 4

Preview of page 4

Page 5

Preview of page 5
Biology F212 13/05/2012 17:08
Proteins ­ Biuret test ............................................................................................................... 12
Lipids ­ emulsion test .............................................................................................................. 12
Colorimetry ............................................................................................................................. 12
Nucleic Acids ...............................................................................................................................
12
Nucleotides ............................................................................................................................. 13
Organic bases .......................................................................................................................... 13
Polymerisation of nucleotides .................................................................................................. 13
DNA ......................................................................................................................................... 15
Semi-conservative replication .................................................................................................. 16
Genetic code ........................................................................................................................... 16
RNA ......................................................................................................................................... 17
Protein…

Page 6

Preview of page 6
24
Balanced diet ...............................................................................................................................
24
Malnutrition ............................................................................................................................ 25
BMI.......................................................................................................................................... 25
Health risks ..................................................................................................................................
25
Obesity .................................................................................................................................... 25
2
©Ross Edwards 2012

Page 7

Preview of page 7

Page 8

Preview of page 8
Biology F212 13/05/2012 17:08
CHD ......................................................................................................................................... 25
Cholesterol ..................................................................................................................................
26
High density lipoproteins ......................................................................................................... 26
Low density lipoproteins .......................................................................................................... 26
Cholesterol in the diet ............................................................................................................. 27
Plants as foods.............................................................................................................................
27
Selective breeding ................................................................................................................... 27
Chemicals ................................................................................................................................ 28
Animals as foods ..........................................................................................................................
28
Selective breeding ................................................................................................................... 28
Chemicals ................................................................................................................................ 29
Microorganisms…

Page 9

Preview of page 9
Antibodies ............................................................................................................................... 35
Specific immune response ...........................................................................................................
36
Lymphocytes ........................................................................................................................... 36
Infection and reproduction of pathogen .................................................................................. 36
Presentation of antigens .......................................................................................................... 36
Clonal selection ....................................................................................................................... 37
Proliferation ............................................................................................................................ 37
Differentiation and action ........................................................................................................ 37
Cell signalling ........................................................................................................................... 37
3
©Ross Edwards 2012

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