Copy and Edit

1.2 - 1.3 Carbohydrates

Description

This is my mind map: '1.2 - 1.3 Carbohydrates'. It is a mind map based on the AQA A-level Biology Specification, and is also based on the AQA Biology A-Level 2nd Edition Textbook that covers both of the 2 years of the AQA Biology A-level. Find my Carbohydrate Flashcards here: https://www.goconqr.com/en-GB/p/4793627
Bee Brittain
Mind Map by Bee Brittain, updated more than 1 year ago
Bee Brittain
Created by Bee Brittain about 8 years ago
779
17
0

Resource summary

1.2 - 1.3 Carbohydrates
  1. Monomer
    1. Polymer
      1. Polysaccharide
      2. Monosaccharide
        1. Glucose
          1. Hexose Sugar - C6H12O6
            1. Isomers
              1. a-glucose
                1. b-glucose
              2. Galactose
                1. Fructose
              3. Test For Reducing Sugars
                1. Reduction - A chemical reaction involving the gain of electrons
                  1. Therefore a reducing sugar = donates electrons
                  2. BENEDICTS TEST
                    1. Alkaline solution of Copper (II) Sulphate
                      1. When HEATED with a reducing sugar, forms an insoluble RED precipitate
                    2. Disaccharides
                      1. Glucose + Glucose = Maltose
                        1. Glucose + Fructose = Sucrose
                          1. Glucose + Galactose = Lactose
                            1. Made in a CONDENSATION REACTION
                              1. Molecule of water MADE
                                1. Glycosidic Bond
                                2. Broken down in a HYDROLYSIS REACTION into original monosaccharides
                                  1. Molecule of WATER ADDED
                                3. Test for Non-Reducing Sugars
                                  1. Must be in solution
                                    1. Add Benedict's regent and heat
                                      1. No colour change
                                        1. Reducing sugar not present
                                          1. Add food sample to dilute HCl + heat
                                            1. This will hydrolyse any disaccharide present into constituent monosaccharides
                                              1. Add sodium hydrogencarbonate solution to neutralise acid
                                                1. Benedicts doesn't work in acidic conditions
                                                  1. Test with pH paper
                                                    1. Re-test with Benedict's
                                                      1. Heat
                                                        1. If a non-reducing sugar present in original sample, Benedict's will turn orange/brown
                                                          1. This is due to reducing monosaccharide's made from non-reducing disaccharide

                                        Media attachments

                                        Show full summary Hide full summary

                                        Want to create your own Mind Maps for free with GoConqr? Learn more.

                                        Similar

                                        Enzymes and Respiration
                                        I Turner
                                        AQA Biology 8.1 structure of DNA
                                        Charlotte Hewson
                                        Biology AQA 3.1.3 Cells
                                        evie.daines
                                        Biology AQA 3.2.5 Mitosis
                                        evie.daines
                                        GCSE AQA Biology - Unit 2
                                        James Jolliffe
                                        GCSE AQA Biology 1 Quiz
                                        Lilac Potato
                                        GCSE Biology AQA
                                        isabellabeaumont
                                        The Circulatory System
                                        Shane Buckley
                                        Biology B1.1 - Genes
                                        raffia.khalid99
                                        B3 Quiz
                                        Tess Brockway
                                        biology 1-4
                                        ady2700
                                        Browse Library