Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
The main task of this experiment is to find out the concentration/volume of glucose present in samples of three different fruits. The fruits are fresh grapefruit, lemon and orange.
Member rating: No Rating | Words: | Submitted: Wed Aug 20 2003
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Biology Practical Assessment Skill Planning The main task of this experiment is to find out the concentration/volume of glucose present in samples of three different fruits. The fruits are fresh grapefruit, lemon and orange. Here is a table showing the different items that are to be used in the experiment. It also states the quantity and concentration and volume of each apparatus if appropriate. Item Quantity Concentration and volume Colorimeter 1 N.A. Cuvettes 2 Hold up to 10mls Distilled water 1 bottle 16ml Graduated pipette 1 Holds up to 10ml Test tubes 8 Hold up to 27ml each Test tube rack 1 N.A. Hot water bath 1 N.A. Chinagraph pencil 1 N.A. Coloured pencils (A range of different colours) N.A. Benedicts Solution 1 bottle 320ml Glass rod 1 N.A. 4% Glucose solution 1 bottle Here is a table showing reasons for why the items listed were chosen and their application. Item Application Reason for choice Colorimeter To give absorbance readings for samples Most Suitable method of getting accurate, absorbance readings Cuvettes Used to put substances into, to put into colorimeter Standard apparatus used with the colorimeter Distilled water To dilute solutions Needed in the process of serial dilution to...
To see the full version of this document, and 145,348 others
