148 APPENDIX C 



EQUIPMENT 



First Milk Experiment 

 Per student 



^ pint of milk 



1 ft- of cloth 



9" of dialysis tubing, ^" in diameter 

 large test tube (20 X 150 mm) 

 test tube (16 X 150 mm) 



2 stirring rods 

 wax pencil 

 box of matches 



4 cardboard containers 



No. rubber stopper or cork 

 No. 4 rubber stopper or cork 

 bunsen burner 

 2 400-ml beakers 



dropping bottle of 4 A'^ hydrochloric acid 

 spatula 



5-ml serological pipet 

 test-tube rack, with holes 1 in- 

 tripod or ring 

 wire gauze 

 250-ml beaker 



Per 2 students 



Buchner funnel, 56 mm in diameter 



500-ml suction flask 



aspirator 



Per 8 students 



small bottle of glass beads 



2 boxes of paper towels 



1 gal 95% alcohol 



1 pint of acetone 



box of Whatman No. 1 filter paper, 56 mm in 



diameter 



buffer solution (200 ml) 



dropping bottle of enzyme solution 



Second Milk Experiment 

 Per student 



14 test tubes (16 X 150 mm) 



5 small test tubes (13 X 100 mm) 



2 6" medicine droppers 

 5-ml serological pipet 

 400-ml beaker 

 250-ml beaker 

 spatula 

 test-tube rack 



Per 2 students 



Buchner funnel 

 500-ml suction flask 



Per 8 students 



acetone 



filter paper 



10% sodium hydroxide (500 ml) 



dropping bottle of 0.5% copper sulfate solution 



Benedict solution. 

 Exercise IV 



1 liter prepared as directed in 



Paper Chromatography Experiment 



Per student 



soft glass tubing 



quart jar 



filter paper 



stapler 



oven 



wax paper 



beaker (water bath) 



2 test tubes, with corks 



formic acid 



isopropanol 



acetone 



ninhydrin 



alanine (10~^ M) 



aspartic (10~^ M) 



lysine (IQ-^ M) 



proline (10-^ M) 



histidine (10"^ M) 



methionine (10"'^ M) 



pangestin 



phosphate buffer (0.1 M, pH 7.0) 



thymol 



