How are receptor proteins located in the cell membrance?

2

(a)

What is the basic difference between antiseptics and disinfectants?

2

(a)

What is the difference between saccharin and saccharic acid?

2

(a)

What are fillers and what role do they play in soap?

2

(a)

Give reasons for the following:
(i) Use of aspartame limited to cold foods and drinks? 
(ii) sometimes foaming is seen in river water near the place, where sewage water is poured after treatment?

2

(a)