问答题Chemistry is the study of the behavior and composition of matter. All foods aremade up of chemical substance which undergoes chemical changes when cooking　　 1．______in an oven or digested within the body. The cooking of meat and vegetables induce　2．

Chemistry is the study of the behavior and composition of matter. All foods aremade up of chemical substance which undergoes chemical changes when cooking　　    1．______in an oven or digested within the body. The cooking of meat and vegetables induce　2．______chemical changes, making it more delicious; similarly the leavening action of　　　3．______baking powder is a straightforward chemical change, as is the conversion ofstarch into sweet sugars by digestion.Cookery is a science requiring a knowledge of chemistry.　　　　　　　　　　　     4．______This is evident from the variety of cooking products and food additives availableas cooking oils, fats, colorings, sweeteners, tenderizers, flavorings, screamingagents, preservatives, etc. Each is carefully prepared before painstaking　　　　　5．______research.　　It is therefore essential for trained cookers to understand　　　　　　　　　　6．______chemical science in order to appreciate the chemistry nature of foods　　　　　　　7．______and the changes achieving on cooking. Homeworkers should also　　　　　　　　      8．______know cleansing agents and textiles used in the home and how the latter　　　　　　 9．______responds to the effects of heat, light, water, and chemical cleansing agents.　　　10．______