[email protected] box shows a nutrient and the chemical test used for it.[size=3]This box shows a nutrient and the chemical test used for it.
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[img=706,1150]http://i524.photobucket.com/albums/cc324/orzxdxp/006-3.jpg[/img]
(a) The food we eat contains nutrients.
The nutrient and the chemical test are correctly matched in only three of the boxes.
Write down the letters of these three boxes.
[b][u](呢part我自己就寫左A,B and E. 不過好有可能錯!錯左話我知ya-v-)[/u][/b]
(b) Describe how you would do the chemical test using Benedict's solution.[/size]
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[size=3](c) The material that jeans are made from contains starch. [/size]
[size=3] A student spilled some amylase solution on her jeans.[/size]
[size=3](i) What type of substance is amylase?[/size]
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[size=3](ii) If the amylase solution was not washed off her jeans it would digest the starch. What would the digested starch be tured into?[/size]
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[size=1]ps:聽牙sir講好似係近年其中一條CE題-口-[/size]