J2-5-4
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Wei-Shin Huang
Used 2+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列有關醣類的敘述,何者正確?
由碳、氧、硫三種元素組成的物質,又稱為碳水化合物
人類無法分泌消化纖維素的酵素,所以纖維素對人類的身體毫無用處
澱粉是小分子化合物
水果中的果糖、血液中的葡萄糖及市售的麥芽糖皆屬於醣類
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列有關脂肪的敘述,何者錯誤?
由碳、氫、氧元素所組成
為脂肪酸和醇酯化而成的小分子化合物
常溫時動物性脂肪常呈液態
常溫時植物性脂肪常呈液態
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
右圖簡單表示肥皂分子的構造。洗滌衣服時,油汙應附在哪一邊呢?
左端
右端
中間
不一定
4.
REORDER QUESTION
1 min • 1 pt
請問下圖中肥皂的去汙作用示意圖,正確的順序排列為何?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有關肥皂與合成清潔劑的敘述,下列何者正確?
肥皂與洗衣粉均屬酸性,因此使用後的廢水排入河流,會汙染河流
一般清潔劑分子包含親水端和親油端兩部分
合成清潔劑的去汙原理和肥皂的去汙原理不一樣
肥皂吸附油汙時其親油端在油外部
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列有關蛋白質的敘述,何者正確?
由許多澱粉聚合形成的天然聚合物
人類攝取的蛋白質來源可分為動物性蛋白質與植物性蛋白質
蛋白質受熱或遇酸鹼時,外觀會改變,但是結構上不會變化
細胞中含量最少的有機物質
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