最後一分鐘的救命小卡(康軒國一上二段自然)
Flashcard
•
Biology
•
7th Grade
•
Hard
Shelly Tsai
FREE Resource
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20 questions
Show all answers
1.
FLASHCARD QUESTION
Front
碘液與本氏液的顏色變化
Back
碘液(測澱粉):原色為黃褐色→陽性反應為藍黑色。
本氏液(測糖/還原醣):原色為淡藍色 → 加熱後依糖濃度由低至高變色為 綠 → 黃 → 橙 → 紅。
2.
FLASHCARD QUESTION
Front
擴散作用與滲透作用
Back
擴散:分子由高濃度往低濃度移動(如:紅墨水在水中擴散、氣體交換)。
滲透:水分子通過半透膜的擴散。
紅血球變化:在濃食鹽水(高張溶液)中會皺縮;在清水(低張溶液)中會膨脹破裂。
3.
FLASHCARD QUESTION
Front
影響酵素活性的兩大因素
Back
溫度:低溫活性低(可恢復),高溫會破壞蛋白質結構導致永久失去活性。
酸鹼性 (pH值):不同酵素有特定喜好(胃蛋白酶喜酸、唾液澱粉酶喜中性、胰液酵素喜鹼)。
4.
FLASHCARD QUESTION
Front
光合作用簡易反應式
Back
原料:水 (H2O) + 二氧化碳 (CO2)。
能量:太陽能(光能)。
產物:葡萄糖 (C6H12O6) + 氧氣 (O2) + 水 (H2O)。
註:產物中的水通常在國中階段會強調產生,但簡式有時會約掉,教學上重點是「產出葡萄糖和氧氣」。
5.
FLASHCARD QUESTION
Front
葉綠體構造與反應場所
Back
葉綠囊(類囊體/堆疊像銅板):進行光反應(分解水,產氧、產能量)。
基質(膠狀物質):進行固碳反應/暗反應(利用能量將二氧化碳合成葡萄糖)。
6.
FLASHCARD QUESTION
Front
氣孔的開閉
Back
白天(有光):保衛細胞吸水膨脹 →氣孔張開(進行氣體交換與蒸散)。
晚上(無光):保衛細胞失水萎縮 →氣孔關閉(減少水分散失)。
7.
FLASHCARD QUESTION
Front
小腸絨毛內的運輸分工
Back
微血管:吸收水溶性養分(葡萄糖、胺基酸、維生素B、C、礦物質)。
乳糜管(淋巴管):吸收脂溶性養分(脂肪酸、甘油、維生素A、D、E、K)。
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