3-3~3-4植物及人體如何獲得養分_1
Quiz
•
Biology
•
7th Grade
•
Practice Problem
•
Medium
JOESPH HSU
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
綠色植物行光合作用的主要目的為何?
提供氧氣供人類使用
降低溫室效應對地球的傷害
維護環境美觀
製造養分
Answer explanation
綠色植物行光合作用的主要目的是為了製造養分(葡萄糖)供自己使用,產生氧氣以供人類呼吸或降低溫室效應對地球的傷害並非主要目的
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖為葉片的橫切面圖,何處為葉片主要行光合作用的地方?
甲
乙
丙
丁
Answer explanation
甲:上表皮;乙:角質層;丙:葉肉;丁:氣孔;戊:下表皮。(C)葉肉內含葉綠體。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在「光合作用需要日光」的實驗中,最後一個步驟,將碘液滴入葉片,葉片呈藍黑色,證明光合作用所產生的養分已轉換為何物儲存起來?
葡萄糖
果糖
澱粉
蔗糖
Answer explanation
光合作用產生的葡萄糖,可以轉換為澱粉、蛋白質和脂質等養分儲存在植物體內。碘液可檢測澱粉,因此當葉片呈藍黑色,證明光合作用所產生的養分已轉換為澱粉儲存起來。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
人的消化系統中,兼具消化和吸收的器官為何?
小腸
大腸
胰臟
胃
Answer explanation
小腸是消化道中最長的器官,也是分解食物及吸收養分、水分的主要部位
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
人體在蛋白質的消化上,與下列何者無關?
胃液
胰液
膽汁
腸液
Answer explanation
膽汁具有乳化脂質的功能,能將脂質變成脂肪小球,有助於酵素的作用
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下各個消化器官,當食物經過時,其中食物混合消化液的酸鹼性何者錯誤?
胃─酸性
口腔─酸性
小腸─鹼性
食道─中性
Answer explanation
口腔的唾液為中性
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
吃飯時如果把飯糰咀嚼得較久,會感到甜味。這是因飯中所含的何種物質,被唾液分解成麥芽糖的緣故?
蛋白質
脂質
澱粉
維生素
Answer explanation
唾液中含有酵素,可將食物中的澱粉初步分解
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