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生物 高中

想問最後一行,為什麼高滲透濃度能保留大部分的水?

d. 血漿膠體滲 ② 再吸收作用(腎小管管腔→第二套微血管網 ● 定義:腎小管管壁上皮細胞將特定物質選擇性由濾液送到第二套微血管網的 過程。 ● 發生處:近曲小管(最主要)、亨耳環管、遠曲小管,甚至集尿管亦有參 與。 ④ 運輸方式: a.由濾液→腎小管管壁細胞:以主動運輸為主。 b.由腎小管管壁細胞→第二套微血管網:以促進性擴散(即被動運輸)為 主。 ④ 近曲小管:占70%。 a. 主動運輸:葡萄糖、胺基酸等營養成分的完全再吸收及Na+ 等離子的再 吸收,皆是以主動運輸的方式吸收。 b.被動運輸:CI(藉由陽離子運輸後的電位差)、HO(藉由溶質濃度差 異)、90%的HCO,是以被動運輸的方式再吸收。 6 亨耳環管:占15%。 a. 下降支:對水可完全通過,但對無機鹽不具任何通透性,故水分隨著組 織間滲透壓上升,不斷被動運輸滲透到管外。拍獅寶查驗人 b. 上升支:對水不具任何通透性,細段對 NaCl 有通透性,NaCl 經擴散作 用移出管外;粗段管壁對NaCl 的運出則由擴散轉為強力的主動運輸。 c.生活在乾燥地區的哺乳類動物(如沙漠跳鼠),其耳環管較長且發 達。 6 遠曲小管和集尿管:占14%。 大衛 a. 遠曲小管再吸收HO、NaCl與HCO 0 b.集尿管:主要再吸收 NaCl、H,O 及尿素,前段對水有通透性,對無機鹽 卻沒有。髓質深部管壁對尿素有通透性,管中尿素擴散進入髓質之組織 制液。 髓質組織液的高滲透濃度(由NaCl 和尿素構成)使腎臟可以排出高張尿 液,而保留大部分的水分。 6. 尿 (1)

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英文 高中

求解😖請問為什麼19.是depend (然後遇到這種的通常要怎麼判斷😭 每次看到都不會判斷到底要用原型還是ving 還是ved ) 感謝🙏

第16至20題為題組 particles that hit Earth The sun is a huge, fiery globe of gas. Every now and then, it sends out massive waves of charged 16 speeds upwards of a million kilometers an hour. These charged particles interact with our magnetic northern and southern poles, 17 a breathtaking light show that enthralls all its viewers. These light shows are known as auroras. Since Earth's magnetic field is strongest at its poles, auroras because they occur at any appear most brightly near the North and South Pole. They are not 18 time of the year. Auroras appear as slowly moving curtains, bands, spots of color, and a variety of other shapes that shift across the sky. They can also exhibit more than one color at a time. The colors, ranging from purple to green, 19 on the altitude of oxygen and nitrogen penetrated by solar energy. The most common color on view is green because it is at lower altitudes and people can see green the easiest. Photographing the breathtaking auroras is not difficult, but photos don't do them auroras is something that needs to be experienced in person. At.-speed 16. (A) at 20. Viewing (B) by (C) in (D) from 17. (A) serving as (B) checking out 18. (A) regional (B) seasonal (C) reporting to (C) universal (D) resulting in (D) normal 19. (A) to depend (B) depend (C) depending 20. (A) harm (B) wonders (C) justice (D) dependent (D) favors 1104)

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