為什麼是葡萄糖溶液

A 19. 紅血球細胞的總溶質濃度大約為2%,葡萄糖不能通過膜,但水和尿素可以。 紅血球浸在下列哪種溶液時,滲透作用會使之皺縮? A高張葡萄糖溶液 B低張葡萄糖溶液 Č C. 高張尿素溶液 D. 低張尿素溶液 E. 純水

為什麼第二部分是主動運輸呢

E. 膜通道蛋白 18.下列兩種情況:Ⓤ氧氣由血液移入肌肉細胞 ②昆布體內不斷由海水中攝入碘 其中氧氣及碘分別是透過何種方式進入細胞 A. 滲透、擴散 B. 主動運輸、胞飲 C. 滲透、胞吞 D. 擴散、主動運輸 E. 滲透、主動運輸 nl. 111. If this I boh it 20%. 苟苟蝙不能通過瞄,但水和尿素可以。

選項D E解釋

13. 有唾腺或其他腺體的腺細胞中,下列那一種構造的機能較其他細胞中旺盛? A染色體 B. 中心粒 核糖體 D.高爾基氏體 E. 溶小體 E

請問第26題⋯ 我的計算機無法計算三次方根 但由答案回推又不正確 想請問我的式子是否有誤？

3 48= 3a a Jr (2)4.42g/cm (C) Sodium crystallizes in a body-centered cubic structure (as drawn here) with a density of 0.97g/cm². Estimate its atomic radius. (A) 95pm (B)320pm (C)370pm (D) 190pm. p=0191= (brige)x a a 1.903x10 a² = 2.903x10? (108台大A) "in a face centered cubic lattice. The density of (D) - ha 3 Go 6x102 Q3 cm 27. Tunntal mare only miato 11izen in

18🙏🙏🙏

18 A cell engaged in phagocytosis must be A) engulfing a live organism B) acquiring a liquid C) engulfing a dead organism D) transporting bulk dissolved nutrients E) transporting bulk solid material

不太理解為什麼是若干exon和intron

l 」 ) 4 (B) 51./6% G 1.3 02.必加有徊 54. 真核細胞的一個基因只能編碼一種蛋白質,以下說法正確的是 (3它的編碼序列只含一個exon 和一個 intron_(B它的編碼序列含一個 exOn 和多個 interon (@它的編碼序列含多個 exon 和一個 interon (0D它的編碼序列可含若干 exon 和 intron np 下紀|有關非編碼區的敘述條正確的是 汪

一般若是血液抗體遇上抗原時不是會凝集嗎 為什麼看到Rh血型時反而兩者相遇時是溶血

3.Rh 血型:絕大多數人為 Rh(+) RBC 表面抗原 血漿中的抗體 D-Ag (Rh 抗原) 無 無 無.受刺激會產生 D-Ab (Rh 抗體) (DRh(+)血液若輸給 Rh(-) , 會使 Rh(-)者產生 Rh 抗體, 有有,'使RBC 溶解破裂 ,形成溶血現象。 Rh 抗體作 若再次} 將 Rh(+)者! 了液輸給 Rh(-) ' 會因 Rh 抗原和

生理學 想請問滲透壓（osmolarity）和張力（tonicity）的差別？

求這2題解答～ 感謝！

is the difference between ribozymes that are considered “true”catalysts gthat are not? true”catalysts are found only in prokaryotes On-true”catalysts do not employ any of the accepted mechanisms of rate enhancement C. “Non-true”catalysts do not recognize aspecific site on the substrate D. “True”catalysts are the same atthe end ofthe reaction as at the beginning E. “True”catalysts require a protein component 67. Which one ofthe following statements is true? In chromatin folding, the structure called a solenoid: A. is the most compact form of DNA. B. requires the presence of histone H1. C. isagood template fortranscription. D. consists of eight histone molecules around which DNA is wrapped. E. is the most extended form of DNA.

求解😭

6. Predict the direction of change for either supply or demand in the following situations: Several new companies enter the cell phone industry- Consumers suddenly decide SUVs are unfashionable- The U.S. surgeon general issues a report sfating that tomatoes prevent colds. Frost threatens to damage the coffee crop, and consumers expect the price to rise sharply in the future. The price of tea falls. What is the effect on the coffee market? The price of sugar rises. What is the effect on the coffee market? Tobacco Iobbyists convince Congress to (9 remove the tax paid by sellers on each carton of cigarettes sold. Anew type ofrobot is invented that will pick 和 b. Peaches. Nintendo anticipates that the future price of its games will fall much lower than the current price.