看板 NTUBST94 關於我們 聯絡資訊
※ 引述《Akwong ( 沒差 xDDD)》之銘言: : 給大家參考參考 : Q 細胞質流向有一定方向嗎??... : A 因為相鄰的細胞它的細胞質流方向都會相反,這樣在靠在一起的地方就會同方向, : 就像是兩個咬和的齒輪轉的方向會不一樣,這樣可以減少摩擦,比較節省能量, : 而且交換物質的時間也比較夠。 : Q Cytoplasmic streaming有啥意義 : : A It vigorously "stirs" these components about the cytoplasm. : As membrane-bound organelles crawl along the inner cell wall they set : the cytoplasm into motion. This streaming allows other organelles : and nutrients to flow in the stream created. This allows the components : of the cell to flow around the cell and balance the amount of nutrients : that exist in different parts of the cell providing nutrients and enzymes, : as well as a means of motion for unicellular eukaryotes, like amoeba. 為了不要有怪怪的中文出現...我就翻重點好了... 細胞質迴流能夠讓胞器和營養物在細胞質內流轉,所以能夠讓細胞的營養物、 酵素的含量,處在一種平衡的狀態。 但我個人認為,對植物最重要的差別,在於能夠讓每個葉綠體都有最大吸收光能的效應。 : Q ergastic有哪些!? 存在於哪裡 : Ergastic substances are non-protoplasm materials found in cells. : The living protoplasm of a cell is sometimes called the bioplasm : and distinct from the ergastic substances of the cell. : The latter are usually organic or inorganic substances that are products : of metabolism, and include crystals, oil drops, gums, tannins, resins : and other compounds that can aid the organism in defense, : maintenance of cellular structure, or just substance storage. : During the lifetime of a cell, these can appear and disappear, : indicating some level of participation in life processes. : Ergastic substances may appear in the protoplasm, in vacuoles, : or in the cell wall. 後生物質大部分都是生成於新成代謝的有機或是非有機的物質,包含了結晶體、油滴 、黏膜、單寧、數脂和其他的可以幫助防禦自身、維持細胞結構或者儲存物質的東西。 在細胞的一生之中,這些東西能夠出現或消失,他們會出現在細胞質、液胞、細胞壁 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.34.128.50
cs00658:小五我愛你~~ 10/16 22:08
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