X.液泡(Vacuole)液泡是植物细胞中的泡状结构。成熟的植物细胞中的液泡很大,可占整个细胞体积的90%。液泡的表面有液泡膜。液泡内有细胞液,其中含有糖类、无机盐、色素和蛋白质等物质,可以达到很高的浓度。因此,它对细胞内的环境起着调节作用,可以使细胞保持一定的渗透压,保持膨胀的状态。动物细胞也同样有小液泡。
1.1 has a large central vacuole. Suggest, with reasons, the role of the tissue formed by this type of cell. [2] © UCLES 2019 9700/22/M/J/19 3 (c) Structure B in Fig. 1.1 contains phloem tissue and xylem tissue and other tissues that provide support. (i) Name structure B. [...
生物专业常用词汇 IB IGCSE A level必备 biologyAbsorption 吸收 Accommodation 调节 Acid Rain 酸雨 Acne 粉刺 Active site 活性部位 Active transport 主动转运 Adaptation 适应 Additives 添加剂 Adenine 腺嘌呤 Amylase 淀粉酶 Anemia 贫血症 Angina 心绞痛 Angiosperm 被子植物 Anopheles 疟蚊 Anorexia 厌食 Antagonistic...
Lipid droplets were also observed to move towards the incipient appressorium and to coalesce into a central vacuole before being degraded at the onset of turgor generation [100,101,103–107]. It has been shown that the deletion of MoATG1-9, MoATG12, MoATG14, MoATG16, or MoATG18 ...
vacuole液泡 vagina阴道,叶鞘 valve心瓣膜 vari able变量,变数 vas deferens输精管 vascular bundle维管束 vasectomy输精管切除术 vasoconstriction and vasodilation血管收缩和舒张 vegetative propagation无性繁殖 vein静脉 hepatic portal vein肝门静脉 umbilical vein脐静脉 vena cava腔静脉 ventricle心室 ve...
Vacuole I'm a little organelle that carries materials from one part of the cell to another; I don't live long, but I can't be recycled: Vesicles The cells of all organisms need chemical energy to carry out life processes. What types of molecules can obtain this energy from sunlight? Th...
(A–H) Light micrographs of Syssomonas multiformis stages: flagellated cell with laterally emerging flagellum (A), flagellated cell with posteriorly orientated flagellum (B), flagellated cell with large food vacuole (C), amoeboflagellate (D), amoeboid stage (E), cyst (F), and two different ...
At the level of genomic DNA, the osteopetrosis mutation results in the deletion of 2781 bp of the SLC4A2 gene sequence, and thus the removal of roughly one-third of intron 1, the entire sequences of exon 2 and intron 2, and nearly half of exon 3. This has been confirmed by the suc...
Phosphate is mostly accumulated in the form of Pi in the vacuole of plant cells and in the form of poly-phosphate in the cytoplasm of AM fungi (Beever and Burns, 1980, Capaccio and Callow, 1982). Nitrogen as well as sugars can accumulate in AM fungi (Pfeffer et al., 1998). The ...
translational inhibition or lower the activity of viral RNA silencing suppressors (VSRs). Components, such as RNA- dependent RNA polymerase 6 (RDR6), RDR2, DICER-LIKE 2 (DCL2), DCL4, AGRONAUTE 1 (AGO1), AGO2, and PolIV are involved in this mechanism. V = vacuole; N = ...