148K What is cell theory? Learn the history of cell theory and the three main principles of cell theory with examples. See a modern interpretation of cell theory. Related to this QuestionWhat is the purpose of the cell membrane versus the cell wall in regards to other cells? What is t...
百度试题 题目The region between the outermembrane in___(革兰阴性)bacteria and the cell wall is called the ___(壁膜间隙)___.相关知识点: 试题来源: 解析 Gram-negative _periplasmic space 反馈 收藏
aThe majority of bacteria have a chemically complex external covering, terming the cell envelope, that lies outside of the cytoplasm. It is composed of two basic layers: the cell wall and the cell membrane. 多数细菌有化工复杂外在覆盖物,命名细胞信封,说谎在细胞质外面。 它由二基本的层组成: 细...
What are immature germ cells? What is one way that bacterial and archaeal cells differ from each other? What do bacteria have surrounding their cell membrane? What is the control center of the bacterial cell? About how many cells does a typical human contain? What are primordial germ cells?
a By definition, bacteria do not have a true nucleus. Their DNA is not enclosed by a nuclear membrane but instead is aggregated in a central area of the cell called the nucleoid. 由定义,细菌没有一个真实的中坚力量。 他们的脱氧核糖核酸没有由一个核膜在称nucleoid的细胞的一个中心地区附寄,...
Cells are considered the basic units of life in part because they come in discrete and easily recognizable packages. That's because all cells are surrounded by a structure called the cell membrane— which, much like the walls of a house, serves as a clear boundary between the cell's interna...
Bacterial cells undergoing lysis were also observed with SEM images, suggesting that the cell membrane integrity was altered. The possible trigger of this change could be related to cytoplasmic blebs, observed in SEM/TEM images. Staining with thiazole orange (TO) + PI has limitations and may...
Cells are the structural, functional, and biological units of all living beings. A cell can replicate itself independently. Hence, they are known as the building blocks of life. Each cell contains a fluid called the cytoplasm, which is enclosed by a membrane. Also present in the cytoplasm ...
All cells attached to the basement membrane but not all cells reach free surfaces is a description of___. a. Mesoderm b. Neuroglia c. Membrane d. Dendrite. Cell: All living organisms are made up of cells, which are the fu...
Plasma cells are key to the immune response because they secrete antibodies. Given that antibodies are made, which membrane-enclosed cell organelle would you expect the plasma cells to have in abundance? Why? (a) What is an MHC protein? (b) What is the ro...