Aside from differences in cellular and nuclear diameters, and nuclearcytoplasmic ratios, there are qualitative characteristics in ultrastructural organization.The cytoplasm of active corpus allatum cells contains numerous sinuous mitochondria, distinct Golgi elements, ergastoplasmic units with a tendency to ...
a cell that has some characteristics of a stem cell (i.e. it can self renew) but that has become restricted to producing differentiated cells of a particular lineage, for example neuronal cells. Proteasome a large protein multisubunit complex found in the cytoplasm that is responsible for the...
Animal cells are eukaryotic cells surrounded by a plasma membrane with a membrane-bound nucleus and a fluid cytoplasm. These cells belong to the kingdom Animalia and do not possess cell walls like plant cells.Answer and Explanation: Theodor Schwann, an anatomist, and physiologist proved that all ...
Which cell organelle contains the most different enzymes? Choose the correct cell type: prokaryote, eukaryote, or both. "Has organelles" A.) Prokaryote B.) Eukaryote C.) Both prokaryotes and eukaryotes Which of the following ...
Each individual nucleus contains several hundreds to thousands of NPCs, but their precise number and density changes depending on phases of the cell cycle and cell types (Weberruss and Antonin, 2016). For instance, the number of NPCs almost doubles during interphase in dividing cells, a process...
The optical microscope has revolutionized biology since at least the 17th Century. Since then, it has progressed from a largely observational tool to a powerful bioanalytical platform. However, realizing its full potential to study live specimens is hind
persistence, in which small subpopulations of bacteria (for E. coli ca. 0.001% of logarithimically growing cells, up to 0.1% of stationary cells189) enter into what appears to be a state of dormancy, when the cells become highly tolerant to antibiotics, if not actually resistant to them....
Membrane bound space in the cytoplasm of cells used for the temporary storage of materials. Lysosome Organelles that contain digestive enzymes; digest excess or worn out organelles; food particles, and engulfed viruses or bacteria 最好的學習方式。免費註冊。
This apparently has no effect on its phenotype, but as it contains no super-suppressor, such an effect might not be detectable. If it has a similar mutation, it could not be " suppressive" of the mutant cytoplasm. The second possibility icsytthoaptliatsims nfortommutthanet"innothremsaalm"...
multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system. 其细胞可分为组织和器官的并通常有消化腔和神经系统的多细胞动物。 2. animal pole: The portion of an egg opposite the vegetal pole that contains the nucleus and most of the ...