In the past decade, evidence has accumulated that free Ca(2+) within the nucleus also plays an important messenger function. Here we review the mechanisms and effects of Ca(2+) signals within the nucleus. In particular, evidence is reviewed that the nucleus contains the machinery necessary for...
The NucleusNear the center of the cell is a roundish or oval-shaped nucleus. The nucleus controls the growth and division of the cell. It also contains the structures that transmit hereditary traits. Enclosed by a two-layered membrane, the nucleus contains a liquid called nucleoplasm as well ...
The nucleus contains the ___. (a) plasma membrane. (b) cytoplasm. (c) nucleoplasm. (d) organelles. The structure associated with the production of Ribosomal RNA is the [{Blank}]. A. Rough Endoplasmic Reticulum B. Free Ribosome C. Nucleolus D. Centroso...
1 Which statement describes the structure of an atom?(3)(1) The nucleus contains positively charged electrons.(2) The nucleus contains negatively charged protons.(3) The nucleus has a positive charge and is surrounded by negatively charged electrons.(4) The nucleus has a negative charge and is...
Unlike prokaryotes, however, eukaryotic cells also contain membrane-bound organelles, such like the endoplasmic reticulum, Golgi apparatus, mitochondria and chloroplasts (in the case of eukaryotic photosynthesizes). Furthermore, the eukaryotic cell has a membrane-bound nucleus....
the nucleus also contains one or two organelles-the nucleoli-that play a role in cell division.A pore-perforated sac called the nuclear envelope separates the nucleus and its contents from the cytoplasm.Small molecules can pass through the nuclear envelope ,but lager molecules such as mRNA and ...
From a microscopic point of view, the nucleus contains a neutron and Proton, neutron and Proton each and also a small magnet. 翻译结果4复制译文编辑译文朗读译文返回顶部 From a microscopic point of view, the nucleus contains the neutrons and protons, neutrons and protons and each was a tiny ma...
The cell nucleus is an organelle exclusively found in all eukaryotic-celled organisms. The cell nucleus is a membrane-bound organelle and is present and absent in various cell types such as red blood cells and white blood cells. The nucleus is structured with the following components: the ...
3. 该细胞的细胞核包含生产一头新羊所需要的全部基因。The nucleus of this cell contains all the genes needed to
If an atom contains 14 protons, it is an atom of which element? Which two particles make up the nucleus of an atom? What region of an atom contains the protons and neutrons? What element with a mass number of 100 has 56 neutrons in its nucleus?