a Prokaryotes are single-cell organisms, such as bacteria, that have no real nucleus and do not contain membrane-enclosed organelles. Eukaryotes, such as algae, fungi and protozoa, have a real nucleus and membrane-enclosed organelles. Viruses are tiny, complex molecules composed of protein and nu...
Most prokaryotes are small, single-celled organisms that have a relatively simple structure. Prokaryotic cells are surrounded by a plasma membrane, but theyhave no internal membrane-bound organelles within their cytoplasm. Can a cell survive without cytoplasm? No, a cell cannot survive, if its cyto...
Do all prokaryotes have flagella? All prokaryotic cells are encased by a cell wall. ... Flagella and some pili areused for locomotion, fimbriae help the cell stick to a surface, and sex pili are used for DNA exchange. Most prokaryotic cells have a single circular chromosome. They may also...
Prokaryotes are set apart by their lower level of complexity. They are all microscopic, though not necessarily unicellular. They are divided into the domainsarchaeaandbacteria,but the vast majority of known prokaryote species are bacteria, which have been on Earth for around 3.5 billion years. Prok...
All cells also have ribosomes. In prokaryotes, these float freely in the cytoplasm; in eukaryotes they are typically bound to the endoplasmic reticulum. Ribosomes are often classified as a type of organelle, but in some schemes they do not qualify as such because they lack a membrane. Not ...
How can prokaryotic cells be smaller than eukaryotic cells and still carry on all the functions of life? Why are inclusion bodies encapsulated in prokaryotes? Why are the cells in the stratum corneum dead? Why does cellular respiration occur?
Do all organisms have introns? How does protein synthesis differ between prokaryotes and eukaryotes? The DNA replication enzyme that most closely resembles RNA polymerase is: a) DNA polymerase I. b) DNA polymerase III. c) primase. d) telomerase. e) helicase. ...
Silvius, J.R., Mak, N. and McElhaney, R.N. 11980) Why do prokaryotes regulate membrane lipid fluidity? In: Membrane Fluidity: Biophysical Techniques and Cellular Regulation (Kates, M. and Kuksis, A., Eds.), pp. 213-222. Humana Press, Clifton, NJ....
In prokaryotes, transfer of DNA from a donor cell to a recipient cell is mediated by direct cell–cell contact. CONSPECIFICS Members of the same species. FITNESS A measure of the capacity of an organism to survive and reproduce. HOLLIDAY JUNCTIONS ...
Prokaryotes are simple, small (1-10 µ in size) and primitive type of cells. Prokaryotic cells consist of no 'well defined nucleus' and the genetic material is found scattered within the cytoplasm of cell, called nucleoid. ... Since,prokaryotes do not have nucleus, they don't have nucleo...