Cell structure GapFill

Eukaryotic cells and prokaryotic cells share some of the same features, including:

In addition to the components listed above, a eukaryotic cell is likely to have several  endocrinewalledphotosyntheticmembrane-bound organelles, such as mitochondria, chloroplasts, Golgi apparatus and endoplasmic reticulum, which is categorised as  hard or softflexible or inflexiblesmooth or roughshiny or dull, depending on whether it contains ribosomes, as well as  graticulesa cytoskeletona vacuolecilia in order to move these components around the cell. Prokaryotes may also contain one or more  vacuolesvesiclesnucleiplasmids, a secondary source of genetic material, and  Golgi vesiclesa plasmidspindlesflagella for locomotion (which may also be present in some eukaryotes but are less common).

Microscopes are useful tools for studying cells and their contents. Light microscopes are cheaper and easier to use than electron microscopes, but their  magnificationresolutiondistributioncolour is not as good, so images are not very sharp. Specimens are placed on slides onto the  graticulefocusing knobstagelaser and viewed using the eyepiece lens.  Wax distortionDifferential stainingLaser scanningGraticule division can be used to identify various features of the specimens, and their true size can be calculated by dividing the image size by the  graticule scaleprecisionresolutionmagnification. Electron microscopes can achieve much greater magnifications but have several limitations, including the fact that they cannot be used to view  livecolouredthree-dimensionalhydrophobic specimens.