Phospholipids, Cholesterol, Glycolipids, Proteins & Glycoproteins The cell membranes of all organisms generally have a similar structure Cell membranes contain several different types of...
Viruses Do Not Undergo Cell Division Viruses?are?non-cellular infectious particles?that straddle the boundary between ‘living’ and ‘non-living’ They are?much smaller?than?prokaryotic cells T...
Binary Fission of Prokaryotic Cells The process of cell division (binary fission) in prokaryotic cells is much simpler than mitosis in eukaryotic cells Prokaryotic cells do not possess: A nu...
Uncontrolled Cell Division & Cancer Cancers demonstrate how important it is that?cell division?is?precisely controlled, as cancers arise due to?uncontrolled mitosis Cancerous cells divid...
Maths Skill: Mitotic Index The mitotic index is the?proportion?of cells (in a group of cells or a sample of tissue) that are?undergoing mitosis The mitotic index can be calculated using the ...
Recognising the Stages of Mitosis from Images Cells undergoing different stages of the cell cycle can be identified using photomicrographs taken from microscope slides Cells undergoing certa...
Cytokinesis Cytokinesis Although?not regarded as a phase of mitosis, cytokinesis is an important final step in the cell cycle because during this stage the?cytoplasm?is?divides?forming two g...
Mitosis: The Stages Mitosis is the process of nuclear division by which?two genetically identical daughter nuclei?are produced that are also genetically identical to the parent cell nucleus ...
The Importance of Mitosis Mitosis is the process of nuclear division by which two genetically identical daughter nuclei are produced that are also genetically identical to the parent nucleus...
Appreciating the Process of Distinguishing Organelles When looking at a?prepared sample?(e.g. a cell or a group of cells) under a microscope, you can sometimes see things that aren’t actuall...
Cell Fractionation & Ultracentrifugation Biologists and other scientific researchers may sometimes want to study?one specific?organelle This may be to: Look at the appearance of the spec...
Magnification Calculations Magnification?is?how many times bigger?the image of a specimen observed is in comparison to the actual (real-life) size of the specimen The?magnification?(M) of an...
