This one is perhaps the most misinterpreted postulate. Organelles like the nucleus, ribosomes and many more are present inside the cell; they are smaller in size, but vital for the existence of life. If that’s the case, shouldn’t they be the basic unit of life? Well, that’s not th...
4.6. Why does the human sperm cell have lots of mitochondria? 4.7. What is the function of the head of the sperm? 4.8. What is the probability that a human sperm cell carries an X chromosome? 5. Recommended reading 6. References 7. Authors and contributors Definition and function The spe...
Internal battery - A rechargeable battery is implanted inside the patient's abdomen. This gives a patient 30 to 40 minutes to perform certain activities, such as showering, while disconnected from the main battery pack. External battery - This battery is worn on a Velcro-belt pack around the ...
Diseases caused by trypanosomatids include leishmaniasis (Leishmania spp.), Chagas disease (Trypanosoma cruzi), and sleeping sickness (Trypanosoma brucei) that affect millions of people, especially low-income populations, being classified as neglected tr
(Biology) The smallest structural unit of an organism that is capable of independent functioning, consisting of cytoplasm, usually one nucleus, and various other organelles, all surrounded by a semipermeable cell membrane. Ceiling The inside planking of a ship's bottom and sides. Celling (Architectu...
we know relatively little about the interactions of SARS-CoV-2 with the actin cytoskeleton. Here, we describe how the actin cytoskeleton is involved in the strategies used by different viruses for entry, assembly, and egress from the host cell. We emphasize what is known and unknown about SARS...
Independently from the invasion route, glioma cells show a mesenchymal type of migration and must often cross extracellular spaces smaller than their nucleus. Specifically, glioma cells become fibroblast-like and polarized, with leading and trailing edges located at the opposite sites of the cell body...
The real impact of nanoparticles on male fertility is evaluated after a careful analysis of the available literature. The first part reviews animal models to understand the testicular biodistribution and biopersistence of nanoparticles, while the second part evaluates their in vitro and in vivo biotoxi...