Human testes are masters of mass production, spitting out sperm at a rate of 200 million per day. But that doesn’t mean the process is fast–it takes 64 days to make a sperm. The organ keeps the count high with an assembly-line anatomy that scales up sperm development from a trickle to a flood.
For the first time ever, molecular biologists have filmed the death of a human white blood cell. But the video shows something else, too. These integral components of our immune system do not go quietly into that good night. Rather, they go down alerting their neighbors to the presence of potential pathogens.
The antioxidant resveratrol, which is found in red wine and other foods like nuts and soy, is known for its ability to decrease incidence of heart disease and other illnesses, leading some to call it the "elixir of youth." Researchers at the Scripps Research Institute now have an explanation for how it works.
Biologists at University College London say they now know why cancerous cells group together and spread to different parts of the body. And shockingly, it appears that the malignant cells are migrating by literally chasing healthy cells that are trying to get away.
To help herself study, biology student Biol Jerk draws sweet little comics explaining the differences between the various cells that make up the epidermis, the distinctions between schwann cells and oligodendrocytes, and what the Ran cycle has in common with clubbing.
This photograph may look like an artifact from an alien world (one with similar taste in architecture to the Egyptians), but it actual depicts a cell living in a pyramid-shaped cage, one that helps us view cells in something closer to their natural environment.
Molecular biology professor and artist David Goodsell has no trouble finding art in the human body. His hand-drawn watercolor illustrations explode with color while offering his visual interpretation of bacteria, viruses, and human cells.Cytochrome C in Apoptosis Cytotoxic T Cell DNA Polymerase Hemostasis Hepatitis B