Recent content by Chatul

Well even before elemental oxygen was available in the atmosphere, there would still be relatively high concentrations of oxygen inside the Cyanobacteria from their own photosynthesis. So they could have aerobic respiration before then. Something I just read: “An alternative suggestion [for...

I think the best way to answer this question is to look for information on diseases which block cone cell activity but not rod cell activity. Rare genetic diseases will do this. Such patients have photophobia because rods don't work well in bright light. I think visual acuity increases as light...

I like science, which is obvious if I'm on this forum. I mostly like biology but I dabble a little in everything. I like answering questions people have in introductory biology and chemistry. For my own interests, I mostly read about cellular ion channels, but I also read about integral membrane...

The classic example of an antibody-related disease is myasthenia gravis. Muscle weakness to paralysis, caused by antibodies attaching to and blocking the neuromuscular junction. Usually but not always it's caused by antibodies that bind to the acetylcholine receptor...