Top new questions this week:
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Carbon has two stable isotopes, C-12 and C-13. Since they both have the same electronic structure they can both make up the same molecules, but presumably they may perform different functions in ...
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I have a small freshwater aquarium at home with only some aquatic plants at the moment. In the summer, I put some mud and sand from a local pond into the tank. At some point, I noticed a strange ...
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When I visit the Wikispecies page for Synapturanus zombie, it tells me where the holotype is, as does the paper which describes the species. But on visiting the page for Quercus gambelii, the holotype ...
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Background
Gravity incubators rely on natural convection for heat distribution. There is no fan or blower system, and the heat rises from the heating element at the bottom of the incubator.
https://...
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In my biochemistry textbook "Harper's illustrated biochemistry" it is written that
"Coenzymes serve as recyclable shuttles that transport many
substrates from one point within the cell ...
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Greatest hits from previous weeks:
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I have noticed that some of my sporadic gray hairs are gray at the tip side but oddly, not near the roots. Some are even only gray in the middle. I find all of this very counter intuitive, and I ...
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I'm sure many of you have experienced this - you scratch your back or brush your hand over your arm and find a ridiculously long thin white hair, sometimes as long as 3 or 4 inches. I know a few ...
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I was wondering what organelles are in an onion cell, because, based on the labs we are doing in my biology class, I only saw a nucleus and cell wall. My friends and brother say there are all the ...
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I have learned (probably in high school?) that hairs turning white is caused by the part of the folicle which produces the pigment dying and being replaced by an air bubble. This sounds very ...
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There was question about what causes "morning wood." It was answered that the erection in the morning is caused by decline of norepinephrine during REM sleep. Which in part allows to prevent ...
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If I squash an insect and it produces red "juice", does it always mean it is a blood-sucking type of insect? Or do some insects have red "juice" themselves, so the color is red on its own and not ...
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If the extracellular potassium concentration surrounding a myocyte increases, then the potassium gradient accross the cell membrane decreases, and therefore the resting membrane potential will become ...
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