Cells in the Real World

One last bit about mitochondria (we promise!). In addition to making ATP so that our cells can function, mitochondria also let off a lot of heat. Most of the energy from that molecule of glucose—...

Imagine for a moment that one of your siblings needs a new kidney. If you don't have any siblings, pretend you do, or use your imaginary friend Drop Dead Fred. Often, when something like this happe...

Every year around the world, billions of dollars' worth of crops are damaged by tiny little roundworms called nematodes. Remember when SpongeBob lost his pineapple home to nematodes? Because the im...