Cell membrane A selectively permeable boundary surrounding the cell which allows some substances to enter and leave the cell while preventing others. Nuclear membrane Surrounds nucleus.

The trillions of cells that make up our skeleton age too, and some change in ways that weaken the very structure of our ... stiffening and altered plasma membrane viscoelasticity undermine their ...

Scientists apply principles of math and physics to unravel the mystery of how the endoplasmic reticulum, an organelle vital ...

Non-reciprocal interactions between particles enable the regulation of dynamic states. Most systems, whether companies, ...

Fifty years since its discovery, scientists have finally worked out how a molecular machine found in mitochondria allows us ...

We know each of the proteins that exist in our cells, but how they fit together to then carry out the function of a cell still remains largely unknown across cell types," said Leah Schaffer ...

The USS Nimitz’s journey to Guam leaves America’s oldest nuclear-powered carrier alone in the Indo-Pacific, leaving a noticeable gap in a strong U.S. naval presence in this strategically ...

Animal cells are usually between 10 and 30 micrometers while plant cells are between 10 and 100 micrometers. Animal cells do not have a cell wall. Instead, they have a cell membrane. However ...

What Is the Nervous System? Your nervous system is your body's main communication system. It sends messages from your brain to the rest of your body and helps you respond to changes inside and ...