These make up the bulk of the cell, and, as we'll see ... (This relative inefficiency compared to that of fossil fuels is part of the reason why solar cells still only account for less than ...

Prometaphase is an extremely dynamic part of the cell cycle. Microtubules rapidly assemble and disassemble as they grow out of the centrosomes, seeking out attachment sites at chromosome ...

and the parts that stick out are hydrophilic (Figure 2). At physiological temperatures, cell membranes are fluid; at cooler temperatures, they become gel-like. Scientists who model membrane ...

Mitochondria close mitochondriaTiny parts of cells floating in the cytoplasm where energy is released from glucose. The glucose comes from food. This is how you make a model plant cell.

We also use the term for things that are not living, like cell phones. The life cycle for anything you buy includes getting the materials from the earth, making the parts, delivering the product from ...