Solar cells need the semiconducting variety.
Brain cells need insulin, Dr. Craft said.
At this stage the dividing cells need to be checked for genetic stability.
Because the cells need energy, the robo-ray swims in a tank of warm water, salt and glucose.
But stem cells need to divide to do their job, and the division process invites random mutations — which drive cancer.
Stacked arrays of dozens of batteries and cells need to be individually monitored and precisely fine-tuned, he said.
Cancer cells need to reactivate the telomerase gene, or their telomeres will get steadily shorter, forcing them into senescence.
Both Erbitux and Avastin are monoclonal antibodies, proteins engineered to home in on molecules that cancer cells need to grow.
By the same token, cells need their looping lanyards of genes and would grow as dull as hairballs without them.
To undertake the migrations that form an organism from an embryo, cells need to know where to go.
All cells need glucose, but as Peat correctly explained, cancer cells metabolise glucose differently to regular cells and grow faster, so need more.
