How do animal cells use nutrients to provide energy for growth and cell division? How do organelles replicate during cell division? List three similarities and three differences between plant and animal cells. How is cell the division machinery of chytrids different from that of other fungi?
How are cells and organelles related? What happens before a cell divides? Why do cells divide? How does the cell differentiation process work? How does cytokinesis occur in a dividing animal cell? What are the 2 major parts of the cell?
Humans, animals and plants have cells with genetic information contained in a type of membrane called a nucleus. These types of cells, called eukaryotic cells, have specialized organelles, each with a unique job to keep the cell working and healthy. Bacteria, however, lack a nucleus, and ...
Humans, animals and plants have cells with genetic information contained in a type of membrane called a nucleus. These types of cells, called eukaryotic cells, have specialized organelles, each with a unique job to keep the cell working and healthy. Bacteria, however, lack a nucleus, and ...
Cell proliferation describes the ability of cells to reproduce via cell division, or cytokinesis. Since only healthy cells will divide and proliferate, while damaged, dying, or dead cells do not, researchers measure the increase in cell count in a population through various ...
the mitotic phases, sister chromatids line up in the middle of the cell. Then, they're pulled apart by organelles and sent to opposite poles where the nuclear envelope reforms around the genetic material. Lastly, the animal cell membrane is pinched down the center to separate the two cells....
Often, however, no specific organelles appear to be involved and gliding may be attributable to the slime covering of some bacteria or the streaming of outer membrane lipids of others (e.g. Cytophaga (Moat, 1979)) or to other mechanisms currently being elucidated. The spiral-shaped Spiroplasma...
The well-being of living cells requires specialized squads of proteins that maintain order. Degraders chew up worn-out proteins, recyclers wrap up damaged organelles, and-most importantly-DNA repair crews restitch anything that resembles a broken chromosome. If repair is impossible, the crew foreman...
cells in the proximal tubules of the kidney are mitotically quiescent — they do not divide to create new cells. In cases of mild injury or disease, kidney cells do have limited repair capabilities, and stem cells in the kidney can form new kidney cells, but only up to a point, said ...
Muscle is somewhat unique because muscle cells divide only rarely. Like brain and heart cells, muscle cells wear out and aren't easily replaced. Functions in all three of those tissues are known to decline with age. "Unlike liver, muscle is not readily regrown. The cells can accumulate a ...