During telophase, when new daughter cells form how do they "know" what type of cell they will become?
During mitosis, where do the organelles go as the process is occurring?
Why is it that a graph representing enzyme activity for pH is drawn in most textbooks as a perfect bell curve graph vs. a temperature graph, which tends to show a quicker denaturing of enzyme in small increments of temperature change? I would like to know what is happening to the enzyme at the molecular level.
Is a virus a living organism?
How do biochemists determine which metal ion is the native cofactor in vivo for a protein? Given that experimental techniques, say X-ray crystallography, involve addition of ionic solutions during protein isolation and purification, isn't there a possibility that the natural cofactor will be replaced by a “wrong” metal?
How do scientists isolate and identify the proteins produced by a particular type of cell?
Why are polysaccharides insoluble while their monomers or their disaccaride units are soluble when dissolved separately?
What is the difference between a stem cell from an 8-celled embryo and a cell from the inner cell mass of a blastocyst? I know the inner blastocyst cells cannot develop into a placenta, but otherwise, are both types of cells totipotent?
How does ethanol dissolve phospholipids in the cell membrane? Is it due to like dissolves, like, as both ethanol and phospholipids have polar parts and nonpolar hydrocarbon chains? Or is it due to ethanol affecting the polarity of the water, and so the hydrophobic interactions between the phospholipids and
the aqueous solution are no longer maintained and the integrity of the membrane decreases? Does the polar hydroxyl group of the alcohol interact with the polar head of the phospholipids?
When a molecule gets attached to a receptor, how does it then get dislodged? For example, take odor molecules in the nasal pathway; how do the receptors there "reset" for the next round of odor molecules?