C. controls what materials will move into and out of the cell
Answer:
A
Explanation:
The possible number of amino acid residues in the peptide composed entirely of alpha-helical structure and found to contain an integer number of complete turns is 36
Answer:
"A sphere with a radius of 7 meters" would have a surface area of 615.75m²
Explanation:
By using the formula of A=4πr2 you can solve for surface area, hope this isn't too confusing! round my answer as needed and <em>best of luck with your assignment!</em>
I think that both the dialysis tubing and the small intestine are selectively permeable. Which means they allow only some and not all materials to pass through; for example; glucose which is a simple molecular sugar; will pass through, however larger molecules such as starch can not pass through. A dialysis tube is a semipermeable membrane that allows molecules of certain size to get in or out, while keeping molecules above that size in. They are often used to remove impurities from preparations of proteins or other macromolecules and also to normalize pH of a preparation.