Which statements describe how chemical formulas, such as h2o, represent compounds? check all that apply. a: they show the types of molecules that make up an atom b: they show the elements that make up a compound c: they show the 3-dimensional shape of a molecule d: they show the types of atoms that make up a molecule c: they show the number of each type of atom in a molecule.

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

For their summer holiday, jane and her family are visiting places surrounding the mediterranean sea. which type of biome is jane and her family visiting? a. rainforest b. shrubland c. tundra d. coniferous forest

The first amino acid of a new polypeptide chain is