¿Qué relación estructural existe entre el receptor celular y la señal o mensajero? ¿Cuál es la diferencia entre los mensajeros que tienen receptores de membrana y aquellos que tienen receptores intracelulares?

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.

answer///malignant melanoma;