es un ácido nucleico que está formado por una sola cadena de nucleótidos, por un azúcar ribosa y se localiza en el citoplasma de la célula

thymine. in rna, thymine is replace by uracil

surface modification is a versatile tool and has been widely used in material science and engineering that has significantly facilitated the study and characterization of complex materials. at  matexcel, experienced experts in surface science can offer tailored efforts to meet the specific needs from our clients.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?