Quick

dna and rna are both
1. made up of nucleotides and carry molecules from one end of a cell to another
2. monomers of protein molecules that provide structure to a cell’s nuclear membrane
3. protein molecules that carry the unique genetic information of an organism
4. molecules that contain genetic information and are made up of nucleotides

Cells a and b are the same size and shape, but cell a is metabolically quiet and cell b is actively consuming oxygen. oxygen will diffuse more quickly into cell because . b the oxygen molecules inside cell b have a higher kinetic energy b. a its membrane transport proteins will not be saturated c. a the diffusion gradient there is shallowerd. b the diffusion gradient there is steeper