Look at the diagram below. phosphate base sugar what kind of molecule is represented in the diagram? o a. a fatty acid o b. a nucleotide o c. a lipid od. a carbohydrate

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