Many proteins, starches/carbohydrates, and fats to fit through cell membranes, so they must by enzymes.

Explain the side effects of cancer treatments

The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.

Mutations associated with albinism affect proteins involved in synthesis