Fats are important nutrients because they

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

Which characteristics are typical of a human population in the postindustrial stage?

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.