Am not sure can any one help me Which is a function of a protein macromolecule?
O A. Providing leaves with waterproofing
B. Transporting other molecules in the body
O C. Insulating organs in the body from harm
O D. Providing codes for building organs

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.