Consider the illustration of the cell cycle. what is the purpose of the areas labelled checkpoint in the cycle? all but one could apply. a) to encourage apoptosis b) to find and repair errors c) to prevent mutations of the dna d) to avoid the development of cancer

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.