Proteins made on "bound" (attached) ribosomes leave through the cell membrane, and other proteins will enter the cell.
Diffusion is the methods that leave cells. Diffusion also has to have cellular energy.
Substances enter and leave cells through processes such as diffusion, facilitated diffusion, active transport, and endocytosis/exocytosis. Once inside the cell, substances can become distributed within cells through diffusion, cytoplasmic streaming, vesicular transport, and interactions with organelles.
Capillaries. they have such thin walls that substances can easily diffuse through them.
Leaves
it is the cellmembrain
Cell membranes, specifically through channels and transport proteins, regulate the passage of nutrients such as sugar, oxygen, and water into cells and the removal of waste products. This selective permeability ensures that essential substances can enter the cell while harmful substances are kept out.
False
Filtration
Vitamins Minerals Water.
The cell membrane controls what substances enter and leave the cell and at what rate it also separates the inside of the cell from its surroundings keeping the contense of the cell together and concentration gradients in place and don't forget it also contains receptors which allow messages to be convayed to cells.
Substances pass through the plasma membrane, although ot is not technically an organelle.
Your white blood cells have that job.