An example of matter here is B. the light bulb.
Light bulbs are made mostly of glass and wires. Glass and wires have mass and take up space.
This occurs during protein synthesis. This is because the cell continues to protein synthesise, therefore adding to the amount of cells.
I hope this helps.
Answer: The membrane is selectively permeable because substances do not cross it indiscriminately. Some molecules, such as hydrocarbons and oxygen can cross the membrane. Many large molecules (such as glucose and other sugars) cannot. Molecules of oxygen and carbon dioxide have no charge and pass through by simple diffusion. Polar substances, with the exception of water, present problems for the membrane. While some polar molecules connect easily with the outside of a cell, they cannot readily pass through the lipid core of the plasma membrane.
Explanation:
It is true because the dependent variable is the one that changes as per the independent variable, which is on the x-axis.