Answer:
It allows water and other molecules to enter and exit the system.
Explanation:
Plants have both a cell membrane and a cell wall. These allow needed molecules, such as water, to enter the cell. Both the cell wall and the cell membrane are semi permeable, which means that they choose what can enter and leave the cell. Molecules like water and other useful things to the cell enter it, and things such as waste leave the cell through the membrane and wall.
Remember that only plant cells have cell walls. Animal cells only have a cell membrane. But both the wall and membrane have the same purpose.
You are why you eat is a phrase that describes how eating affects your physical appearance and weight in general.
It motivates us to eat well and pay attention to what we eat.
It also discusses how, in order to appear fit, we must eat healthily.
Chemically speaking, enzymes are composed of chains of amino acids, and they are considered to be a type of protein.
Answer:
This question is asking to state what is being defined. The term defined in the question is called DIFFUSION
Explanation:
Diffusion is the movement of particles/fluids from a region where they are highly concentrated to the region where they are less in concentration across a space. Diffusion is a form of passive transport i.e does not require energy input to occur. This is because the movement occurs down a concentration gradient.
A concentration gradient i.e difference in concentration occurs when there is an uneven amount/concentration of particles in two regions. Hence, movement occurs naturally to the direction where the particles are less concentrated from where they are more concentrated.
The use and application of living things and biological processes is known as biotechnology.
