Which is the best definition of diffusion? question 1 options: movement of molecules from an area of their higher concentration to an area of their lower concentration movement of water across a semipermeable membrane from an area of high water concentration to an area of lower water concentration movement of molecules from an area of their lower concentration to an area of their higher concentration movement of water across a semipermeable membrane from an area of low water concentration to an area of higher water concentration movement of a substance against its concentration through the release of energy from atp?

The answer is very simple. Diffusion is a process that produces a flow of material (molecules) from an area of higher concentration to an area of lower concentration. This process is very important because life depends on it. In our body many processes depend on it. For example, during digestion the food that has already been broken down by the digestive acids is concentrated in the stomach, then it moves down to a less concentrated area in the intestines. This example helps you to understand the behavior of matter specially in liquids and gases.

Explanation:

Now, a better explanation of this comes in the cells of every living creature. When you study the cell closer,  you will see how diffusion allows the cell to move proteins in and out of the membrane depending on the need at a particular moment.

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle