Cells Test Review Sheet

The process by which molecules of a substance move from areas of higher concentration to areas of lower concentration.

The movement of molecules from high concentration to low concentration through the cell membrane.

Movement of molecules through the cell membrane using energy; usually from low concentration to high concentration

Allows materials to pass through the membrane

A cell membrane that only allows certain materials to pass through and restricts other materials

The process in which 1 cell divides into 2 cells;each daughter cell is identical to the parent cell

Step where cell is performing all of its life functions; chromosomes aren't visible; at the end of the phase, chromosomes are duplicated

Process in which the nucleus of the cell divides into 2 nuclei& the formation of 2 new daughter cells begins

When cell division begins, chromosomes become visible; spindle fibers form; nuclear membrane breaks down; nucleolus disappears, centrioles move to opposite sides of the cell

Chromosomes attach to spindle fibers by centromere & chromosomes line up in the middle of the cell

Centrfomeres split; chromatids split to form single chromosomes & chromosomes move to opposite sides of the cell

Chromosomes uncoil & lose threadlike appearance; nuclear membrane forms; nucleoli appear; mitosis is complete

In animal cells , the cell membrane moves inward pinching the cell in & dividing the cytoplasm into 2 equal parts.

They both move materials somewhere else.

Diffusion doesn't use energy while active transport does & diffusion moves materials from high concentration to low concentration while active transport moves substances from low to high concentration