any type of passive transport in which molecules in a HIGH concentration move to an area of a LOW concentration.
the diffusion of water.
the state in which the concentration of molecules is EQUAL in both areas.
a type of transport in which energy is required for the transportation of molecules to move from a LOW concentration to a HIGH concentration.
the movement through a membrane, doesn't require any energy to move molecules from a HIGH concentration to a LOW concentration.
the act of taking materials into a cell by surrounding it with the cell membrane.
the act of releasing the contents of a vesicle.
Discovered cells for the first time in 1665 while looking at pieces of cork through a compound light microscope.
In 1838, he said that cells are the basic unit of organization in plants.
In 1839, he said that cells are the basic unit of organization in animals.
In 1855, he said that all cells come from other cells.
In eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes. All of the organelles duplicate.
a part of the cell's life cycle in which the cell grows, the DNA is copied, and the organelles duplicate.
a part of the cell's life cycle in which the nuclear membrane disappears and the chromosomes form
a part of the cell's life cycle in which the chromosomes line up in the center of the cell and the spindle fibers form
the opposite of the prophase;the nuclear membrane re-forms, the chromosomes un-coil, and the cell has two nuclei
the chromosome pairs separate and move toward opposite poles