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WHAT IS A CELL?
the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body.
what are Prokaryotic cells
single-celled organisms belonging to the domains Bacteria and Archaea.
WHAT IS SELECTIVE PERMEABILITY?
the ability of the cell membrane to control the flow of substances in and out of the cell.
WHAT IS ISOTONIC SOLUTION?
the state when two solutions have equal concentration of solutes across a semipermeable membrane.
WHAT IS EXOCYTOSIS?
a process for moving large molecules out of the cell to the cell exterior.
WHAT IS CELL THEORY?
fundamental scientific theory of biology according to which cells are held to be the basic units of all living tissues.
WHAT IS THE NUCLEUS?
the membrane-enclosed organelle within a cell that contains the chromosomes.
WHAT DOES DIFFUSION DO?
helps in the movement of substances in and out of the cells.
WHAT IS HYPOTONIC SOLUTION?
a solution that has a lower concentration of solute compared to the cell.
WHAT IS THE CYTOPLASM?
the gelatinous liquid that fills the inside of a cell.
WHAT IS THE PLASMA MEMBRANE?
the membrane found in all cells that separates the interior of the cell from the outside environment.
WHAT IS THE PHOSPHOLIPID BILAYER?
two layers of phospholipids that make up the cell or plasma membrane.
WHAT IS DYNAMIC EQUILIBRIUM?
when the forward and reverse processes occur at the same rate, resulting in no observable change in the system.
WHAT IS HYPERTONIC SOLUTIONS?
ones that have a higher solute concentration than that of the cell
WHAT IS THE CYTOSKELETON?
The large network consisting of protein fibers and other molecules that gives shape and structure to cells in the body.
WHAT IS AN ORGANELLE?
a subcellular structure that has one or more specific jobs to perform in the cell.
WHAT IS A TRANSPORT PROTEIN
a protein that serves the function of moving other materials within an organism.
WHAT IS FACILITATED DIFFUSION?
a type of passive transport that uses specialized proteins, such as channel proteins and carrier proteins, to help molecules move across a cell membrane.
WHAT IS ACTIVE TRANSPORT?
the movement of molecules or ions across a cell membrane.
WHAT DO CENTRIOLES DO?
organizing microtubules that serve as the cell's skeletal system
What are Eukaryotic cells?
organisms whose cells contain a nucleus and other membrane-bound organelles.
WHAT IS THE FLUID MOSAIC MODEL?
describes the fluid and flexible nature of the cell membrane and also the components it is made from.
WHAT IS OSMOSIS?
the net movement of water across a semipermeable membrane
WHAT IS ENDOCYTOSIS?
the process by which cells take in substances from outside of the cell by engulfing them in a vesicle.
WAHT DOES THE CILIUM DO?
to move water relative to the cell in a regular movement of the cilia.