Cell Biology Concepts

Front

Organisms that contain a true nucleus and membrane bound organelles.

Back

Eukaryote

Front

The central membrane bound organelle that manages cellular functions and contains DNA.

Back

Nucleus

Front

Organisms that do not contain a membrane bound nucleus.

Back

Prokaryote

Front

The basic unit of all organisms.

Back

Cell

Front

Structural model of the plasma membrane where molecules are free to move sideways within the membrane.

Back

Fluid mosaic model

Front

The idea that (1) all organisms are composed of 1 or more cells, (2) the cell is the basic unit of structure and organization of organisms and, (3) all cells come from preexisting cells.

Back

Cell theory

Front

Feature of the plasma membrane that maintains homeostasis within the cell by allowing some molecules into the cell while keeping others out.

Back

Selective permeability

Front

Proteins that span the plasma membrane creating a selectively permeable membrane that regulates which molecules enter and leave the cell.

Back

Transport proteins

Front

An instrument that uses light and a series of lenses to magnify objects in steps; can magnify up to 1 500 times its original size.

Back

Compound light microscope

Front

Uses a beam of electrons instead of light to magnify structures up to 500 000 times actual size.

Back

Electron microscope