Cells 1
All organisms are made of cells, all existing cells are produced by other living cells, the cell is the most basic unit of life
Cell Theory
A jellylike substance that contains dissolved molecular building blocks such as proteins, nucleic acids, minerals, and ions
Cytoplasms
Structures specialized to perform distinct processes within a cell.
Organells
The storehouse for most of the genetic information or DNA in your cells
Nucleus
Water molecules moving across a semipermeable membrane from an area of higher water concentration to an area of lower water concentration
Osmosis
Tiny organelles that link amino acids together to form proteins
Ribosomes
A flexible network of proteins that provide structural support for the cell
Cytoskeleton
Area a general name used to describe small, membrane-bound sacs that divide some materials from the rest of the cytoplasm and transport this material from place to place within the cell
Vesicles
Supply energy to the cell
Mitochondria
Movement of molecules in a gas from a region of higher concentration to a region of lower concentration.
Diffusion
Prokaryotic Cells
Do not have a nucleus or other membrane-bound organelles
An interconnected network of thin folded membranes
Endoplasmic Reticulum
Has a nucleus or other membrane-bound organelles
Eukaryote Cells
A fluid-filled sac used for the storage of materials needed by a cell
Vacuole
Allows some, but not all, materials to cross
Selective Permeability
Membrane-bound organelles that contain enzymes
Lysosomes
Cylinder-shaped organelles made of short microtubules arranged in a circle
Centrioles
Consists of closely layered stacks of membrane-enclosed spaces that process, sort, and deliver proteins
Golgi Apparatus
A rigid layer that gives protection, support, and shape to the cell
Cell Wall
Protein that detects a signal molecule and performs an action in response
Receptor
Organelles that carry out photosynthesis
Chloroplast
Forms a boundary between a cell and the outside environment and controls the passage of materials into and out of a cell
Cell Membrane
Movement of molecules across the cell membrane without energy input from the cell
Passive Transport
Describes the arrangement of the molecules that make up a cell membrane
Fluid Mosaic Model
Molecule composed of three basic parts: a charged phosphate group, Glycerol, and two fatty acid chains
Phospholipid