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40 Cards in this Set

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The smallest unit that can perform all the processes necessary for life.
Cell
The first person to describe cells.
Robert Hooke
All organisms are made of one of more cell
First part of the cell theory
The cell is the basic unit of all living things.
Second part of the cell theory.
All cells come from existing cells.
Third part of the cell theory
Cells take in food and get rid of wastes through their outer surface. More materials pass through its outer surface.
Why a cell is so small
A protective layer that covers the cell's surface and acts like a barrier
Cell membrane
Fluid inside of a cell
Cytoplasm
Structures that perform specific functions within the cell
Organelles
The genetic material that carries information needed to make new cells and new organisms.
DNA
Single-celled organisms that do not have a nucleus or membrane-bound organelles.
Prokaryotes
Tiny, round organelles made of protein and other material
Ribosomes
The smallest cells known
Bacteria
Organisms made of eukaryotic cells
Eukaryotes
"many cells"
Multicellular
A rigid structure that gives support to a cell
Cell Wall
Cellulose
A complex sugar made to make cell walls
A protective barrier that encloses the cell, which seperates the cell from its environment.
Cell Membrane
Controls the movement of materials into and out of the cell
Proteins and Lipids
A web of proteins in the cytoplasm. It keeps the cell's membranes from collapsing, as well as helping some cells move.
Cytoskeleton
A large organelle in a eukaryotic cell which contains the cell's DNA.
Nucleus
Controls the chemical reactions in a cell, and are made of amino acids.
Proteins
Organelles that make proteins
Ribosomes
A sytem of folded membranes in which proteins, lipids, and other materials are made.
Endoplasmic Reticulum (ER)
Organelle in which sugar is broken down to produce energy
Mitochondrion
Energy released by mitochondria is stored in this substance
ATP
Organelles in plant and algae cells in which photosynthesis takes place
Chloroplasts
The organelle that packages and distributes proteins
Gogli Complex
A small sac that surrounds material to be moved into or out of a cell
Vesicle
Vesicles that are responsible for digestion inside a cell. They contain digestive enzymes. They destory work-out or damaged organelles, get rid of waste materials, and protect the cell from foreign invaders
Lysosomes
Larger size, longer life, and specialization in cells
The benefits of being multicellular
A group of cells that work together to perform a specific job
Tissue
Nerve tissue, muscle tissue, connective tissue, and protective tissue
Four basic types of tissue animals have
Transport tissue, protective tissue, and ground tissue
Three types of tissue plants have
A structure that is made up of two or more tissues working together to perform a specific function
Organ
A group of organs working together to perform a particular function
Organ system
Anthing that can perform life processes by itself
Organism
An organism made of a single cell
Unicellular
The arrangement of parts in an organism
Structure
The job a part in an organism does
Function