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