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14 Cards in this Set

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Animal Cells
-have a cell membrane, but no cell wall
-don't contain plastids (storage organelles)
-have centriole
Plant Cells
-have a cell wall
-contain plastids
~chloroplasts
~chromoplasts
~leukaplats
-don't have centrioles
-contain very large vacuoles
The Nucleus
-the brain of the cell
-contains DNA the form large structures called chromosomes
-surrounded by the nuclear envelope
Nucleolus
-small region in the nucleus that contains RNA and makes ribosomes
The Mitochondria
-powerhouse
-change chemical energy into useable energy for cell
-contains two membranes
-outer surrounds organelle
-inner has many folds to increase surface area
The Chloroplasts
-where photosynthesis occurs
-surrounded by two membranes
-contains a 3rd membrane where radiant energy is changed into chemical energy
Endoplasmic Reticulum
-transports material through the cell
-two types- smooth and rough
-smooth-stores special enzymes and chemicals
-rough- has ribosomes stuck to it
-proteins are released after being made a ribosome
Ribosomes
-protein factors
-somposed of protein and RNA
-some attatched to ER and some free floating in cytoplasm
Golgi Apparatus
-it modifies, collects, packages, and distributes molecules made at one location of the cell and used at another
-UPS
Lysosomes
-contain chemicals and enzymes necessary for digesting materials in the cell
-suicide sac
Vacuoles
-stores materials such as water, salts, rpoteins, and carbohydrates
Cytoskeleton
-composed of filaments and fibers that support for cell shape and help more organelles form centrioles
-centrioles- special role in cell division
-have cilia- a short, threadlike structure that help in movement
-flagella- longer whiplike structures that help unicellular organisms move about
-Microfilaments- long, thin fiber that function in movement of cytoplasm within cell called cytoplasmic streaming
Cell Membrane
-regulates what enters and leaves the cell
-composed of lipids bilayer, proteins, and carbohydrate
-some proteins act as channels and pumps
-carbohydrates act as chemical identification allowing cells to communicate
Cell Wall
Helps to protect and support the cell
-very porous- water, oxygen, carbon dioxide can pass through easily
-wall formation- 2 cells meet and form a layer compose of pectin. Each cell forms layer composed of cellulose. Plants with woody stems have another layer composed of cellulos and ligning