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Parts of the Cell- Bozemanbiology - Kerri M.
N/A
29
Biology
10th Grade
04/13/2012

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Term
Plasma membrane
Definition
Membrane that bounds all cells
Term
Chromosomes
Definition
Carry genes made of DNA in all cells
Term
Ribosomes
Definition
Eukarotes, polypeptide (protein) synthesis
Term
Cytoplasm
Definition
Eukaryotic-entire region between the nucleus and the plasma membrane
Prokaryotic-interior of cell
Term
Nucleoid
Definition
Region that houses DNA of prokaryotic cell
Term
Flagella
Definition
Surface projections on prokaryotes that help propel cell through liquid environment
Term
Organelles
Definition
Membrane-bounded structures in the cytoplasm of eukaryotic cells that perform specific functions
Term
Nucleus
Definition
Eukaryotes, DNA synthesis, RNA synthesis, assembly of ribosomal subunits
Term
Chromatin
Definition
Complex of proteins and DNA in eukaryotic chromosomes
Term
Nuclear envelope
Definition
Double membrane perforated with protein-lined pores that encloses the nucleus and controls the flow of materials into and out of the nucleus
Term
Nucleolus
Definition
Structure in nucleus where rRNA is synthesized according to instructions in DNA
Term
Vesicles
Definition
Sacs made of membrane that transfer membrane segments
Term
Endoplasmic reticulum
Definition
Extensive network of flattened sacs and tubules
Term
Golgi apparatus
Definition
Eukarotes, modification and transport of macromolecules, formation of lysosomes and transport vesicles
Term
Lysosome
Definition
Animal cells and some protists, digestion of food, bacteria, cell's damaged organelles/macromolecule for recycling
Term
Central vacuole
Definition
Eukaryotes, digestion, storage of chemicals, cell enlargement, water balance
Term
Smooth endoplasmic reticulum
Definition
Eukaryotes, lacks attached ribosomes, lipid synthesis, detoxification in liver, calcium ion storage
Term
Rough endoplasmic reticulum
Definition
Eukaryotes, has attached ribosomes; synthesis of membrane lipids and proteins, secretory proteins, hydrolytic enzymes; formation of transport vesicles
Term
Peroxisome
Definition
Eukaryotes, diverse metabolic processes, breakdown of H2O2 by-product
Term
Mitochondria
Definition
Eukarotes, conversion of chemical energy of food to ATP
Term
Intermembrane space
Definition
Narrow region between inner and outer membranes in mitochonrion
Term
Mitochondrial matrix
Definition
Internal compartment of mitochondrion that contains mitochondrial DNA, ribosomes, and enzymes
Term
Chloroplasts
Definition
Photosynthesizing eukaryotes (plants and some protists), conversion of light energy to chemical energy of sugars
Term
Stroma
Definition
Thick fluid in chloroplast that contains the chloroplast DNA, ribosomes, and enzymes
Term
Thylakoids
Definition
Network of interconnected sacs inside chloroplast (stack=granum)
Term
Extracellular matrix
Definition
Animals, binding of cells in tissues, surface protection, regulation of cellular activities
Term
Cytoskeleton
Definition
Eukaryotes, maintenance of cell shape, anchorage for organelles, movement of organelles w/i cells, cell movement, mechanical transmission of signals in cell
Term
Cell junctions
Definition
Communication between cells, binding of cells in tissue
Term
Cell walls
Definition
Plants, fungi, some protists; maintenance of cell shape and skeletal support; surface protection; binding of cells in tissues
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