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MICR33
Chapter 4- Eukaryotes
28
Microbiology
Not Applicable
06/26/2012

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Term
Flagella and cilia
Definition
Have central and doublet micro tubules inside (9 pairs and 2 lone central tubules).
Plasma membrane outside of flagellum or cilium.
Term
Cell wall
Definition
On plants, algae, and fungi.
Contain carbohydrates
Term
Cellulose walls
Definition
Plants and algae
Term
Chitin walls
Definition
Most fungi- including yeasts
Term
Glucan and mannan
Definition
In Yeast cells
Term
Glycocalyx
Definition
-carbohydrates extending from animal plasma membrane
-bonded to proteins and lipids in membranes
Term
Eukaryotic plasma membrane
Definition
Phospholipid bilayer, peripheral proteins, integral proteins, transmembrane proteins, sterols, and glycocalyx carbohydrates
Term
Plasma membrane (cont.)
Definition
Selective permeability allows passage of some molecules, simple diffusion, facilitated diffusion, osmosis, active transport, endocytosis
Term
Phagocytosis- no cell walls
Definition
Pseudopods extend and engulf particles
Term
Pinocytosis- no cell walls
Definition
Membrane folds inward, bringing in fluid and dissolved substances
Term
Cytoplasm
Definition
Substance surrounded/enclosed by a plasma membrane and outside nucleus
Term
Cytosol
Definition
Fluid portion of cytoplasm
Term
Cytoskeleton
Definition
Microfilaments, intermediate filaments, and microtubules. Provides support and is like a "freeway" of the cell, allowing stuff to move in cell.
Term
Cytoplasmic streaming
Definition
Movement of cytoplasm throughout cells
Term
Ribosomes
Definition
Protein synthesis.
-80S-membrane bound an attached to ER. Free in cytoplasm
-70S-in chloroplasts and mitochondria
Term
Membranous Organelles:
Nucleus
Definition
Contains chromosomes
Term
Membranous Organelles:
ER
Definition
Network with rough and smooth components with varied functions
"rough"= ribosomes attached
Term
Membranous Organelles:
Rough ER
Definition
Functions: Protein synthesis, processing and sorting of proteins, phospholipid synthesis
Term
Membranous Organelles:
Smooth ER
Definition
Functions: Phospholipid, fat, and steroid synthesis. Can bio-transform drugs and other chemicals (liver cells). Can release calcium (muscle cells)
Term
Membranous Organelles:
Golgi complex
Definition
Collection, packaging, and distribution of materials to different parts of the cell. Synthesizes cell wall components. Also modifies short chains of sugars to form glycoproteins and glycolipids with material from ER
Term
Membranous Organelles:
Mitochondrion
Definition
Cellular respiration
(mighty mitochondria, powerhouse) Energy
Term
Membranous Organelles:
Chloroplast-> plant and algae
Definition
Photosynthesis
Double membranous structure
Term
Membranous Organelles:
Peroxisome
Definition
Oxidation of fatty acid, destroys H2O2
Term
Membranous Organelles:
Lysosome
Definition
Contains digestive enzymes
Term
Membranous Organelles:
Vacuole
Definition
Brings food into cells and provides support
Term
Non-Membranous Organelles:
Centrosome
Definition
Consist of protein fibers and centrioles that are involved in mitotic spindle formation
Term
Non-Membranous Organelles:
Definition
Ribosomes, cytoskeleton, and centrosome
Term
Lynn Margulis
Definition
Endosymbiotic Theory- euks came from proks
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