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21 Cards in this Set
- Front
- Back
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In the Eukaryotic flagella, the fibers that slide past one another due to the activity of dynein proteins are
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Microtubules
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Many cell organelles, most notably the nucleus, are anchored by ____________ which are assembled from a diverse class of proteins.
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Intermediate Filaments
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centrosomes are sites where protein diners assemble into_________.
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Microtubules
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The only cytoskeleton fibers not associated with intracellular movement or whole cell locomotion are the __________
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Intermediate filaments
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During muscle contractions, myosin motor proteins move across tracks of_________
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Microfilaments
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Primary
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The structure is the sequence of amino acids in a protein.
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Secondary
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The structure describes the alpha-helices and beta sheets that are formed by hydrogen bonding between backbone atoms located near each other in the polypeptide chain
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Tertiary
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The structure is achieved when a protein folds into a compact three dimensional shape stabilized by interactions between side chain R groups of amino acids.
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Quaternary
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The structure is the result of two or more protein subunits assembling to form a larger biologically active protein complex.
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Proteins are polymers of _____
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Amino Acid
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What type of bond joins the monomers in a protein's primary structure?
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Peptides
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The secondary structure of a protein results from _____
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Hydrogen Bonds |
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Tertiary structure is NOT directly dependent on __________
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Peptide bonds
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_____ are surfaces appendages that allow a bacterium to stick to a surface.
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Fimbriae
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What is the function of a bacterium's capsule?
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Protection
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Where is a bacterial cell's DNA found
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Nucleoid region
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In the bacterium where are the proteins synthesized ?
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Ribosomes
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What is the given name to the rigid structure, found outside the plasma membrane, that surrounds and supports the bacterial cell?
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Cell wall
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Plasma membrane
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The________ is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.
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Which organelle plays a big role in intracellular digestion?
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lysosome
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Endocytosis moves materials______ a cell via____
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membranous vesicles
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