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Lecture Notes, Exam 3
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- 1Cellular structures includespecialization
different gene expression
>turn genes on/off
differs between eukaryotes and prokaryotes
>bacterium structure differs - 2describe bacterium structure>cell membrane
>SEPEPHBI
>cell wall
>ribosomes
>plasmids
>flagella(locomotion)
>nucleoid - 3main differences between pro and eukaryotes>small vs 10x the size
>single circular chromosome vs multiple, linear
>nucleoid vs nucleus
>no organelles vs organelles
>flagella move in an orbit vs undulating - 4how does surface area affect the volume, and the diffusive properties of a cellsmall cells have a better chance to diffuse properly. the larger the volume, the larger the surface area
More volume than the surface area can handle causes cell death. - 5what is the function of chromosomes? where are they located?gene carrying/single double-stranded DNA; proteins, histones
- 6ribosomesprotein synthesis sites; two subunits, large/small; ribosomal RNA/protein
- 7cytoskeletonshape, locomotion, transport, support
- 8microfilaments includeactin(protein)
intermediate filaments
microtubules
nucleus
>largest organelle
>genetic info
>nucleolus in prokaryotes carries out ribosome assemblage - 9vacuoles storeH2O Ions
- 10A molecule composed of nucleotides that is active in the synthesis of proteinsribonucleic acid(RNA)
- 11RNA's functionferrying the DNA-encoded instructions to the sites in the cell where proteins are put together; helps make ribosomes
- 12LDL vs HDLLow vs high density lipoprotein
- 13ciliaextensions of specialized nerve cells
- 14membrane-lined compartment that encloses the primary complement of DNA in eukaryotic cellsnucelus
- 15need oxygen to existaerobic
- 165 major structures within a eukaryotic cellNucleus
Organelles outside the nucleus
cytosol
cytoskeleton
plasma membrane
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- Descripción
- Lecture Notes from October 18th Class, Sessions.
- Creado por
- Sara Aragona
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