lecture 7 - cell part b Flashcards
where is the nucleolus
in the nucleus
what is the function of the nucleolus
production and assembly of ribosome components
does the nucleolus have a membrane
no, seen as dark spot in the nucleus
what is the function of ribosomes
protein synthesis
what are the two locations of ribosomes
free floating in cytoplasm
attached to rough ER
where are the proteins made by free floating ribosomes going to be used
used in the cell
what is an example of proteins made by free floating ribosomes
cytoskeleton fibers
what are the proteins made by RER ribosomes used for
stored and released when needed
example of proteins made by RER ribosomes
lysosomes enzymes
what are the three types of cytoskeleton
microtubules
intermediate filaments
microfilaments
what is the function of the cytoskeleton
support and give cells shape
can extend and contract to allow cell to change shape
characteristics of microtubules
thickest of cytoskeleton
hollow
functions of microtubules
give rigidity to cell
transport
how do microtubules aid in transport
in cell: using atp moving vesicles across cell on the microtubules
cilia and flagella for cell mobility
chromosome transportation during cell division
characteristics of centrosome
non membranous
pair of centrioles at a right angle from each other