structures and organelles
DESCRIPTION
Structures and Organelles. 7.3. Cytoplasm and Cytoskeleton. Cytoplasm -semifluid material prokaryotes- Chemical process occur eukaryotes- Where organelles are found Cytoskeleton - Support “net” for organelles microtubules and microfilaments. The Nucleus. The “manager” - PowerPoint PPT PresentationTRANSCRIPT
Structures and Structures and OrganellesOrganelles
7.3
Cytoplasm and Cytoplasm and CytoskeletonCytoskeleton
Cytoplasm-semifluid materialprokaryotes- Chemical process occureukaryotes- Where organelles are found
Cytoskeleton- Support “net” for organellesmicrotubules and microfilaments
The NucleusThe NucleusThe “manager”
Contains most of cell’s DNA
Stores info used to make proteins for cell growth, function, and reproduction
Surrounded by the Nuclear Envelope
similar to plasma membrane
nuclear pores allow substances to move in and out
nucleolus- Site of ribosome production
RibosomesRibosomes
Help produce proteinsMade of RNA and proteinCan be bound in the Endoplasmic Reticulum
Endoplasmic Endoplasmic Reticulum (ER)Reticulum (ER)
Membrane system of folded sacs and channelsSite for protein and lipid synthesisRough ER- where ribosomes attachSmooth ER- where lipids are synthesized
Golgi ApparatusGolgi Apparatus
The “shipping center” Flattened stack of membranespacks proteins into vesicles to bre released from the cell
VacuolesVacuoles
the “storage facility”stores food, waste, or enzymesAlways in Plant CellsNot Always in Animal cells
LysosomesLysosomes
The “custodians” digest excess organelles and/or food particlesalso digest bacteria and virusesonly in animal cells
CentriolesCentrioles
Groups of microtubulesfunction during cell divisionnot found in plant cells
MitochondriaMitochondria
The “power supply” or “powerhouse”converts sugar into usable energyhighly folded, for increased surface area
ChloroplastsChloroplasts
“solar panels”capture light energy and converts to chemical energy (photosynthesis)Filled with ChlorophyllFound in Plants
Cell WallCell Wall
Thick, rigid, mesh of fibers that surrounds the plasma membraneProtects cell and gives supportMade of celluloseFound in plants
Cilia and FlagellaCilia and FlagellaProject off of the plasma membraneSmall whiplike structure that aids in locomotionIn some animal cells