““The Cell City”The Cell City”Comparing a cell to Comparing a cell to

WorthingtonWorthington

Cell MembraneCell Membrane--

► ““city limits” city limits” maintains the cell’s maintains the cell’s limits or boundaries.limits or boundaries.

► Controls what goes Controls what goes in and out of the in and out of the cell.cell.

► food and water food and water move in, waste move in, waste moves out.moves out.

Cell WallCell Wall

►Cell wall is like a Cell wall is like a “security fence” “security fence” and also provides and also provides support like a support like a brick wall would brick wall would around an old around an old time city.time city.

►Only found Only found around plant cellsaround plant cells

NucleusNucleus--

► “ “city hall” directs city hall” directs all the activities of all the activities of the cell. the cell.

► Contains all the Contains all the plans and blueprints plans and blueprints in the form of DNA.in the form of DNA.

CytoplasmCytoplasm--

► “ “the inner city” the the inner city” the fluid in the cell which fluid in the cell which contains all the contains all the organelles.organelles.

►Organelles are like Organelles are like the “businesses” of the “businesses” of the cellthe cell

► Cytoplasm fills the Cytoplasm fills the space from the space from the nucleus to the cell nucleus to the cell membranemembrane

MitochondriaMitochondria--

► “ “powerhouse” powerhouse” supplies energy to supplies energy to power all of the power all of the cell’s functions. cell’s functions.

► Like the generators Like the generators located near located near fairgrounds.fairgrounds.

► Found in higher Found in higher numbers in cells that numbers in cells that need a lot of energy.need a lot of energy.

ChloroplastChloroplast

►Organelle that uses Organelle that uses energy from the energy from the sun to make foodsun to make food

►Like “Solar panels” Like “Solar panels” collect energy to collect energy to power houses or power houses or factories factories

►Found only in plant Found only in plant cellscells

Endoplasmic reticulum Endoplasmic reticulum (ER)(ER)--

► Like “highways and Like “highways and streets”, moves streets”, moves materials around materials around the cellthe cell

► extending from the extending from the nucleus to the cell nucleus to the cell membrane. membrane.

RibosomeRibosome--

► Like “factories” Like “factories” makes proteins that makes proteins that are transported are transported along the E.R. along the E.R.

► Located on the E.R. Located on the E.R. or floating in the or floating in the Cytoplasm (JBS, Cytoplasm (JBS, Bedford, and Bedford, and Highland).Highland).

Golgi Bodies or ApparatusGolgi Bodies or Apparatus

► ““packaging” does packaging” does not make anything not make anything but prepare but prepare materials for materials for shipment outside shipment outside the cellthe cell

► Like the Freezer Like the Freezer Warehouse in Warehouse in Worthington.Worthington.

VacuolesVacuoles--

► “ “storage” holds storage” holds materials until materials until needed later. (grain needed later. (grain elevator and water elevator and water tower).tower).

► Large vacuoles are Large vacuoles are found in plant cells found in plant cells to store water.to store water.

LysosomesLysosomes--

► “ “sanitations” they sanitations” they produce chemicals produce chemicals that digests wastes that digests wastes and worn-out cell and worn-out cell parts.parts.

► When the cell dies When the cell dies the lysosomes break the lysosomes break open and break down open and break down the cell. the cell.

►Mostly found in Mostly found in animal cellsanimal cells

Cell City ComparisonCell City Comparison

Plant CellPlant Cell Animal CellAnimal Cell