Organelles

LAUNCH • Pick two organelles from

yesterday, describe their function and draw a quick sketch

LAUNCH • What are the differences and

similarities between a prokaryotic and eukaryotic cell? What are examples of each?

Parts of the Cell

Plant vs Animal Cells

ANALOGY!

Organelles perform the functions of the cell just like different people and places

perform the functions of LPS!

If the nucleus of a cell is analogous to Ms. Klaffky, the principal, what function do you think the nucleus does?

Control CenterHolds genetic

material

Nucleus

Nu

cleu

sLily Parenchyma Cell. Note the large nucleus and nucleolus in the center of the cell, mitochondria and plastids in the cytoplasm.

Nucleus

• Function: Control center of the cell, holds genetic information of DNA

• Found: In all Eukaryotic Cells (both plant and animal cells have nuclei)

• Analogy: Ms. Klaffky (principal)

Power Station Produces Energy

Mitochondria

Changes chemical energy into food

Mitochondria

Mit

och

ond

ria

The Cafeteria

(MPR)

Mitochondria

Mitochondria

• Function: convert chemical energy stored in food into compounds which cell can use for energy

• Found: In All Eukaryotic Cells in the cytoplasm

• Analogy: Cafeteria

Power Station Produces Energy

Chloroplast

Changes sunlight into food by photosynthesis

Found in Plants Only

Chloroplast

Ch

loro

pla

st

The Cafeteria (again)

Chloroplast

INTRACELLULAR TRANSPORT

• ER• Golgi• Lysosome• Vacuole

Makes proteins

Ribosome

Very small

RibosomesRibosomes

Ribosome• Function: makes proteins; where

translation occurs

• Found: In All Eukaryotic Cells; in cytoplasm and on rough endoplasmic reticulum

• Analogy: Guidance Office, Teachers

Pathway to ship proteins

Endoplasmic Reticulum

Endoplasmic Reticulum• Function: Pathway to ship

proteins

• Found: All Eukaryotic Cells in cytoplasm

• Analogy: Hallway

E.R

.

E.R

.

Hallways

Endoplasmic Reticulum

Package and ship out proteins

Golgi Apparatus

Golgi Apparatus• Function: package and ship

out Proteins• Found: All Eukaryotic Cells

in cytoplasm• Analogy: Ms. Rivera and Ms.

Aguilar, Office Secretaries

Golgi Apparatus

Gol

gi

Ap

par

atu

s

Main Office / Ms. Rivera

Golgi Apparatus

Clean up crew

Lysosome

Lysosomes

• Function: cleanup crew of cell – eats old stuff

• Found: All Eukaryotic Cells in cytoplasm

• Analogy: Custodians

The Custodians

Lysosome

Lysosome

Exit Ticket!

• On your index card, write your name and number 1-3

• For each slide that is shown, write down the ‘mystery organelle’ being described.

• Function: Pathway to ship proteins

• Found: All Eukaryotic Cells

• Analogy: Hallway

1.

• Function: package and ship out Proteins

• Found: All Eukaryotic Cells• Analogy: Office Secretaries

2.

• Function: convert chemical energy stored in food into compounds which cell can use for energy

• Found: In All Eukaryotic Cells• Analogy: Cafeteria

3.

LAUNCH • Pick two organelles from

yesterday, describe their function and draw a quick sketch

Controls what gets in and out of

the cell

Cell Membrane

Cell Membrane• Function: allow items in and out

• Found: All Eukaryotic Cells

• Analogy: Gates of School

Cell Membrane

Protects the plant cell

Cell Wall

Cell Wall• Function: rigid wall, shape, keep

stuff out • Found: PLANTS ONLY!!!• Analogy: Walls,

Found in Plants Only

Cell Wall

Cel

l Wal

l

The fence

Cell Wall

Plastid• Function: store starch & fats, others absorb

light energy• Found: PLANTS ONLY!!!• Analogy: you under breezeway

Holds cellular organelles in

place

Cytoplasm

Cytoplasm• Function: jelly like stuff between cell

membrane and nucleus• Found: All Eukaryotic Cells• Analogy: The whole school inside the

cell wall but not the office

The Air

Cytoplasm

Cytoskeleton• Function: gives cell structure to maintain

shape and size

• Found: All Eukaryotic Cells

• Analogy: Your school schedule

Storage of food and water

Vacuoles

Vacuole• Function: store enzymes & metabolic

wastes• Found: PLANTS ONLY!!! (but a few

animal cells too)• Analogy: Lockers

Huge in plant cells

Small in animal cells

Plant CellsPlant Cells

Vac

uol

e

The Lockers

Vacuoles

Cilia and Flagella• Function: assist in movement of cell

• Found: Many Eukaryotic Cells

• Analogy: Your feet

Animal CellsAnimal Cells