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Organelles
“Tiny Organs”
Ch. 7-2
Cytoplasm
Jelly-like substance throughout cells.
 Contains water and nutrients.

Nucleus
 Largest
organelle in eukaryotic cells
 Contains DNA
 Controls all cell’s activities
Nucleoplasm
Jelly-like substance inside nucleus
 Similar to cytoplasm of cell
 Surrounds the genetic material and
nucleolus

NUCLEOPLASM
nucleolus
Nuclear
pores
Nuclear
envelope
Nuclear Membrane (Nuclear Envelope)
Surrounds the nucleus
 Controls what gets in/out
 Allows things in and out through Nuclear
Pores

NUCLEAR
MEMBRANE
NUCLEAR PORES
Genetic Material
Made of DNA
 Has directions for making proteins.

chromatin
chromosome
Nucleolus
Circular structure inside nucleus
 Makes ribosomes

nucleolus
Ribosomes

Makes proteins according
to instructions from DNA
ribosomes

Found



Free in cytoplasm
Attached to Rough ER
Attached to nuclear envelope
Rough Endoplasmic Reticulum
Usually attached to nuclear envelope
 Ribosomes attached to it.
 Transports proteins made by ribosomes

Rough ERribosomes attached
Smooth ER-no ribosomes attached
Smooth Endoplasmic Reticulum

Manufactures and transports Lipids.
Smooth ERNO ribosomes
attached
Golgi Apparatus (Golgi Bodies)

Packages and ships proteins
Lysosomes(animal cells only)
Contains enzymes to breakdown waste.
 “Suicide sacs”-recycles waste.

Vacuoles
Plants:
a. Stores water.
b. Very large
Animals:
a. Stores carbs., lipids, & proteins
b. Small
Mitiochondria

Makes energy for cell by breaking down
glucose.

Very abundant in muscle cells.
Chloroplast(plant cells only)

Where
Photosynthesis
takes place.

Makes glucose

Contains chlorophyll
which absorbs sun’s
energy and gives
plants their green
color.
Cytoskeleton
Mesh like material throughout cytoplasm.
 Supports cell.

Centrioles (animal cells only)
Aides in cell division (mitosis)
 2 in each cell

Cell Membrane
Surrounds cell
 Regulates what comes in and out of cell.
 Made of lipids and protein.

CELL MEMBRANE
Cell Wall (plant cells only)
Tough outer covering.
 Outside of cell membrane
 Supports and protects cell.

Cillia
Used for movement
 Hair-like
 Ex: trachea

Flagella
Used for movement
 Whiplike
 Ex: Sperm

Eukaryopolis - The City of Animal
Cells: Crash Course Biology #4 YouTube
Cell Membrane
Endoplasmic
Reticulum
Nucleus
Golgi Body
Ribosomes
Mitochondria
Lysosome