Cell Structure

& Function

http://koning.ecsu.ctstateu.edu/cell/cell.html

Definition of Cell

A cell is the smallest

unit that is capable

of performing life

functions.

Examples of Cells

Amoeba Proteus

Plant Stem

Red Blood Cell

Nerve Cell

Bacteria

“Typical” Animal Cell

http://web.jjay.cuny.edu/~acarpi/NSC/images/cell.gif

http://waynesword.palomar.edu/images/plant3.gif

“Typical” Plant Cell

Cell Parts

Organelles

Surrounding

the Cell

Cell Wall

• Function:

–Provides

strength and

support to

the cell

membrane http://library.thinkquest.org/12413/structures.html

Location of Cell Wall

• Surrounds the

outside of the plant

cell

Nickname of Cell Wall

• “Bones”

Found Only in Plant Cells

Cell Membrane

• Controls

what enters

and leaves

the cell

http://library.thinkquest.org/12413/structures.html

Cell Membrane-

Location • *Just inside the

cell wall – Plant

• *Surrounds the

outside of the

cell – Animal

http://library.thinkquest.org/12413/structures.html

Cell Membrane-

Nickname • Gatekeeper

http://library.thinkquest.org/12413/structures.html

Inside the Cell

Nucleus

• Controls and

directs all cell

activities

• Contains genetic

material - DNA

Nucleus- Location

• Near the center

of the cell in the

cytoplasm

Nucleus- Nickname

• “The Brain”

Nucleus

• Found in both

Plant and

Animal

Cytoplasm

• Thick, gel-like

fluid where

organelles are

found

Cytoplasm-

Location

• Throughout

Cytoplasm-

Nickname

• “Jelly”

Cytoplasm

• Found in both

plant and

animal cells

Chloroplast • Makes food for

the plant cells.

• Contains

chlorophyll.

http://library.thinkquest.org/12413/structures.html

Chloroplast-

Location • Cytoplasm

http://library.thinkquest.org/12413/structures.html

Chloroplast-

Nickname

• Restaurant

http://library.thinkquest.org/12413/structures.html

Chloroplast

• Found in Plant

cells

http://library.thinkquest.org/12413/structures.html

Vacuoles • Storage areas

within the

cytoplasm

• Plants have one or

a few larger ones

• Animals have

several small ones http://library.thinkquest.org/12413/structures.html

Vacuoles- Location Cytoplasm

http://library.thinkquest.org/12413/structures.html

Vacuoles- Nickname Storage House

http://library.thinkquest.org/12413/structures.html

Vacuoles Found in both Plant and

Animal Cell

http://library.thinkquest.org/12413/structures.html

Lysosomes

• Breaks down food

and old cell parts

Lysosomes- Location

• Cytoplasm

Lysosomes- Nickname

• “Cleanup Crew”

Lysosome

• Animal Cell only