Group Activity Nucleus Mitochondria Chloroplast Cell Membrane Identify cell you are given: Plant or Animal Label cell organelles using the word bank Each person must describe the function of each organelle on a separate piece of paper. Nucleus Mitochondria Chloroplast Cell Membrane Cell Wall Vacuole Cytoplasm Ribosomes Endoplasmic Reticulum Golgi Bodies

Plant Cell A B C D E H F G

Animal Cell I J H A G B C F D E

Cell Membrane Both plant and animal cells Description Function Inside cell wall of plant Outer layer for animal Selectively permeable Function Support and protection Controls what enters and leaves the cell Maintain homeostasis Barrier between cell and outside environment

Cell Wall Only found in plant cells Description Functions Outer layer Rigid, strong stiff Made of cellulose. Functions Support and protection Allows water, oxygen, and carbon dioxide in and out of cell.

The Nucleus Both plant and animal Description Function Large oval structure Function Controls most activities in the cell Contains all genetic information in the form of DNA.

Cytoplasm Both plant and animal Description Function Clear, thick, jellylike fluid within cell that contains all organelles Inside cell membrane Function Allows movement of materials throughout the cell Supports and protects organelles

Endoplasmic Reticulum Both plant and animal Description Series of folded membranes that form sacs or tubes Function carries materials through cell lipid components of cell membrane are assembled. modify proteins made by ribosomes Rough ER has ribosomes attached

Ribosomes Both animal and plant Also in prokaryotes! Description Small bodies, free or attached to ER Function Makes proteins in the cell May be free in cytoplasm or attached to ER Proteins are vital to life- all cells must produce them

Golgi Bodies Both plant and animal Description Function Saclike, folded membranes Function modifies, sorts, and packages proteins prepares cell components for storage or movement out of cell Cells that make saliva or mucus have many Golgi bodies

Mitochondria Both plant and animal Description Function bean-shaped with inner membranes Function breaks down sugar molecules into energy Energy producers Powerhouse of the cell Many mitochondria in muscle cells

Chloroplast Only plant cells Description Green, oval usually containing chlorophyll Double membrane Function uses energy from sun to make food for the plant (photosynthesis)

Vacuoles Plants have few that are large Animals have small vacuoles Description Fluid filled sacs Function Store food, water, or waste materials In plants the pressure adds support for heavy leaves Plant need to store lots of food! Vacuoles

Lysosomes Plant –uncommon Animals - common Description Small, round with a membrane Function Contain digestive enzymes to digest unwanted particles Digests old cell parts Help white blood cells to destroy bacteria

What am I?

What am I? Insect cell

What am I? Cheek Cell

What am I?

What am I? Red blood cells

What am I? Plant

What am I? Neurons

Summarize: What did you notice about all of the plant cells? What did you notice about all of the animal cells?

Cell Specialization: Benefit of Multicellular Organisms How are the plant cells that are found in the leaves of a tree different from the plant cells that are found in the roots of the tree? How are our skin cells different from our muscle cells?