Do Now: List some organelles that you already know. Can you name their functions too?

Have out HW page 197 questions 1-5, 9, 10, 12,13,14

Tuesday 10/21 background information for Science Project due

Wednesday 10/22; Read pages 184-189 answer questions 189 #’s 1-5

Thursday 10/23 Exam

Project #1 due on 11/12. Any Questions?

In groups use page 174 of your text to label the animal and plant worksheets

What two structures do plant cells have that animal cells do not have?

Handout: Complete the chart in groups using textbook

StructureStructure FunctionFunction

StructureStructure FunctionFunction

Nucleus Nucleus Contains the DNA (blueprints) to make proteinsContains the DNA (blueprints) to make proteins

ChromatinChromatin DNA bound to protein found inside nucleus of cell; turns DNA bound to protein found inside nucleus of cell; turns into chromosomes when cell gets ready to divideinto chromosomes when cell gets ready to divide

NucleolusNucleolus Assembles the RibosomesAssembles the Ribosomes

RibosomesRibosomes Actually makes the proteins by chaining amino acidsActually makes the proteins by chaining amino acids

Rough Endoplasmic ReticulumRough Endoplasmic Reticulum Ribosomes attached; newly made proteins enter and are Ribosomes attached; newly made proteins enter and are chemically alteredchemically altered

Smooth Endoplasmic ReticulumSmooth Endoplasmic Reticulum Without Ribosomes; contains enzymes that aid in certain Without Ribosomes; contains enzymes that aid in certain chemical reactionschemical reactions

MitochondriaMitochondria Powerhouse of the cell. Fuels the cell with energyPowerhouse of the cell. Fuels the cell with energy

Golgi ApparatusGolgi Apparatus Packages proteins and aids in transporting them out of Packages proteins and aids in transporting them out of the cellthe cell

Cell MembraneCell Membrane Protects the cell from surrounding environment; Protects the cell from surrounding environment; selectively permeable selectively permeable

LysosomesLysosomes Filled with enzymes to help breakdown carbs, lipids, and Filled with enzymes to help breakdown carbs, lipids, and proteins for use by the cellproteins for use by the cell

VacuoleVacuole Storage unitStorage unit

ChloroplastsChloroplasts Found only in plant cells; aids in photosynthesisFound only in plant cells; aids in photosynthesis

Cell WallCell Wall Found only in plant cells; gives cell its structureFound only in plant cells; gives cell its structure

CytoplasmCytoplasm Jellylike substance that fills cell; organelles live within itJellylike substance that fills cell; organelles live within it

CytoskeletonCytoskeleton Proteins that help maintain cell shape and aid in cell Proteins that help maintain cell shape and aid in cell movementmovement