CellsCellsBy: Ashley By: Ashley

Frazier and Frazier and Christine Christine JacksonJackson

Period:6thPeriod:6th

NucleoluNucleolu

ss A small A small

structure structure within the within the cell nucleus cell nucleus that contains that contains RNA and RNA and proteins.proteins.

NucleusNucleus The control center The control center

of the cellof the cell Protected by the Protected by the

nuclear membrane nuclear membrane – extra thick– extra thick

Contains nuclear Contains nuclear pores (passage way pores (passage way to the inside of to the inside of nucleus – lets out nucleus – lets out instructions to the instructions to the rest of the cell)rest of the cell)

Nuclear Nuclear EnvelopeEnvelope

““Double Double membrane” membrane” layerlayer

Extra thickExtra thickClosses off Closses off

DNA from DNA from cytoplasmcytoplasm

CytoplasCytoplasmm

:“jelly like :“jelly like substance” substance” called called cytosolcytosol

:Protects the :Protects the organellesorganelles

:Supportive :Supportive framework framework (cytoskeleton(cytoskeleton))

LysosomeLysosome Contain powerful Contain powerful

enzymes to break enzymes to break up old cell up old cell components and components and bacteriabacteria

Considered the Considered the “garbage “garbage disposal” of the disposal” of the cellcell

MitochondriaMitochondria

Energy source of the Energy source of the cellcell

Contains cristae – Contains cristae – needed for aerobic needed for aerobic respirationrespiration

Vary in size and Vary in size and shapeshape

Reproduce by divingReproduce by diving

Golgi ApparatusGolgi Apparatus

Composed Composed of flattened of flattened sacssacs

Packages Packages and delivers and delivers proteinsproteins

Smooth ERSmooth ER

Not covered in Not covered in ribosomesribosomes

Functions in the Functions in the synthesis of lipidssynthesis of lipids

Rough ERRough ER Made up in folded Made up in folded

membranemembrane Appears rough Appears rough

because it is covered because it is covered in ribosomesin ribosomes

Provides a tubular Provides a tubular transport system in transport system in cellcell

Functions in the Functions in the synthesis and synthesis and transport of protienstransport of protiens

Cell MembraneCell Membrane

Selectively Selectively permeable: allows permeable: allows only certain objects only certain objects in and outin and out

““barrier of barrier of protection”protection”

Signal transduction: Signal transduction: way to relay info way to relay info about outside about outside environmentenvironment

mitosismitosis

Division of a Division of a somatic cell to somatic cell to form two form two genetically genetically identical cellsidentical cells

The The endend