FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Chapter 7 Cell Structure & Function Section 7-4 The Diversity of Cellular Life

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Unicellular Organisms Cells Are:Cells Are: –The Basic Living Units Of All Organisms Unicellular OrganismsUnicellular Organisms –Grow –Respond –Reproduce

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Unicellular Organisms ProkaryotesProkaryotes Live EverywhereLive Everywhere

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Unicellular Organisms EukaryotesEukaryotes –Many live their entire lives as single cells

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Unicellular Organisms EukaryotesEukaryotes Some protists and algae are unicellular but live in coloniesSome protists and algae are unicellular but live in colonies

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Multicellular Organisms Key Concept: Cells In Multicellular Organisms Are Specialized To Perform Particular Functions Within The Organism Cell Specialization

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Red Blood Cells

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Pancreatic Cell

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Nerve Cells

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Muscle Cells

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Levels of Organization Key Concept: The Levels Of Organization In A Multicellular Organism Are: Individual Cells TissuesOrgans Organ Systems

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Cells SpecializationAndInterdependence Make Multicellular Organisms Work

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Tissues Group Of Similar Cells That Perform A Particular FunctionGroup Of Similar Cells That Perform A Particular Function Four Main Types:Four Main Types: –Muscle –Epithelial –Nervous –Connective

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Organs Many Groups Of Tissues Working TogetherMany Groups Of Tissues Working Together Muscle Tissue Contains:Muscle Tissue Contains: –Muscle Cells –Nerve Cells –Connective Tissue Cells –Blood Supply

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Organ Systems A Group Of Organs Working Together To Perform A Specific Function

FOOTHILL HIGH SCHOOL SCIENCE DEPARTMENT Organ Systems NervousNervous SkeletalSkeletal MuscleMuscle IntegumentaryIntegumentary CirculatoryCirculatory RespiratoryRespiratory DigestiveDigestive ExcretoryExcretory EndocrineEndocrine ReproductiveReproductive ImmuneImmune