Chapter 3

Cells Lecture C

Cytoplasm

Located between plasma membrane and nucleus

Composed of

Cytosol Organelles InclusionsCytoplasmic Organelles

Membranous

Nonmembranous Mitochondria

( Cytoskeleton

Peroxisomes

( Centrioles

Lysosomes

( Ribosomes

Endoplasmic reticulum

Golgi apparatus

Membranes allow crucial compartmentalization

Mitochondria

Ribosomes

Endoplasmic Reticulum (ER)

Two varieties:

Rough ER

Smooth ER

Rough ER

Smooth ER

Golgi Apparatus

Peroxisomes

Lysosomes

Endomembrane System

Cytoskeleton

Elaborate series of rods throughout cytosol; proteins link rods to other cell structures

Microfilaments

Intermediate Filaments

Microtubules

Centrosome and Centrioles

Cellular Extensions

Cilia and flagella

Microvilli

Minute, fingerlike extensions of plasma membrane

Increase surface area for absorption

Core of actin filaments for stiffening

Nucleus

The Nuclear Envelope

Nucleoli

Chromatin

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