Go to Section:

The Cell Theory

All living things are composed of cells.Cells are the basic units of structure and function in living things.New cells are produced from existing cells.

Go to Section:

Prokaryotic Cells

Bacteria and cyanobacteriaNo true nucleus; lacks nuclear envelopeGenetic material in nucleoid regionNo membrane-bound organelles

Go to Section:

Eukaryotic Cells

Plants, animals, fungi, protistsTrue nucleus; bounded by nuclear envelopeGenetic material within nucleusContains cytoplasm with cytosol and membrane-bound organelles

Go to Section:

Prokaryotic Cell

Cell membrane

Cell membrane

Cytoplasm

Cytoplasm

Nucleus

Organelles

Eukaryotic Cell

Section 7-1

Prokaryotic and Eukaryotic CellsComparison of Prokaryotic and Eukaryotic Cells

Go to Section:

Prokaryotic Cell

Go to Section:

Animal Cell

Go to Section:

Plant Cell

Go to Section:

Prokaryotes Eukaryotes

Cell membraneContain DNA

NucleusEndoplasmic reticulum

Golgi apparatusLysosomesVacuoles

MitochondriaCytoskeleton

Animal Cells Plant Cells

Centrioles

Cell membraneRibosomes

NucleusEndoplasmic reticulum

Golgi apparatusLysosomesVacuoles

MitochondriaCytoskeleton

Cell WallChloroplasts

Section 7-2

Venn Diagrams

Go to Section:

Nucleus

Go to Section:

Ribosomes – builds cell’s proteins

Go to Section:

Go to Section:

Functions of the Endoplasmic Reticulum

Smooth ERSynthesizes lipids, phospholipids and steroidsParticipates in carbohydrate metabolismDetoxifies drugs and poisonsStores calcium ions necessary for muscle contraction

Rough ERManufactures proteins that are secreted and membranes

Go to Section:

Golgi apparatus – finishes, sorts, and ships many products of the cell

Go to Section:

Lysosome – digestive compartments

Go to Section:

Formation and Function of Lysosomes

Go to Section:

Plant Cell Vacuole – stores compounds

Go to Section:

Mitochondrion – site of cellular respiration

Go to Section:

Chloroplast – site of photosynthesis

Go to Section:

Structure and Function of the Cytoskeleton

Go to Section:

Motor Molecules and the Cytoskeleton

Go to Section:

Plant Cell Walls – protect cells, maintain shape, prevent excess water uptake

Go to Section:

Animal Cell Plasma Membrane