The Cell

Cell Theory The Cell is the smallest unit of life Cells come from existing cells All cells use energy and have a metabolism All cells have a plasma membrane All cells have genetic information in the form of DNA

Cell Size

Cell Size

Cell Types

Ribosomes

Prokaryotic Cells

Prokaryotic Cells

Eukaryotic Cells

Eukaryotic Cells

Nucleus Nuclear Envelope Chromosomes Chromatin Nucleolus

Rough Endoplasmic Reticulum Secrete proteins Produce membranes

Smooth Endoplasmic Reticulum Synthesis of lipids Detoxify the cell

Golgi Apparatus The warehouse of the cell Modifies / Stores /Ships products

Lysosomes “Stomach” of the cell Digests food Recycles parts Programmed Cell Destruction

Vacuoles / Vesicles Storage food Storage waste Transport

Endomembrane System

Mitochondrion “Powerhouse” of the cell – Makes ATP

Chloroplast / Plastid Photosynthesis

Cell Walls

Plant Cell

Animal Cell

Cytoskeleton Microtubules Microfilaments Intermediate Filaments

Centrioles, Cilia and Flagella

Intermediate Filaments Maintenance of Cell Shape Anchorage of Nucleus and Organelles Formation of Nuclear Lamina

Intercellular Junctions Gap Junctions

Plasmodesmata

Autogeneous & Endosymbiosis