Cells/ Cell membrane

Main component of cell membrane

Phospholipid bilayer

Hydrophilic

Water-loving

Hydrophobic

Water-fearing

Selective permeability

Only certain substances can pass

Three principles of cell theory

All living things are made of cells; cells are the basic unit of life; cells come from other cells

Prokaryotic cell traits

No nucleus, unicellular, bacteria

Eukaryotic cell traits

Nucleus, membrane-bound organelles

Plant-only structures

Cell wall, chloroplasts, large central vacuole

Animal-only structures

Centrioles, lysosomes, cilia, flagella

Nucleus function

Protects DNA

Ribosome function

Makes proteins

Rough ER

Protein synthesis

Smooth ER

Lipid synthesis

Golgi apparatus

Modifies, sorts, and ships proteins

Mitochondria

Cellular respiration

Chloroplast

Photosynthesis

Lysosome

Breaks down waste and old cell parts