Plasma Membrane, Nucleus, and Cytoplasm

Structure of Plasma Membrane

2 layers of phospholipids embedded with integral and peripheral proteins

Integral & Peripheral Protein

functional proteins that serve as channels and pumps

DNA

genetic blueprint for life: necessary for cell reproduction

Function of Cytoplasm

hold the organelles within a cell

Function of Nucleus

houses the DNA; genetic control center of cells

Phosphate head

hydrophilic

Lipid tail

hydrophobic

Structure of Nucleus

nuclear envelope surrounds DNA; covered in pores to allow information to leave the nucleus

Function of Plasma Membrance

provides a boundary around the cell; acts as a place for chemical reactions to occur

Structure of Cytoplasm

semi-fluid medium; think fruit jelly

Organelles

small organs found within the cell that perform specific functions

Selective Permeability

cell can select what enters; characteristic of plasma membrane