Cytology

study of cells

Cell Theory

all living things are made of cells

Plasma membrane

thin flexible barrier that separates the inside of the cell from the outside and controls what enters and exists. Helps maintain homeostasis

Cytoplasm

Gel-like fluid that fills the cell, holds organelles, and cytosol that contains water, nutrients, ions, and enzymes

Nucleus

Contains DNA and key to understanding genetic disorders, cancers, and med effects

Phospholipid bilayer

Two layers of phospholipids.

Hydrophillic head

face out

Hydrophobic tail

face in

Channel proteins

allow substances to pass through

Carrier proteins

transport molecules

Receptor proteins

detect and respond to external signals