DSA Week 1: Parts of the Cell

Cytoplasm

Fluid inside the cell

Plasma Membrane

regulates the transport of materials in and out of the cell

Cytoskeleton

Helps cell maintain shape and organisation by transporting organelles

Mitochondria

Produces ATP for cellular respiration

Lysosomes

Cleans the cells by breaking down waste

Golgi apparatus

Modifies and packages proteins and lipids to be exported from the cell

Rough endoplasmic reticulum

studded with ribosomes and is involved with protein synthesis

Smooth endoplasmic reticulum

synthesizes lipids and detoxes the cell

Phospholipid

1 glycerol + 2 fatty acids

cholesterol

stabilizes the phospholipid bilayer

Membrane protein

Integral proteins act as receptors, enymes and transport channels

phospholipid bilayer

acts as a selectively permeable barrier

Peripheral protein and glycocalyx

allow cell-to-cell recognition

Tight junction

Integral proteins fuse to other cells to prevent molecules from passing between cells

Desmosome

proteins on cytoplasmic surfaces entangle and act as rivets to keep cells from tearing apart

Gap junction

protein channels linking the cytosols of cells allow molecules to pass from cell to cell