Biology Chapter 4

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ANIMAL CELL

NUCLEUS:

RIBOSOMES:

ENDOMEMBRANE SYSTEM: nucleus, nuclear envelope, endoplasmic reticulum, golgi, lysosomes, vesicles & vacuoles, plasma membrane

-carries out synthesis of proteins, transport of proteins, metabolism + movement of lipids, detoxification of poisons

VESICLES:(TRANSPORT)

GLYCOPROTEINS:

ENDOPLASMIC RETICULUM:(ROUGH AND SMOOTH)

GOLGI APPARATUS:

L

LYSOSOME:

Phagocytosis:

process in which protists eat by engulfing smaller organisms

VACUOLES:

MITOCHONDRIA:

CYTOPLASM:

CYTOSKELETON:

CELLULAR JUNCTIONS

ANIMAL CELL

Extracellular Matrix

Glycoproteins & carb- containing cells

PLANT CELL

CELL WALL:

PEROXISOMES:

CHLOROPLAST:

PROKARYOTIC CELL

Collagen- glycoprotein; forms strong fibers in outside cell

Proteoglycans- small protein with carb chains covalently attached

Fibronectin- glycoprotein; bind to cell surface receptor proteins (integrins)

Integrin- receptor protein in plasma membrane

Tight Junctions

Seal adjacent epithelial cells

Functions

1) prevent the passage of molecules and ions between cells

-controls what substances are allowed through

2) block the movement of integral membrane proteins

-receptor mediated endocytosis and exocytosis can be preserved

PLANT CELL

Plasmodesmata

-communication between plant cells

-single living unit

Gap Junctions

-communication

-communication

Desmosomes

"rivets"

-hold two cells tightly together

Eukaryotic Cell-Animal

Prokaryotic Cell

Eukaryotic Cell- Plant

Cellular Junctions