BIOL 1103 Characteristics of Life - Components w/in the cell

cytoplasm

viscous fluid where everything is suspended

Inclusions

chemical substances, e.g. stored nutrients

Organelles

specialized structures w/in the cell w/ specific fucntions

Plasma membrane

phospholipid bilayer w/ proteins, cholesterol and carbs

Nucleus

contains genetic info in form of DNA

contains: chromatin, necleolus, nuclear envelope

Ribosomes

protein synthesis

bound ribosomes attached to rough ER

products exported, used in membrane or in organelles

Endoplasmic Reticulum

interconnected tubes & membranes continue w/ outermembranes of nucleus

Rough ER

synthesis and transport of protein to Golgi Apparatus

Smooth ER

synthesis and transport of lipids: drug detoxification, Ca 2+ storage

Golgi Apparatus

flattened membrane sacs

Accept, process, package and ship products from rough ER to various parts of the cell

Vesicles

membrane-bound sacs that contain various molecules

e.g food, nutrients, phospholipids, liquids, etc.

What’s in vesicles

Vacuole, Transport/secretory vesicles, peroxisome, lysosome

Mitochondria

double membrane organelle w/ highly folded inner membrane

converts organic molecules into ATP