Cells
• Domains: Archaea and Eubacteria Prokaryotes Prokaryotes: no nucleus or organelles • Domains: Archaea and Eubacteria
Eukaryotes Eukaryotes: nucleus and organelles Organelle: structure in cells that perform specific functions Plasma membrane: outer boundary of cell Cytoplasm: portion of the cell outside the nucleus Nucleus: cell control center; contains DNA
Organelles Ribosomes: create proteins from RNA Endoplasmic reticulum: produces, transports, and stores enzymes/proteins
Organelles Golgi apparatus: sorts, packages, and secretes proteins and lipids Lysosomes: digest organic molecules
Organelles Mitochondria: convert energy to ATP; have their own DNA that is passed from mother to offspring Cilia/flagella: help the cell move Vacuole: membrane sac
Nucleus Nucleus: contains DNA; control and information center for the cell Nuclear envelope: membrane that separates nucleus from cytoplasm Chromatin: DNA and protein Chromosomes: DNA, made of tightly coiled chromatin
Parts to the Chromosome Centromere- is the part of a chromosome that links sister chromatids. Chromatid-contains DNA DNA