prokaryotes and eukaryotes key
TRANSCRIPT
Prokaryotes and
Eukaryotes
Notes
Two main types of cells…
1.Prokaryotes
2.Eukaryotes
The Diversity of LifeBegins with
simple prokaryotic cells
complex eukaryotic cells
Ends with
The Six KingdomsProkaryotic Eukaryotic
1. Eubacteria (Monera) 1. Animals
2. Archaebacteria 2. Plants
3. Fungi 4. Protista
Prokaryotes (pro = before, karyote = nucleus before there was a nucleus)
• The Earth’s first living things
• The simplest life forms exhibiting (showing) cellular structures
• The Earth’s most abundant inhabitants
Prokaryotes• Prokaryotes can survive in a wide range of
environments – can withstand extreme temperatures– extreme pH levels– can live in areas of no oxygen or no water
• obtain their energy in a variety of ways
-some can make their own food (autotrophs)
-some have to find their food (heterotrophs)
Archaebacteria
Hot Spring (Yellowstone National Park)
Hot Spring (Yellowstone National Park)
Boiling Mudpot: Lassen Volcanic National Park, California
Volcano
Antarctica
ProkaryotesProkaryotic cells exist in two major kingdom:
– Eubacteria (Monera)• Most of the common bacteria
that are found everywhere
– Archaebacteria (archae=ancient or old)• Ancient bacteria that
live in very extreme conditions only found in certain places on Earth.
Eukaryotes (eu = true, karyote = nucleus they have a real or true nucleus)
• Eukaryotes arose from prokaryotes and developed into larger and more complex organisms.
• Examples include some unicellular protists to multicellular fungi, plants, and animals.
• HINT: Remember YOU are a EUKARYOTE!
Age• Prokaryotes: Older- 3.5 billion yrs
• Eukaryotes: Younger- 1.5 billion yrs
Cell Size• Prokaryotes: very,VERY small
• Eukaryotes: very small to large
Covering around genetic material and other cell parts
• Prokaryotes: no membrane covering around the genetic material (DNA) and other cell parts
•No Nucleus
• Eukaryotes:– membrane-bound nucleus (with
DNA) and other membrane-bound cell parts.
Cell parts• Prokaryotes:
–Only a few types of cell parts–Simple
• Eukaryotes:–Many different cell parts –Complex