Upload File

prokaryotes – bacteria and archea no membrane bound organelles large surface area to volume ratio...

  • Home
  • Documents
  • Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or
22
Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or colonial

Upload: stephen-reed

Post on 24-Dec-2015

218 views

Category:

Documents


0 download

Report

Tags:

TRANSCRIPT

Page 1: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Prokaryotes – Bacteria and Archea

No membrane bound organelles

Large surface area to volume ratio

Asexual reproduction by binary fusion

Single celled or colonial

Page 2: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Anaerobic metabolism – what’s going on in the hypolimnion of a stratified, anoxic lake?

Chemoheterotrophs and Photohetertrophs – using active transport, more efficient at low nutrient concentrations

Photoautotrophs – i.e. cyanobacteria (blue-green algae)

Ecology

Diapause – it may be that the dormancy is very important in bacteria

Page 3: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Cyanobacteria

Prokaryotes (no nucleus or organelles)Blue-greenPigment = Chl a

Page 4: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Filamentous blue-green algae (Cyanophyta)

Page 5: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or
Page 6: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or
Page 7: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or
Page 8: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Protista – Protozoa and algae

Eukaryotic (membrane bound organelles, nucleus, mitochondria, chloroplasts in photosynthetic protists)

Single celled (although may be colonial)

Page 9: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Protozoa

Also Giardia and Cryptosporidium

Heterotrophic Protists

Paramecium, amoebas, Euglena, Hydra

Page 10: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Photoautotrophic Protista – Algae

Single celled or colonial

Floating

Phytoplankton

Benthic algae

Attached to surfaces (rocks, sediment)

Page 11: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Chlorophyta - Green

Green-yellow greenPigment = Chl a and bSome have flagella

Page 12: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Chrysophyta

Yellow green to golden brownPigment = Chl a and cSome have 2 flagella

Page 13: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Chrysophyta (Golden-brown algae) Diatoms

Brown to light greenPigment = Chl a and cSome have flagellaSilica walls – composed of 2 frustules

Page 14: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Euglenophyta

Pigment = Chl a and bAll have flagellaEyespotsMost are heterotrophic and autotrophic

Page 15: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

DinoflagellataGrayPigment = Chl a and cTwo flagellaSome are highly toxic

Page 16: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Pfisteria

Page 17: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or
Page 18: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Reproduction - diverse

Vegetative cell

resistant cell (resting stage)

Encystment

Germination

Asexual reproduction

usually binary fission

Sexual reproduction – possibly motile gametes or conjugation tubes

Page 19: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Fungi

Yeasts

Hyphae grouped into mycellium

Chemoautotrophs (saprobic)

Sexual and asexual reproduction

Page 20: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Ecological importance

Breakdown of detritous

Parasites on other aquatic organisms

Page 21: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

Periphyton (or aufwuchs) – pond scum

Page 22: Prokaryotes – Bacteria and Archea No membrane bound organelles Large surface area to volume ratio Asexual reproduction by binary fusion Single celled or

A community of algae, fungi, bacteria


BACTERIA Prokaryotes are single-celled organisms that do not have a membrane-bound nucleus. Prokaryotes are single-celled organisms that do not have a

Prokaryotes Life Science. What are Prokaryotes? Single-celled organisms Very tiny Cannot be seen without a microscope Our microscopes are not

“Prokaryotes” - single-celled organisms that do not have membrane-bound organelles

Prokaryotes Chapter 27. Slide 2 of 20 Kingdom Monera Prokaryotes Unicellular (Single-celled) organisms that lack membrane-bound organelles and nuclei

Introduction to Prokaryotes7sciencewithmsnunez.pbworks.com/w/file/fetch/88505537/Introduction... · encountered the amazing world of prokaryotes. Prokaryotes are single-celled organisms

Bacteria UNIT 3 - Chapter 19. Prokaryotes Definition: single-celled organisms that lacks a NUCLEUS OLD Classification – MONERA Prokaryotes called BACTERIA

Kingdoms Archaebacteria and Eubacteria. KEY CONCEPT Kingdoms Eubacteria and Archaeabacteria are composed of single-celled prokaryotes

Prokaryotes - Le cerveau à tous les niveauxlecerveau.mcgill.ca/flash/capsules/articles_pdf/prokariotes.pdf · Prokaryotes are the single-celled organisms, such as bacteria, and are

A)- Prokaryotes. It includes two Major Domains: Archaea and Bacteria It includes two Major Domains: Archaea and Bacteria Prokaryotes are single-celled

Prokaryotes Review: No true nucleus (no nuclear membrane) No cellular organelles Single celled The bacteria

Ch 18.1 Bacteria one celled prokaryotes (“before nucleus”) first life on earth and most numerous divided into two kingdoms

Kingdoms Archaebacteria and Eubacteria. General Prokaryotes are single-celled organisms. They are the smallest, simplest organisms. The group includes:

18.4 Bacteria and Archaea KEY CONCEPT Bacteria and archaea are both single-celled prokaryotes

Archea and Eubacteria Archea Kingdom All prokaryotic single celled organisms. No Peptidoglycan in cell wall Most ancient and extreme They live in the harshest

Archea and Bacteria- The PROKARYOTES - Henry County … · kingdom called Monera. ... Found under ice, swamps, guts of cattle, and termites. 4. ... PowerPoint Presentation Author:

Viruses and Prokaryotes · Prokaryotes Recall: Prokaryotes are single celled organisms that lack membrane-bound organelles. Prokaryotes have been on earth for more than 3.5 billion

Life - Eukaryotes and Prokaryotes - CellBiology · Life - Eukaryotes and Prokaryotes Movie - Neutrophil chasing Bacterium Introduction ... bacteria and archaea (single-celled microorganisms

Bacteria. I. Prokaryotes A.Prokaryotes: single-celled organisms that lack a nucleus 1. Eubacteria – walls contain peptidoglycan (a carbohydrate) 2. Archaebacteria

● Organisms are either: Single-celled, such as most prokaryotes and protists or

€¦ · Prokaryotes are single-celled organisms that lack a nucleus. 2. Since prokaryotes do not have organelles, they do not have ribosomes. 3. Bacteria are the most abundant and

Bacteria Notes Page 266. Bacteria: Prokaryotes, so single- celled organisms without nucleus and other organelles like mitochondria

Chapter 19 Bacteria & Viruses 19.1 Prokaryotes. Single-celled Lack nucleus Smallest, most common microorganism

Bacterial Evolution First living cells were prokaryotes Single celled, NO NUCLEUS Change in Earths atmosphere 1 st living organism Archeobacteria

18.4 Bacteria and Archaea KEY CONCEPT Kingdoms Eubacteria and Archaeabacteria are composed of single-celled prokaryotes

Bacteria I.All bacteria are Prokaryotes- single celled organisms that lack a nucleus

Bacteria and Viruses Chapter 18. Bacteria Prokaryotes-single-celled organisms without an nucleus Prokaryotes-single-celled organisms without an nucleus

Biology 1-2 Unit 2 Reading Cells: Prokaryotes and ... · organisms. Bacteria are prokaryotes. They are found only in single-celled and colonial organisms. LACK A NUCLEUS ... A true

Prokaryotes - McGill University · 2010-01-12 · Prokaryotes The Basic Structure Of A Prokaryote Prokaryotes are the single-celled organisms, such as bacteria, and are roughly in

Bacteria and Archea : The Prokaryotes

Bacteria and Viruses Biology II 2007. Bacteria All bacteria are prokaryotes. Prokaryotes are single-celled organisms that lack nuclei. They are

Archea and Bacteria- The PROKARYOTES€¦ · Domain Bacteria-Supergroups 1. Proteobacteria-Gram negative with 5 subgroups. Metabolic diverse photoautotrophs, chemoautotrophs, and

Prokaryotes - Single celled organisms - No membrane bound organelles - ex: no nucleus or mitochondria - Free floating DNA - Bacteria are prokaryotic

The Basics of Bacteria. What are bacteria? Bacteria are single-celled prokaryotes Bacteria are single-celled prokaryotes DNA is not located in a nucleus

Classification of living organisms The Kingdoms All living things are divided into 5 kingdoms: 1.Prokaryotes - Single celled organisms

200 CHAPTER 8 MS Prokaryotes€¦ · organisms on Earth. Recall that prokaryotes are single-celled organisms that lack a nucleus, and that the prokaryotes include bacteria and archaea