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Do Now: Use your notes and hw 1.What are the 3 shapes of bacteria? 2.What is the function of the capsule? 3.What is a nucleoid?
Where do we find bacteria?
Review What is a prokaryote? –Cells without membrane bound nucleus –Most surrounded by a cell wall –Many secrete a slime capsule- protection –Lack organelles
How big is a prokaryotic cell? 1-5 micrometers A micrometer, also written µm, is one thousandth of a millimeter - it's 10 -6 m.
Classification of Prokaryotes Eubacteria –Surrounded by a cell wall containing peptidoglycan Example: Rhizobium
Classification of Prokartyotes Archaebacteria –Surrounded by a cell wall lacking peptidoglycan Example: Methanogen
How do we identify Prokaryotes? 1.Shape Three groups: 1.Coccus: spherical 2.Bacillus: rod shaped 3.Spirillum: spiral
Motility Flagella Slime secretion Spiral motion
Obtaining energy Autotroph –Makes own food Heterotroph –Ingests nutrients
1.photoautotroph Carry on photosynthesis
2. chemoautotroph Gain energy from inorganic molecules
3. Photoheterotrophs Photosynthesis AND ingestion of organic compounds
Obligate aerobes –Require oxygen Obligate anaerobes –Must live in the absence of oxygen Facultative anaerobes –Can live with or without oxygen
Exit ticket What are the three types of movement for bacteria cells? Give an example of Eubacteria. Give an example of Archaebacteria. What are the three different ways bacteria can obtain energy?
Standard IX- Five and Six Kingdom Classifications (2 questions)
Bacteria. Bacteria Microscopic organisms that are prokaryotes Microscopic organisms that are prokaryotes Make up two kingdoms of the classification system:
And Bacterial Creepers I study the lives on a leaf:the little Sleepers, numb nudgers in cold dimensions Beetles in caves, newts, stone-deaf fishes, Lice.
Kingdom Monera (Bacteria and Archaebacteria)
1 Chapter 19 Bacteria & Viruses. 2 19–1 Bacteria Prokaryote = single-celled organism lacking a nucleusProkaryote = single-celled organism lacking a nucleus.
Prokaryote: no nucleus –Chromosome & plasmids float freely in cytoplasm Ribosomes: create proteins Flagella: used in movement Pili: act as anchors Capsule:
PROKARYOTE Bacteria. Two Types Eubacteria Live in many places Cell wall protects and gives shape Peptidoglycan Archaebateria No peptidoglycan.
Alberts, Bray, Hopkins, Johnson Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Professor: Dr. Barjis Room: P313 Phone: (718)
1 Prokaryotes Chapter Prevalence of Prokaryotes Prokaryotes are the oldest, abundant for over 2 billion years before the appearance of eukaryotes.
Bacteria and Viruses Ch. 19 Page 470. Bacteria 19-1 Bacteria are prokaryotes Bacteria are prokaryotes That is, they contain no nucleus That is, they contain.
Archaebacteria: bacteria that lacks the peptidoglycan layer in its structure- Older (in time) bacteria ◦ Live in oxygen free environment ◦ Produce.
Bacteria & Viruses Also Known As… Why We Beat the Aliens at the End of “War of the Worlds”
Marconi Bacteria consist of only a single cell, but don't let their small size and seeming simplicity fool you. They're an amazingly complex and.
Biology 112 BACTERIA AND VIRUSES. Smallest and most common microorganisms Unicellular organisms that lack a nucleus They can be divided into two.
Chapter 18. Domain Archaea Only one kingdom: Archaebacteria ▪ Cells contain cell walls ▪ Live in extreme environments (hot, acidic, salty, no O 2.
Prokaryote Microorganisms 11.0 Classify animals according to type of skeletal structure, method of fertilization and reproduction, body symmetry, body.
18.1 Bacteria Objectives: 8(C) Compare characteristics of taxonomic groups, including archaea, bacteria, protists, fungi, plants, and animals. 11(C) Summarize.
Prokaryotes Chapter 27. Slide 2 of 20 Kingdom Monera Prokaryotes Unicellular (Single-celled) organisms that lack membrane-bound organelles and nuclei.
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