Ppt on autotrophic mode of nutrition

The Classification of living organisms R. Llopis-Garcia A2 Biology.

Brown algae Cell structure Eukaryotic Unicellular, colonial and multicellular forms Cell wall Sometimes present (Polysaccharides) Nutrition Autotrophic Hetorotrophic Other notes Classed here if they can’t be placed in any other kingdom therefore /100,000 known speciesFungi Fungi Phyla Chytridiomycota Absorptive mode of nutrition Some are unicellular but most form hyphae (multicellular) Mainly aquatic, some parasites, some saprobes Most primitive form of fungi, possibly evolving from protists with flagella /


Nutrition Process by which organisms obtain and use the nutrients required for maintaining life.

organisms obtain and use the nutrients required for maintaining life Modes of nutrition Ways of obtaining and using nutrients Nutrition Autotrophic nutrition Heterotrophic nutrition Holozoic nutrition Saprophytic nutrition Parasitic nutrition Autotrophic nutrition make their own food (complex organic substances) using simple inorganic substances –the organism  autotrophs e.g. Green plants –by photosynthesisby photosynthesis Heterotrophic nutrition depends on other organisms or dead organic matters as their/


E.g. Bacteria Monera. Learning Objectives Name 3 types of bacterial cell Explain reproduction of bacteria Explain nutrition of bacteria State the factors.

anthracis causes anthrax Bacterial Nutrition Heterotrophic (Take in food) Saprophytic e.g. bacteria of decay Parasitic e.g. Streptococci Autotrophic (make food) Photosynthetic e.g. Purple sulphur bacteria Chemosynthetic e.g. Nitrifying bacteria Learning check Name the three different types of bacteria. By what method do bacteria reproduce. Describe the steps involved in this method of reproduction. Bearing in mind the mode of reproduction involved how do/


What do you need to survive?. Vocabulary Peristalsis Autotrophic nutrition Heterotrophic nutrition Saprophyte Gastric glands Pepsin Diabetes Insulin Glucagon.

Autotrophic nutrition Heterotrophic nutrition Saprophyte Gastric glands Pepsin Diabetes Insulin Glucagon Feedback systems Nutrition: The taking in of materials from the external environment and changing them into a form you can use. Autotrophic Nutrition: The ability to manufacture your own nutrients using energy from the environment Ex. Plants and some bacteria. Heterotrophic Nutrition/ mode=1http://www.youtube.com/watch?v=XxvRbx hqoZk&safety_mode=true&persist_safety_ mode=1 Trace the path of a/


Taxonomy SC.912.L.15.6 Discuss distinguishing characteristics of the domains and kingdoms of living organisms. Source:http://higheredbcs.wiley.com/legacy/college/levin/04716974.

, protista, fungi, plantae & animalia) are separated from one another by characteristics such as cell type, number of cells, mode of nutrition, and cell structures like cell walls and chloroplast. Domains and Kingdoms DOMAIN KINGDOM CELL TYPE CELL STRUCTURES NUMBER OF CELLS MODE OF NUTRITION EXAMPLES Bacteria Eubacteria Prokaryote Cell walls with peptidoglycan Unicellular Autotroph or heterotroph Streptococcus, Escherichia coli Archaea Archaebacteria Prokaryote Cell walls without peptidoglycan Unicellular/


BIOCHEMISTRY Definition: the study of the chemistry of life “The basic goal of the science of biochemistry is to determine how the collections of inanimate.

role of Metabolism Also for mobility, transport of nutrients and so on. Classification of organisms based on trophic (“feed”) strategies Autotrophs—synthesize all cellular components from simple inorganic molecules (e.g, H2O, CO2, NH3, H2S). Autotrophs—synthesize / 1931, Otto Heinrich Warburg: nature and mode of action of the respiratory enzyme. 1931, Otto Heinrich Warburg: nature and mode of action of the respiratory enzyme. Nobel Prizes in revealing the Metabolism of living matter (2) 1934, George Hoyt /


Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings Section A: The World of Prokaryotes 1.They’re (almost) everywhere! An overview.

their environment are chemotrophs. Organisms that need only CO 2 as a carbon source are autotrophs. Organisms that require at least one organic nutrient as a carbon source are heterotrophs. These categories of energy source and carbon source can be combined to group prokaryotes according to four major modes of nutrition. Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings Photoautotrophs are photosynthetic organisms that/


KINGDOM PROTISTA “The Junk Drawer” of Classification.

) are based on physical characteristics (such as motility) and nutritional characteristics (heterotroph/autotroph) First to reproduce sexually; first multicellular organisms Live where ever there is moisture Historically, divided into algae (plant-like) and protozoa (animal-like) Kinds of Protists Use the following slides to complete the table in your notes. Look for: * Distinguishing Characteristics * Mode of Nutrition * Typical Example (sketch it) Rhizopods Ex) Amoeba Flexible surface/


Chapter 10 Photosynthesis. Photosynthesis Chloroplasts Light Reactions Calvin cycle Alternative mechanisms of C-fixation Photorespiration.

photosynthetic –capture light energy from the sun and convert it to chemical energy stored in sugars and other organic molecules. Most other life depends upon plants for food and oxygen Modes of Nutrition Autotrophs Photoautotrophs Chemoautotrophs Modes of Nutrition Autotrophs –“producers” or “self-feeders” –produce their organic molecules from CO 2 –other inorganic raw materials obtained from the environment –Two types photoautotrophs chemoautotrophs/


Protists. Protists Overview Overview Eukaryotic cells Eukaryotic cells Unicellular to multicellular Unicellular to multicellular Autotrophs and heterotrophs.

Aquatic protists give off oxygen and function as producers Part of plankton and serve as food for heterotrophs Part of plankton and serve as food for heterotrophs Protists Classification Classification By modes of nutrition By modes of nutrition Autotrophs – ex. Algae Autotrophs – ex. Algae Heterotrophs – ex. Protozoans Heterotrophs – ex. Protozoans Protists Green algae Green algae Variety of environments Variety of environments Most unicellular Most unicellular Contain chlorophylls a and b Contain/


Ebonie J..  Cell membrane: the outside layer that determines what goes in and what goes out of the cell  Cell wall: mostly in plant cells, covers the.

6. F Consumers  A. an organism that can use sunlight in order to produce its own food (autotroph) B. an organism that only eats producers C. an organism that breaks down dead or decaying organisms D/ organisms need energy  L-Living space, provides amount of water, food, and energy  Digestion: breaking down food for energy  Respiration: gas exchange  Nutrition: intake of food for energy  Excretion: elimination of wastes  Reproduction: producing more of oneself  Develop: change over time  *prediction:/


Lab 8 Chlorophyta, Lichens, Symbiosis. Green Plants Common name: Green plants Synonyms: Viridiplantae Mode of nutrition: Autotrophic; green chloroplasts.

, Lichens, Symbiosis Green Plants Common name: Green plants Synonyms: Viridiplantae Mode of nutrition: Autotrophic; green chloroplasts (some parasitic members) Habitat: Freshwater, marine, terrestrial /Chara Chlorophyta Lichens Fungus and alga Ascomycota and Chlorophyta most common (all examples in lab) Autotrophic Clonal reproduction by soredia or isidia Sexual reproduction by ascospores, followed by parasitism of free-living algae  crustose, foliose, and fruticose Lichens  crustose, from Cal Poly/


Topic 4: Ecology (12 hours)

nutrients is maintained by nutrient cycling. Ecosystems have the potential to be sustainable over long periods of time. Applications and skills: Skill: Classifying species as autotrophs, consumers, detritivores or saprotrophs from a knowledge of their mode of nutrition. Skill: Testing for association between two species using the chi-squared test with data obtained by quadrat sampling. To obtain data for the chi-squared test, an ecosystem/


Elements of Microbial Growth, Nutrition and Environment.

rates are equal Survival mode – depletion in nutrients, released waste can inhibit growth 4. Death Phase A majority of cells begin to die exponentially due to lack of nutrients or build up of waste Slower than the/Carbon source is CO 2 Microbial Nutrition: Autotrophs Chemoheterotrophs: -organic compounds for both carbon and energy source -derive both carbon and energy from processing these molecules through respiration or fermentation -The vast majority of microbes causing human disease are /


Nutrition. Modes of nutrition Heterotrophic nutrition The nutrition obtained by digesting organic compounds. e.g. of heterotrophs include animals and.

Nutrition Modes of nutrition Heterotrophic nutrition The nutrition obtained by digesting organic compounds. e.g. of heterotrophs include animals and fungi. Autotrophic nutrition The nutrition in which organisms make their own food from inorganic molecules. e.g. of autotrophs include plants and algae. Biomolecules Organic molecules are the chemicals of life, compounds composed of more than one type of element, that are found in, and produced by, living organisms. What is the difference between an organic/


BIOLOGY FOR CLASS IX.  Content  Need For Food  Synthesis Of Large Molecules From Smaller Basic Units  Simple Sugar,Starch And Glucose  Fatty Acids.

For Photosynthesis  Factor Effecting Of Photosynthesis  Special Modes Of NutritionNutrition In Memmals  Nutrition In Man  Constitute Of Food  Balance Diet  Digestion In Man  Types Of Teeth  Digestion Process  Disorders Of Gud Food And Nutrition Class IX  We need food/ all plants are photosynthetic autotrophs, as are some bacteria and protists –Autotrophs generate their own organic matter through photosynthesis –Sunlight energy is transformed to energy stored in the form of chemical bonds (a) /


Chapter 27 Prokaryotes. More prokaryotes inhabit a handful of fertile soil or the skin of a human than the total number of people who have ever lived.

of nutrition in eukaryotes is found in prokaryotes, along with nutritional modes unique to prokaryotes. Organisms that obtain energy from light are phototrophs. Organisms that obtain energy from chemicals in their environment are chemotrophs. Organisms that need only CO2 as a carbon source are autotrophs/ Most known prokaryotes are bacteria. Bacteria include the vast majority of familiar prokaryotes. Every major mode of nutrition and metabolism is represented among bacteria. Archaea share certain traits with/


Classification of organisms

The endosymbiosis hypothesis… PROTISTS ?? eukaryotic unicellular/ some multi heterotrophic and autotrophic New classification?? Some plant like some animal like. This is a great example of how the system is constantly changing based on new information!!! Classification of Protists The protists include heterotrophs, autotrophs, and some organisms that can vary their nutritional mode depending on environmental conditions. Protists occur in freshwater, saltwater, soil, and as symbionts within/


Characteristics of Living Things and Classification

products (Excretion) Responding to internal and external stimuli (Sensitivity) Reproducing Helping Vocabulary Number of cells: Nucleus- Yes or No? Multicellular: Made of many cells Unicellular: Made of one cell Nucleus- Yes or No? Eukaryote: Cells contain a nucleus Prokaryote: Cells lack a nucleus Mode of nutrition: Heterotroph: Need to obtain food Autotroph: Can make own food Just to get you thinking! http://www.youtube.com/watch?v/


4/22/2015 Prokaryotes. 4/22/2015 Prokaryotes 1.The World of Prokaryotes. 2.Structure, Function, and Reproduction of Prokaryotes. 3.Nutritional and Metabolic.

only inorganic CO 2 as a carbon source. Heterotrophs requires at least one organic nutrient – glucose. 4/22/2015 Nutritional and Metabolic Diversity Combination of the phototroph-versus-chemotroph (energy source) and autotroph-versus-heterotroph (carbon source) allows grouping prokaryotes to four major modes of nutrition: 1. Photoautotrophs – photosynthetic organisms that use light energy to synthesize organic compounds from CO 2 – cyanobacteria and plants. 4/22/


Chapter 15 The Evolution of Microbial Life Laura Coronado Bio 10 Chapter 15.

organic nutrient—the sugar glucose, for instance—are called heterotrophs. – We can group all organisms according to the four major modes of nutrition if we combine the Energy source (phototroph versus chemotroph) and Carbon source (autotroph versus heterotroph) Laura Coronado Bio 10 Chapter 15 Nutritional ModeEnergy SourceCarbon Source Photoautotroph Chemoautotroph Photoheterotroph Chemoheterotroph Sunlight Inorganic chemicals Sunlight Organic compounds CO 2 Organic compounds Figure 15.UN06/


Microbiology: A Systems Approach, 2nd ed.

essential amino acids) How Microbes Feed: Nutritional Types Main Determinants of Nutritional Type Sources of carbon and energy Phototrophs- Microbes that photosynthesize Chemotrophs- Microbes that gain energy from chemical compounds Autotrophs and Their Energy Sources Photoautotrophs Photosynthetic / enters a survival mode in which cells stop growing or grow slowly The rate of cell inhibition or death balances out the rate of multiplication Depleted nutrients and oxygen Excretion of organic acids and /


Digestive System. Digestion The process of breakdown of complex food molecules into simple molecules. Process involves Ingestion (Intake of Food) Digestion(

) Egestion ( removal of waste as solid form) Classification of organisms on the basis of nutrition Nutrition: The process of intake of food and its conversion into living protoplasm in cells. Autotrophs- Organisms which can prepare their food Heterotrophs- Organism which cannot prepare their own food due to lack of chlorophyll. Holophytic Nutrition: the mode of nutrition in which living organisms use inorganic material to prepare their own food Holozoic Nutrition: The mode of nutrition in which living/


PROTISTS AND FUNGI Chapters 19 and 20. Origin of Eukaryotic Cells  Endosymbiotic Theory  The eukaryotic cell probably originated as a community of prokaryotes.

host cellPhotosynthetic eukaryotic cell Mitochondrion Photosynthetic prokaryote Mitochondrion Chloroplast KINGDOM PROTISTA DOMAIN EUKARYA Domain Eukarya Kingdom Protista  Characteristics of a Protist:  Often characterized by what they are NOT  Not animals, plants, or fungi  Diverse group of 200,000 organisms  Cell type: EUKARYOTES  Mode of Nutrition: Heterotrophs and autotrophs  Habitat: water or moist soil; some live in animals causing disease Categorizing Protists 1) Animal-like (Protozoans) 2/


Characteristics of Living Things and Classification What makes something living? How do we organize living things?

a nucleus Prokaryote: Prokaryote: Cells lack a nucleus Cells lack a nucleus Mode of nutrition: Mode of nutrition: Heterotroph: Heterotroph: Need to obtain food Need to obtain food Autotroph: Autotroph: Can make own food Can make own food http://www.nature.com/scitable/content/Biology-Is-Studied-at-Many-Levels-of-35665 Website with nice graphics of levels of biological organization: The Five Kingdoms: The 5 Kingdoms Similarities and Differences in/


Kingdoms of the Living World Classically 2 Kingdoms Classically 2 Kingdoms They were : They were : Plants Plants Animals Animals.

, rather than swimming Moves on substrate, rather than swimming Autotrophs- self feeding Autotrophs- self feeding Heterotrophs – eat others Heterotrophs – eat others Holozoic- eat pieces of food Holozoic- eat pieces of food Saprozoic- absorb nutrients across cell membrane - molecular level Saprozoic- absorb nutrients across cell membrane - molecular level Nutrition Nutrition in various groups Chlorophyta - Autotrophs Chlorophyta - Autotrophs Ameoba-like animals Ameoba-like animals Phagocytosis Phagocytosis/


Chapter 1: Sorting Out Living Things Zoology- the scientific study of animal life * Anatomy: study of the structure of living thing * Physiology: study.

membrane bound organelles – Nucleus surrounds and protects genetic material (DNA/RNA) Cellular Organization Multicellular – Organisms composed of many cells Unicellular – Organisms composed of one cell Mode of Nutrition Autotrophic – Organisms that can make their own food – Producers Heterotrophic – Organisms that obtain their food from an outside source – consumers Mode of Nutrition Types of Heterotrophic Organisms: a)Ingestive: an animal or protist that obtains it nutrients by ingesting organic material/


Classification of organisms

eukaryotes diverged from prokaryotes closer to 2 billion years ago. Fossils do not yet agree with this date. PROTISTS eukaryotic unicellular/ some multi heterotrophic and autotrophic Classification of Protists The protists include heterotrophs, autotrophs, and some organisms that can vary their nutritional mode depending on environmental conditions. Protists occur in freshwater, saltwater, soil, and as symbionts within other organisms. Due to this tremendous diversity, classification/


TThe nutrients enable living organisms to build their bodies, to grow, to repair their damaged parts of their bodies and provide the energy to carry.

insect is digested by the digestive juices secreted in the pitcher TThe mode of nutrition which organisms take nutrition in solution form from dead and decaying matter is called saptrotopic nutrition. Fungus on mushroom  Fungi growing on bread YYou learnt plant /  Plants who eat insect are called ………. Hetrotrophs Autotrophs next back Right answer next back Wrong answer SSolar energy is stored in the form of food in the leaves with the help of ………….. Guard sell chlorophyll next back Right answer next /


Characteristics of Living Things and Classification What makes something living? How do we organize living things?

cell Nucleus? Nucleus? Eukaryote: Eukaryote: Cells contain a nucleus Cells contain a nucleus Prokaryote: Prokaryote: Cells lack a nucleus Cells lack a nucleus Mode of nutrition: Mode of nutrition: Heterotroph: Heterotroph: Need to obtain food ex. man Need to obtain food ex. man Autotroph: Autotroph: Can make own food ex. plants Can make own food ex. plants The Five Kingdoms: The Video Clip VII. The 5 Kingdoms Similarities/


Bacteria are the oldest, the simplest, and the most numerous forms of life.

- cannot survive in the presence of atmospheric oxygen. Facultative anaerobes - can live with or without atmospheric oxygen. Obligate aerobes - cannot survive without atmospheric oxygen. Endospores – stand-by mode … … a dormant, tough,/Nutrition Most are heterotrophic - use food produced by other organisms. –Bacteria that feed on dead or decaying organic matter are heterotrophic bacteria called saprophytes. Some are autotrophic - able to produce their own food. –Photoautotrophs - use sunlight as a source of/


Chapter 20- Protists. Characteristics of Kingdom Protista eukaryotic cell type classified by mode of nutrition (how they get their food)- ingest, photosynthetic,

Protista eukaryotic cell type classified by mode of nutrition (how they get their food)- ingest, photosynthetic, OR decompose/parasites most diverse kingdom; “catch-all” kingdom mostly /animal, a fungus, or a prokaryote. A. True B. False 20-1 –Funguslike protists are A. autotrophic. B. photosynthetic. C. decomposers or parasites. D. chemosynthetic. 20-1 –Animal-like protists are A. autotrophs. B. heterotrophs. C. decomposers. D. producers. 20-1 –Biologists have difficulties classifying protists because A. /


2/29  Evidence of endosymbiosis Spring Break plans  Ecology Unit!

 Prokaryotes can be categorized by how they obtain energy and carbon  Phototrophs obtain energy from light  Chemotrophs obtain energy from chemicals  Autotrophs require CO 2 as a carbon source  Heterotrophs require an organic nutrient to make organic compounds  Energy and carbon sources are combined to give four major modes of nutrition  Photoautotrophy  Chemoautotrophy  Photoheterotrophy  Chemoheterotrophy  The transition to multicellularity in animals involved new ways/


DIVERSITY IN LIVING ORGANISM S

etc. are present. They do not exhibit division of labor. (4) Method of nutrition :    They are autotrophic, heterotrophic and symbiotic methods of nutritions. Accordingly, protista are classified into autotrophs, phagotrophs or heterotrophs and symbionts. e.g. Algae/ Cellwall and Scattered ribosomes are representative characters of fungi. The fungal cell wall is composed of glucans and chitin (3) Nutrition :  They exhibit saprophytic or parasitic mode of nutrition. (4) Body organization :  Their body /


CHAPTER 27 PROKARYOTES AND THE ORIGINS OF METABOLIC DIVERSITY

This mode is restricted to prokaryotes. Chemoheterotrophs must consume organic molecules for both energy and carbon. This nutritional mode is found widely in prokaryotes, protists, fungi, animals, and even some parasitic plants. The majority of known/. Heterotrophic groups represent a loss of photosynthetic ability during evolution. The early evolution of cyanobacteria is also consistent with an early origin of photosynthesis. Cyanobacteria are the only autotrophic prokaryotes that release O2 by splitting/


Classification.

can produce toxic chemicals Kindgom Plantae (Domain Eukarya) Eukaryotic - nucleus and membrane bound organelles Multicellular Plants Nonmotile Special Organelles (that animals don’t have) – 1) Cell walls made of cellulose, 2)Chloroplast, 3)Central vacuoles Mode of Nutrition Autotrophic - Produce own food through photosynthesis Kingdom Animalia (Domain Eukarya) Eukaryotic - nucleus and membrane bound organelles animals Multicellular Motile Lack rigid cell walls, chloroplasts, and central vacuoles/


Q: Is human evolution a ladder with a series of steps leading directly from an anthropoid ancestor to Homo sapiens? A: No. It is like a multibranched.

is an alternative to the Five-Kingdom system. The three domains include: two domains of prokaryotes, the Bacteria, and Archaea, and one domain of eukaryotes, called Eukarya. Eukarya consists of Fungi, Protists, Plantae, Animalia. DOMAIN KINGDOM CELL TYPE CELL STRUCTURES NUMBER OF CELLS MODE OF NUTRITION EXAMPLES Bacteria Eubacteria Prokaryote Cell walls with peptidoglycan Unicellular Autotroph or heterotroph Streptococcus, Escherichia coli Archaea Archaebacteria Prokaryote Cell walls without peptidoglycan/


Ch 16 Prokaryotes Thrive in moderate & extreme environments Found everywhere (ubiquitous) Some are beneficial (good) Some are harmful Earliest forms of.

a very fast rate under the right conditions. Prokaryotic cells copy their DNA almost continuously and divide repeatedly. called binary fissionbinary fission Modes of Nutrition "mode of nutrition" describes how organisms obtain energy and carbon atoms. –energy by photosynthesis = photo- –Energy from chemical sources = chemo- –Autotrophs obtain carbon atoms from CO 2 –Heterotrophs obtain carbon from existing organic molecules (such as those in food). Adding a prefix/


Bacteria Energy & Respiration. How Bacteria Obtain Energy  Some bacteria can make their own food These are called AUTOTROPHS  Some bacteria require.

AUTOTROPHS  There are two types of AUTOTROPHS 1. Phototrophic 2. Chemotrophic Phototrophic Autotrophs  They use the sun’s energy to make their own food (sugar)  Eg’s : Cyanobacteria and photsynthetic Eubacteria Chemotrophic Autotrophs/of heterotrophs 1. Phototrophic 2. Chemotrophic 3. Saprotrophic Phototrophic Heterotrophs  These bacteria are able to use sunlight to produce food molecules but ALSO require organic compounds for nutrition/ classifications of bacteria based on their mode of respiration 1/


Topic 4.1 – Species, Communities, Ecosystems Understandings  Species are groups of organisms that can potentially interbreed to produce fertile offspring.

nutrients is maintained by nutrient cycling.  Ecosystems have the potential to be sustainable over long periods of time Topic 4.1 – Species, Communities, Ecosystems Skills and Applications  Skill: Classifying species as autotrophs, consumers, detritivores or saprotrophs from a knowledge of their mode of nutrition.  Skill: Setting up sealed mesocosms to try to establish sustainability. (Practical 5)  Skill: Testing for association between two species using the chi/


طرق العيش في البكتيريا Mode of living in Bacteria يمكن ان تصنف البكتيريا نظرا لمتطلبات الاكسجين إلى : Considering the oxygen demands of bacteria, it can.

, it can be classified into: 1.Aerobes. They require free supply of oxygen. 2. Anaerobes They grow in complete absence of oxygen. 3. Facultative aerobes They can live either in presence or absence of oxygen. هوائيةلاهوائية هوائية إختيارية Mode of living in Bacteria  If we consider the mode of nutrition, bacteria can be divided into two categories: 1. Autotrophic. They can build up complex organic substances such as carbohydrates from simple inorganic/


Warm Up and HW What are the defining characteristics of Kingdom Protista? What are the defining characteristics of Kingdom Protista? HW: Current Event,

autotrophic, some are heterotrophic; some are autotrophic, some are heterotrophic; some are multicellular, most are unicellular. some are multicellular, most are unicellular. They are classified by the way they OBTAIN NUTRITION. Three kinds of /are “Animal-like” protists that consume their food (heterotrophs) Unicellular Unicellular characterized by modes of locomotion (how they move) characterized by modes of locomotion (how they move) Zooflagellates Characteristics: move by flagella (one or two) /


Three Domains of Life Protists. The Three Domains of Life Organisms are placed into domains and kingdoms based on their cell type, their ability to make.

Eukarya) Largely unicellular with some multi-cellular ‘exceptions’ (e.g., kelps, seaweed) May be autotrophic or heterotrophic Debate over classification – –Are some protists members of other kingdoms? –Would protists best be considered as several different kingdoms? Kingdom Protista Characterized by: –Mode of locomotion (e.g., flagella, cilia) –Mode of nutrition (e.g., autotrophic, heterotrophic) –Body form (unicellular, multicellular) –Pigmentation (e.g., Red, Green, Brown alga) –Reproduction (asexual/


Biological Classification Taxonomy = the science of naming and classifying species Taxon = a category that organisms are placed into Ex: species or kingdom.

), contd See previous prokaryote listing Monera can be classified in a number of ways Nutritional Classification –May be autotrophs or heterotrophs –Autotrophic prokaryotes may produce food through photosynthesis, but may use different raw materials / to high salt conditions –Thermophiles Adapted for high temperature & acidic conditions Eubacteria May be categorized by mode of acquiring nutrients, mechanism of movement, their shape, etc, Three basic shapes include: –Bacilli = Rod-shaped bacteria –Spirilla =/


Elements of Microbial Growth, Nutrition and Environment.

rates are equal Survival mode – depletion in nutrients, released waste can inhibit growth 4. Death Phase A majority of cells begin to die exponentially due to lack of nutrients or build up of waste Slower than the/organic molecules using CO 2 Microbial Nutrition: Autotrophs Chemoheterotrophs: -organic compounds for both carbon and energy source -derive both carbon and energy from processing these molecules through respiration or fermentation -The vast majority of microbes causing human disease are /


1 Classification. 2 What is Classification? Classification/taxonomy is the arrangement of organisms into orderly groups based on their similarities Taxonomists.

Your assignment Write a letter explaining the classification of living things. You must describe each kingdom from the Eukarya domain in detail. Include cell type, cell structures, number of cells, mode of nutrition and some examples this person may have heard of. REMEMBER, this person most likely does not understand what the terms eukaryotic, prokaryotic, unicellular, multi-cellular, autotrophs, heterotrophs or various cell structures mean. Be sure/


Topics 11&12 The Protists & the Origin of Eukaryotes Biology 1001 October 24-28, 2005.

Physarum polychalum, a slime mold Amoeba sp., a gymnamoeba A radiolarian The Functional & Structural Diversity of Protists Nutrition  Protists can be photoautotrophic, chemoheterotrophic, or mixotrophic  Mode of nutrition not phylogenetically informative but ecologically useful  Ingestive heterotrophs (animal-like) = protozoa  Absorptive heterotrophs (fungus-like) = no general name  Autotrophs (plant-like) = algae Habitat  Most are aquatic, preferring moist environments  Seas, ponds, lakes, moist/


Classification of Living Things Chapter 18

PlantaeFungiProtista EubacteriaArchaebacteria Animalia DOMAIN KINGDOM CELL TYPE CELL STRUCTURES NUMBER OF CELLS MODE OF NUTRITION EXAMPLES Bacteria ____________ Prokaryote Cell walls with peptidoglycan Unicellular Autotroph or heterotroph Streptococcus, Escherichia coli Archaea Archaebacteria Prokaryote Cell walls without peptidoglycan _____________ Autotroph or heterotroph Methanogens, halophiles Protista Eukaryote Cell walls of cellulose in some; some have chloroplasts Most unicellular; some colonial/


LECTURE PRESENTATIONS For BROCK BIOLOGY OF MICROORGANISMS, THIRTEENTH EDITION Michael T. Madigan, John M. Martinko, David A. Stahl, David P. Clark Lectures.

(by dry weight) –Major element in all classes of macromolecules –Heterotrophs use organic carbon –Autotrophs use inorganic carbon © 2012 Pearson Education, Inc. 4.1 Nutrition and Cell Chemistry Nitrogen –Typical bacterial cell ~12% nitrogen/of fatty acids –Phytanyl biosynthesis is distinct from that of fatty acids © 2012 Pearson Education, Inc. 4.16 Regulating the Activity of Biosynthetic Enzymes Two major modes of enzyme regulation –Amount Regulation at the gene level –Activity Temporary inactivation of/


Nutrition = how an organism obtains

within the biosphere exchange molecules and energy Energy of sunlight Useful chemical bond energy (e.g. some bacteria, animals, humans) complex carbon, glucose, amino acids CO2, H2O Autotrophs: Phototrophs & chemotrophs Heterotrophs Chemical oxidations (via/enzyme, recognizes many molecules carrying nitro group (like trinitrotoluene: TNT). Many bacteria important in bioremediation! Two nutritional modes are unique to prokaryotes Chemoautotrophs use CO2 as a carbon source, but they obtain energy by oxidizing /


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