Catégories : Tous - bacteria - morphology - domains - taxonomy

par Dhiman Akash Il y a 5 années

935

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The text provides a detailed exploration of various biological classifications and concepts, focusing on bacteria and broader taxonomic categories. It discusses the nature of plasmids, which are small, circular DNA molecules found in bacteria and some multicellular organisms, highlighting their role in defending host cells through toxin production.

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Legend

Archeabacteria: Orange

Animalia: Red

Fungi: Peach

Plantae: Green

Protista: Dark Blue

Eubacteria: Pink

Domains of life: Yellow

Information: Grey

Annotations: White



-Reproduces through Meiosis or Mitosis -Complex organisms -Has a nuclues

-No nucleus -Single celled Prokaryotic organisms

-Single celled -Prokaryotic organisms -No nuclus

-Eukaryotic -Heterotrophic -Multicellular Organisms -Typically develops form a zygote

-Eukaryotes -Typically Multicellular -Heterotropic

-Eukaryotic -Potentially Heterotrophic -Typically Uni-Cellular

-Multi-cellular -Cell walls made of Cellulose -Eukaryotes

Found in all environments around the world (harsh as well.)

-Oldest organisms on earth -Single celled organisms -Part of the prokaryotic orginisms family

-Prokaryotic -Unicellular - Contain Plasmids

Bacteria

Eubacteria

Unicellular
Prokaryotic
Plasmid
Small circular molecule of DNA which is separated from chromosomal DNA, forms in bacteria, commonly found in multi-cellular organisms. It also defends host cells by producing toxins.
Morphology
Spirrilum

Spiral Shaped

Rhodospirrilum

Bacillus

Rod Shaped

Bacillus Subtillus

Coccus

Round Shaped

Streptococci

Archaea

Archaebacteria

Ex. Halobacterium salinarum
Ex. Thermoplasma volcanium
Ex. Sulfolobus acidocaldarius

Taxonomy

Domains Of Life

3 Domains of Life
Eukarya

Animalia

Arthropoda

-Joint appendages -Exo skeleton formed from chitin -Complex systems and lungs for life on land

Hexapoda

Entognatha

Ex. Orchesella cincta

Insecta

Ex.Tabanus sulcifrons

Chelicerates

Pycnogonida

Ex. Achelia transfugoides

Merostromata

Ex. Limulus polyphemus

Arachnida

Ex. Loxosceles reclusa

Crustacea

Ostracoda

Ex. Macroscapha falcis

Branchilopoda

Ex. Artemia salina (shrimp)

Maxillopoda

Ex. Chthamalus stellatus (Barnacle)

Malacostra

Ex. Cancer pagurus

Myriapoda

Symphyla

Ex. Scutigerella immaculata

Pauropoda

Ex. Lestes amicus

Diplopoda

Ex. Narceus americanus

Chilopoda

Ex. Scolopendra gigantea

Mollusca

- Grown feet for movement. -Has a mantle -Feet for locomotion, burrowing (or tentacles for catching prey) -Complex digestive, and circulatory system.

Ex. Cornu aspersum

Platyhelminthes

-Developed segmetation - Multiple body sections and joints -Important for motion in all environments

Ex. Orchipedum tracheicola

Nematoda

- Developed an advanced nervous system - Opening for nutrient intake. -Opening for excreting nutrients

Ex.Ancylostoma duodenale

Cnidaria

-Obtained fully functioning nervous system -Fully functioning visionary senses (eyes)

Ex. Chironex fleckeri

Annelida

-Bilateral symmetry -Contains muscles wrapped around body allowing for movement -Tiny bristles(hairs) around body for grip

Ex. Lumbricus terrestris

Echinodermata

-Radial symmetry -Do not have heads -Nerves that reach out from mouth to each body part

Ex. Asterias rubens

Porifera

-Simplest living organism known - Multi-cellular organisms - 1st animal (fit all characteristics of a living organism) - Developed cells with flagella - Developed stomachs

Ex. Calcareous sponge

Chordata

Evolutionary Milestone

-Has very complex organ systems -Developed a backbone through time

Vertebrae

Gnathostomata

Mammalia

- Fur or hair allows for protection from the environment. - Fully functioning, complex organ and skeletal systems. - Have bilateral symmetry

Placental Mammals

Reproduction Strategy -Offspring purely develops inside the mothers body inside of their placenta -The reproduction strategy of Placental Mammals are superior to Marsupials mainly because the chance of the offspring's survival is much higher since it is enclosed inside of the mothers body which means they have a lower chance of dying.

Ex. Homo sapiens

Marsupials

Reproduction Strategy -Embryo develops outside of mothers body inside of a pouch. -Embryos are born immature. Marsupial reproduction strategy is better than the monotremes reproduction strategy due to the fact that the monotremes strategy consists of laying an egg, separate from the mother, and having to take care of it meaning, preventing prey from catching it, making sure the heat inside is regulated, and making sure that the egg does not hatch prematurely.

Macropus antilopinus

Monotremes

Reproductrion Strategy -Laying eggs

Ex. Ornithorhynchus anatinus

Aves

-Ability to fly -Bones are not very dense(hollow) allowing for flight to be achieved much easier. -Possesses feathers rather than fur.

Ex. Tyto alba

Osteichthyes

-Scales protecting body -Protective flaps to protect gills

Ex. Ocellaris clownfish

Chondrichthyes

Formed Noses/nostrils for sense of smell Aquatic species with jaws Hard exoskeleton/bones important in protecting organs

Carcharodon carcharias

Reptilia

-Has lungs, never gills -Hard bony exoskeleton -Jaws hinges allowing for easier food consumption -Some have the ability to camouflaudge

Ex. Diplodactylidae endemic

Amphibia

- Suitable for living on aquatic, and land environments. - Due to having both gills and lungs -Has bilateral symmetry

Ex. Ambystoma tigrinum

Agnathans

Cephalocordates

Tunicates

Fungi

- Multi or Uni cellular organisms that are not considered plants since they do not photosynthesize due to not having any chloroplasts. Eukaryotes: Contain membrane bound organelles and nucleus Hetertrophs: Dependence on other organisms for nutrients.

Ascomycota

-Most commonly known sac fungi -Contains the most amount of fungi species (around 70,000) Reproduction Method: -Asexually reproduce through a process of budding/fission. -Essentially means it splits DNA in two and replicates itself to the best of its ability.

Ex. Peziza vesiculosa

Zygomycota

-Process of asexual reproduction -Only sexually reproduces when the environment and conditions are unfavorable. Reproduction Method: -Asexually reproduces with the use of spores. -Sexually reproduces with a conjunction method

Ex. Mucorales

Deuteromycota

-Imperfect Fungi -Does not fit under other fungi taxonomic classifications Reproduction Method: -Produce their own spores asexually.

Ex. Aspergillus niger

Basidiomycota

Reproduction Method: -Sexually reproduces through fruiting club fungi

Ex. Basidiomycetes

Plantae

Bryophyta

- Over many years, Bryophytes obtained a waxy cuticle on the surfaces of their leaf which helped retain moisture and acted as a protective film for the plants gametes as well. Allowing them to live on land -Non vascular

Ex. Marchantia polymorpha

Seedless Vascular

- Contains vascular tissues which transport nutrients from the root upwards - Reproduce through uni-cellular haploid spores, spores are lightweight, allowing them to disperse in the wind. - Xylem for transporting water upwards from root - Phloem for transporting sugars and nutrients from the shoot. -Evolved to form a stem for support and exposure to the sun

Ex. Psilotum

Angiosperms

-Sturdy stem allowing for them to face towards the sun -Produces flowers -Contains a root, and a shoot -Shoot system allows for minerals and nutrients to be transported through the plant -Stomata formed for exchange of gasses in and out of the plant. -Root system allows them to firmly be stable in the ground and absorbing nutrients from the minerals.

Hellianthus annuus

Gymnosperms

Adaptation

-Vascular tissues for transportation of nutrients -Root used to obtain nutrients from underground which is then distributed via the xylem and phloem -No fruits in this plant, although the seeds are contained elsewhere in the plant.

Ex. Cycas rumphii

Protista

Fungi-Like

Chytridiomycota

Ex. Sarcoscypha coccinea

Oomycota

Ex. Albugo candida

Dictyostelida

Ex. Dictyostelium discoideum

myxomycota

Ex. Badhamia utricularis

Plant-Like

Pyrrophyta

Ex. Cystodinium cornifax

Chlorophyta

Ex. Eudorina elegans

Euglenophyta

Ex. Euglena gracilis

Rhodophyta

Ex. Gelidiella calcicola

Chrysophyta

Ex. Synura uvella

Phaeophyta

Ex. Dictyota dichotoma

Animal-Like

Sporozoans

Do not have a movement method

Ex. Coccidia oocysts

Ciliates

-Tiny hair like material propel it -Move with cilia (hairs)

Ex. Tintinnopsis campanula

Zooflagellates

-Have flagella which propels the organism utilizing a whipping technique.

Ex. Giardia lamblia

Sarcodines

-Move alongside protoplasm -Protoplasm leads and the rest of the body then slides with it.

Ex. Amoeba Proteus