and Animalia. A new Kingdom, the Chromista was erected and it included all algae whose chloroplasts contain chlorophyll a and c, as well as various colourless forms that are closely related to them. Diatoms, Brown algae, Cryptomonads and Oomycetes were placed under this Kingdom. Activity .
Visit to a pond and record the names of the biotic components of it with the help of your teacher. Tabulate the data and segregate them according to Five Kingdom Classification. Red tide is caused by toxic bloom of Dinoflagellates like Gymnodinium breve and Gonyaulax tamarensis . A major red tide incident in west coast of Florida in the year killed Hundreds and thousands of fishes.
. Bacteria Bacteria Friends or Foes? Have you noticed the preparation of curd in our home? A little drop of curd turns the milk into curd after some time.
What is responsible for this change? Why it Sours? The change is brought by Lactobacillus lactis , a bacterium present in the curd. The sourness is due to the formation of Lactic Anne ne nelida Ne Ne Nematoda Spe pe permatophyta a Charophytaa Bry ryo yophyta Rhodophyt hyta hyta Chlorophyta h Phaeophhyta Pteridophyta Ascom om myco a Basidiomycota e Vertebrate ordata o Protocho a Echinodermata Chaetognatha Coelenterata era fera Porifer phora Cilioph pho hizopoda Rhizopod Rhizopod ria r Bacter Mollusca Mastigophora ra ran Protista Monera Oomycete Bacillariophyta Zygomycota mycete myce Myxomyce Platyhelminthes Dictyostelii Dictyos Dictyosteliidae Animalia Fungi Plantae Arthropoda Cyanophyta ota a d Figure .
: Five Kingdom Classification but some are autotrophic and possess Bacteriochlorophyll ( Chromatium ) • They reproduce vegetatively by Binary fission and endospore formation. • They exhibit variations which are due to genetic recombination and is achieved through conjugation, transformation and transduction. The shape and flagellation of the bacteria varies and is given in Figure . .
Figure . : Shape and flagellation in bacteria Monotrichous Lophotrichous Amphitrichous Peritrichous Atrichous Diplobacillus Bacillus Spirillum Vibrio Coccus Staphylococcus Tetracoccus Sarcina Streptococcus Diplococcus . . Ultrastructure of a Bacterial cell The bacterial cell reveals three layers (i) Capsule/Glycocalyx (ii) Cell wall and (iii) Cytoplasm