2. Biological Classification Flashcards
___________ was the earliest to attempt a scientific basis of classification
Aristotle
Aristotle classified plants into - (3)
Trees, shrubs and herbs
He divided animals into _______ no of groups, one with ______ and one that did not.
Had red blood and those that did not
In Linnaeus time, _______ kingdom system of classification was used
2
The 2 kingdom system of classification didn’t distinguished between - (3)
Prokaryotes & Eukaryotes, Unicellular & multicellular, Photosynthetic & non-photosynthetic
The 2 kingdom system classification was totally based on -
Mode of nutrition, presence or absence of cell wall
In 2 kingdom classification, the bacteria was included under ‘Animals’. T/F
F, it was included under Plants
Monera cell wall is made up of _______ and ________
Polysaccharide + amino acid
Monera show autotrophic nutrition by acting as a - (2)
Chemosynthetic & Photosynthetic bacteria
Monera show heterotrophic nutrition by acting as a - (2)
Saprophytic & parasitic bacteria
Cellulose is present in cell wall of fungi. T/F
F. chitin is present
Mode of nutrition in fungi is - (2)
Saprophytic and parasitic
All protists don’t contain a cell wall. T/F
Fungi
T
F. they can be saprophytic
Animal
1969
F
Algae
cell structure, body organisation, mode of nutrition, reproduction and phylogenetic relationships
Protista, Chlamydomonas and Chlorella, Paramoecium and Amoeba
DigaQ. 1-A-Cocci, B - Bacilli, C - Spirilla, D-Vibrio: X-Spore, Y - Flagellum
Based on evolutionary relationship
Bacteria
T
T
Cocci, bacillus, vibrium, spirillum
F
Bacteria
F. mostly bacteria are heterotroph but not all
Archaebacteria
halophiles (extreme salty areas), thermoacidophiles (hot springs) & methanogens (marshy areas)
Different cell wall structure, branched chain lipids (phytanyl side chains)
Same as 33 and also absence of peptidoglycan
Methanogens
Chemoautotrophs
DigaQ. 2- Nostoc: A -Heterocyst, B-Mucilaginous sheath
T
F. it contains flagella
Blue green algae, chl a
Green plants
F. photosynthetic autotroph
T
F, it is filamentous
T
Gelatinous sheath
Blooms
Heterocysts
Anabaena, Nostoc
Chemosynthetic autotrophs, nitrates, nitrites, ammonia
Chemosynthetic autotrophs, N. P. Fe, S
Decomposers
Heterotrophic
DigaQ. 3-A-Cell wall, B - Cell membrane, C-DNA
F. they do fixation in legume roots
Cholera (Vibrio cholerae), typhoid (Salmonella typhi), tetanus (Clostridium tetani), citrus canker (Xanthomonas citri)
Filamentous
making curd from milk, production of antibiotics
F. in unfavourable conditions it produce spores
T
T
Mycoplasma
Fission, spore formation, sexual reproduction
Transformation, Conjugation, Transduction
T
F. fresh water also
F, can survive
Aquatic
Chrysophytes, Dinoflagellates, Euglenoids, Slime moulds and Protozoans
F. pathogenic in both plants and animals
Mycoplasma
Single celled eukaryotes
F. both sexually and asexually
F. both cilia and flagella
DigaQ. 4-A-Dinoflagellates, B - Euglena, C-Slime mould, D -Paramoecium
Diatoms and Golden algae (desmids)
thin, Soap box
Those who float passively in water currents
F. most are photosynthetic
Silica, indestructible
Cell wall deposits of diatoms
Polishing, filtration of oils and syrups
Yellow, green, brown, blue, red
Diatoms
Marine, photosynthetic
Rapid multiplication of red dinoflagellates
Stiff cellulosic plates
F. two flagella
T
Fresh
Gonyaulax
T
F. they kill them
Pellicle, protein
Pellicle
T