Match the scientists in Column I with their contributions in Column II.
Column I
Column II
A. Aristotle B. Linnaeus C. R.H. Whittaker D. Three-domain system
1. Proposed the Five Kingdom Classification 2. Developed the Two Kingdom Classification 3. Resulted in a six kingdom classification 4. Classified animals based on the presence or absence of red blood
Aristotle classified animals based on red blood; Linnaeus proposed the Two Kingdom Classification; R.H. Whittaker proposed the Five Kingdom Classification; the Three-domain system results in a six kingdom classification.
Question 252 of 300
📘 CLASS XI
Match the morphological categories of bacteria in Column I with their shapes in Column II.
Coccus is spherical, Bacillus is rod-shaped, Vibrio is comma-shaped, and Spirillum is spiral.
Question 253 of 300
📘 CLASS XI
Match the specific groups of Monerans in Column I with their characteristics or habitats in Column II.
Column I
Column II
A. Halophiles B. Thermoacidophiles C. Methanogens D. Cyanobacteria
1. Present in the gut of ruminants and produce biogas 2. Live in extreme salty areas 3. Live in hot springs 4. Have chlorophyll a and specialised cells called heterocysts
Halophiles live in salty habitats, thermoacidophiles in hot springs, methanogens produce biogas, and cyanobacteria possess chlorophyll a and heterocysts.
Question 254 of 300
📘 CLASS XI
Match the Protistan groups in Column I with their distinguishing features in Column II.
Column I
Column II
A. Diatoms B. Dinoflagellates C. Euglenoids D. Slime moulds
1. Possess a protein-rich layer called a pellicle 2. Form an aggregation called a plasmodium under suitable conditions 3. Cause red tides (e.g. Gonyaulax) 4. Have indestructible cell walls embedded with silica
Diatoms have silica walls, dinoflagellates cause red tides, euglenoids possess a pellicle, and slime moulds form plasmodia.
Question 255 of 300
📘 CLASS XI
Match the groups of Protozoans in Column I with their examples in Column II.
Column I
Column II
A. Amoeboid protozoans B. Flagellated protozoans C. Ciliated protozoans D. Sporozoans
Entamoeba is amoeboid, Trypanosoma is flagellated, Paramoecium is ciliated, and Plasmodium is a sporozoan.
Question 256 of 300
📘 CLASS XI
Match the classes of Fungi in Column I with their common examples in Column II.
Column I
Column II
A. Phycomycetes B. Ascomycetes C. Basidiomycetes D. Deuteromycetes
1. Rhizopus and Albugo 2. Neurospora and Saccharomyces 3. Agaricus and Puccinia 4. Alternaria and Trichoderma
Phycomycetes include Rhizopus and Albugo; Ascomycetes include Neurospora and Saccharomyces; Basidiomycetes include Agaricus and Puccinia; Deuteromycetes include Alternaria and Trichoderma.
Question 257 of 300
📘 CLASS XI
Match the classes of Fungi in Column I with their sexual spore production features in Column II.
Column I
Column II
A. Phycomycetes B. Ascomycetes C. Basidiomycetes D. Deuteromycetes
1. Sexual spores are completely unknown 2. Zygospore formed by fusion of two gametes 3. Ascospores produced endogenously in asci 4. Basidiospores produced exogenously on the basidium
Phycomycetes form zygospores, Ascomycetes produce ascospores, Basidiomycetes produce basidiospores, and Deuteromycetes have no known sexual stage.
Question 258 of 300
📘 CLASS XI
Match the organisms in Column I with their nutritional characteristics in Column II.
Column I
Column II
A. Bladderwort B. Cuscuta C. Bacteria D. Animalia
1. Parasitic plant 2. Insectivorous plant 3. Holozoic nutrition 4. Show the most extensive metabolic diversity
Bladderwort is insectivorous, Cuscuta is parasitic, bacteria show the greatest metabolic diversity, and animals exhibit holozoic nutrition.
Question 259 of 300
📘 CLASS XI
Match the scientists in Column I with their discoveries regarding acellular agents in Column II.
Column I
Column II
A. Dmitri Ivanowsky (1892) B. M.W. Beijerinck (1898) C. W.M. Stanley (1935) D. T.O. Diener (1971)
1. Crystallised viruses 2. Coined Contagium vivum fluidum 3. Discovered viroids 4. Recognised the causal microbes of tobacco mosaic disease
Ivanowsky recognised TMV, Beijerinck coined Contagium vivum fluidum, Stanley crystallised viruses, and Diener discovered viroids.
Question 260 of 300
📘 CLASS XI
Match the infectious agents in Column I with the specific diseases they cause in Column II.
Column I
Column II
A. Virus B. Viroid C. Prion D. Bacteria
1. Potato spindle tuber disease 2. Bovine spongiform encephalopathy (Mad cow disease) 3. Cholera, Typhoid and Tetanus 4. Mumps, Smallpox and AIDS
Viruses cause mumps, smallpox and AIDS; viroids cause potato spindle tuber disease; prions cause BSE; bacteria cause cholera, typhoid and tetanus.
