Match the flagellar arrangements in Column I with the organisms in Column II.
Column I
Column II
A. One longitudinal and one transverse flagellum
1. Euglena
B. One short and one long flagellum
2. Dinoflagellates
C. Thousands of cilia instead of flagella
3. Trypanosoma
D. Flagellated protozoan causing sleeping sickness
4. Paramoecium
Dinoflagellates have one longitudinal and one transverse flagellum, Euglena has one short and one long flagellum, Paramoecium has cilia, and Trypanosoma is flagellated.
Question 282 of 300
📘 CLASS XI
Match the stages of the Slime Mould life cycle in Column I with their features in Column II.
Column I
Column II
A. Suitable conditions
1. Differentiates into fruiting bodies
B. Unfavourable conditions
2. Forms an aggregation called plasmodium
C. Spores
3. Possess true walls and are extremely resistant
D. Spore dispersal
4. Carried by air currents
Slime moulds form plasmodium under suitable conditions, fruiting bodies under unfavourable conditions, resistant spores, and these spores are dispersed by air.
Question 283 of 300
📘 CLASS XI
Match the Protozoan groups in Column I with their defining characteristics in Column II.
Column I
Column II
A. Amoeboid protozoans
1. Have a cavity (gullet) that opens to the outside
B. Flagellated protozoans
2. Move and capture prey using pseudopodia
C. Ciliated protozoans
3. Possess an infectious spore-like stage
D. Sporozoans
4. Either free-living or parasitic forms possessing flagella
Amoeboids use pseudopodia, flagellates possess flagella, ciliated protozoans have a gullet, and sporozoans possess an infectious spore-like stage.
Question 284 of 300
📘 CLASS XI
Match the modes of reproduction in Fungi (Column I) with their specific types (Column II)
Column I
Column II
A. Vegetative reproduction
1. Conidia, sporangiospores or zoospores
B. Asexual reproduction
2. Oospores, ascospores and basidiospores
C. Sexual reproduction
3. Fragmentation, fission and budding
D. Distinct structures for spore production
4. Fruiting bodies
Vegetative reproduction occurs by fragmentation, fission and budding; asexual reproduction by conidia, sporangiospores and zoospores; sexual reproduction by oospores, ascospores and basidiospores.
Question 285 of 300
📘 CLASS XI
Match the specialized Fungi in Column I with their characteristics/roles in Column II.
Column I
Column II
A. Puccinia
1. Unicellular fungi used to make bread and beer
B. Penicillium
2. Extensively used in biochemical and genetic work
C. Neurospora
3. Source of antibiotics
D. Yeast (Saccharomyces)
4. Wheat rust-causing fungus
Puccinia causes wheat rust, Penicillium is a source of antibiotics, Neurospora is widely used in genetics, and Saccharomyces is used in bread and beer production.
Question 286 of 300
📘 CLASS XI
Match the spore production methods in Column I with the correct Fungal classes in Column II.
Column I
Column II
A. Asexual spores produced endogenously
1. Conidia in Ascomycetes
B. Asexual spores produced exogenously
2. Zoospores/Aplanospores in Phycomycetes
C. Sexual spores produced endogenously
3. Basidiospores in Basidiomycetes
D. Sexual spores produced exogenously
4. Ascospores in Ascomycetes
Phycomycetes produce asexual spores endogenously. Ascomycetes produce conidia exogenously and ascospores endogenously. Basidiomycetes produce basidiospores exogenously.
Question 287 of 300
📘 CLASS XI
Match the Kingdom Plantae features in Column I with their descriptions in Column II.
Column I
Column II
A. Bladderwort and Venus fly trap
1. Parasitic plant
B. Cuscuta
2. Chloroplasts
C. Prominent organelles
3. Insectivorous plants
D. Alternation of generations
4. Diploid sporophytic and haploid gametophytic phases
Bladderwort and Venus fly trap are insectivorous plants. Cuscuta is parasitic. Plants possess prominent chloroplasts and exhibit alternation of generations.
Question 288 of 300
📘 CLASS XI
Match the Kingdom Animalia features in Column I with their definitions in Column II.
Column I
Column II
A. Cell wall
1. Holozoic (by ingestion of food)
B. Food reserve
2. By copulation of male and female followed by embryology
C. Mode of nutrition
3. Completely absent
D. Sexual reproduction
4. Glycogen or fat
Animal cells lack cell walls, store food as glycogen or fat, exhibit holozoic nutrition, and reproduce sexually by copulation followed by embryological development.
Question 289 of 300
📘 CLASS XI
Match the symptoms of viral infections in plants (Column I) with their related manifestations (Column II).
Column I
Column II
A. Leaf shape abnormalities
1. Mosaic formation
B. Pigmentation issues
2. Leaf rolling and curling
C. Growth issues
3. Yellowing and vein clearing
D. Distinctive pattern formation
4. Dwarfing and stunted growth
Viral symptoms include leaf rolling and curling, yellowing and vein clearing, dwarfing and stunted growth, and mosaic formation.
Question 290 of 300
📘 CLASS XI
Match the infectious agents in Column I with their key structural features in Column II.
Column I
Column II
A. Virus
1. Symbiotic association of algae and fungi
B. Viroid
2. Abnormally folded protein, similar in size to a virus
C. Prion
3. Free RNA lacking a protein coat
D. Lichen
4. Nucleoprotein with an inert crystalline structure outside the host
Viruses are nucleoproteins, viroids are free RNA molecules without a protein coat, prions are infectious proteins, and lichens are symbiotic associations.
