Match the specific diseases in Column I with their causative agents in Column II.
Column I
Column II
A. Red tides
1. Plasmodium (Sporozoan)
B. Sleeping sickness
2. Bacteria
C. Malaria
3. Gonyaulax (Dinoflagellate)
D. Typhoid
4. Trypanosoma (Flagellated protozoan)
Red tides are caused by Gonyaulax. Sleeping sickness is caused by Trypanosoma. Malaria is caused by Plasmodium. Typhoid is caused by bacteria.
Question 272 of 300
📘 CLASS XI
Match the fungal terminology in Column I with its definition in Column II.
Column I
Column II
A. Coprophilous
1. Depending on living plants and animals
B. Saprophytic
2. Growing on dung
C. Parasitic
3. A mutually useful association with algae or plant roots
D. Symbiotic
4. Absorbing soluble organic matter from dead substrates
Coprophilous fungi grow on dung. Saprophytes absorb nutrients from dead matter. Parasites depend on living hosts. Symbiotic fungi form mutual associations.
Question 273 of 300
📘 CLASS XI
Match the biological structures in Column I with their specific descriptions in Column II.
Column I
Column II
A. Capsid
1. A notorious malarial parasite
B. Plasmodium (Slime mould)
2. An aggregation formed under suitable conditions that can spread over feet
C. Plasmodium (Protozoan)
3. Structures bearing spores
D. Fruiting bodies
4. The protein coat protecting viral nucleic acid
Capsid protects viral nucleic acid. Slime mould plasmodium is an aggregation. Protozoan Plasmodium causes malaria. Fruiting bodies bear spores.
Question 274 of 300
📘 CLASS XI
Match the Kingdoms in Column I with their body organisation and nutrition in Column II.
4. Tissue/organ/organ system organisation & Holozoic nutrition
Fungi are multicellular heterotrophs. Plantae are autotrophic. Monera are prokaryotic. Animalia possess organ systems and holozoic nutrition.
Question 275 of 300
📘 CLASS XI
Match the specific economic/scientific examples in Column I with their classifications in Column II.
Column I
Column II
A. Morels and truffles
1. Edible delicacies (Ascomycetes)
B. Neurospora
2. The common bread mould (Phycomycetes)
C. Penicillium
3. A multicellular Ascomycete (Source of antibiotics)
D. Rhizopus
4. Used extensively in biochemical and genetic work (Ascomycetes)
Morels and truffles are edible Ascomycetes. Neurospora is used in genetics. Penicillium is an antibiotic-producing ascomycete. Rhizopus is the common bread mould.
Question 276 of 300
📘 CLASS XI
Match the Kingdoms in Column I with their Mode of Nutrition in Column II based on Whittaker’s Five Kingdom Classification.
Column I
Column II
A. Monera
1. Autotrophic (Photosynthetic) and Heterotrophic
B. Protista
2. Heterotrophic (Holozoic / Saprophytic etc.)
C. Plantae
3. Autotrophic (Chemosynthetic and Photosynthetic) and Heterotrophic
D. Animalia
4. Autotrophic (Photosynthetic)
According to Whittaker's classification: Monera shows autotrophic (photosynthetic and chemosynthetic) and heterotrophic nutrition; Protista may be autotrophic or heterotrophic; Plantae are photosynthetic autotrophs; Animalia are heterotrophic.
Question 277 of 300
📘 CLASS XI
Match the organisms in Column I with their earlier classification groups (before Whittaker's system) in Column II.
Column I
Column II
A. Bacteria and Cyanobacteria
1. Placed in the Animal kingdom because they lacked a cell wall
B. Chlamydomonas and Spirogyra
2. Grouped with autotrophic green plants despite being heterotrophic
C. Paramoecium and Amoeba
3. Placed together under Plants because they had a cell wall
D. Fungi
4. Placed together under Algae, ignoring unicellular/multicellular differences
Earlier systems grouped bacteria with plants because of the cell wall, Chlamydomonas and Spirogyra under algae, Amoeba and Paramoecium under animals, and fungi with plants.
Question 278 of 300
📘 CLASS XI
Match the specific habitats in Column I with the corresponding Archaebacteria in Column II.
Column I
Column II
A. Hot springs
1. Halophiles
B. Extreme salty areas
2. Thermoacidophiles
C. Marshy areas
3. Methanogens
D. Gut of ruminant animals
4. Biogas producers
Thermoacidophiles inhabit hot springs, halophiles inhabit salty areas, methanogens occur in marshes and the gut of ruminants where they produce biogas.
Question 279 of 300
📘 CLASS XI
Match the bacterial features in Column I with their descriptions in Column II.
Column I
Column II
A. Fission
1. A sort of sexual reproduction
B. Spores
2. Smallest living cells known that lack a cell wall
C. Primitive DNA transfer
3. Formed during unfavourable conditions to survive
D. Mycoplasma
4. The main method by which bacteria reproduce
Bacteria reproduce mainly by fission, form spores under adverse conditions, show primitive DNA transfer, and Mycoplasma are the smallest cell wall-less organisms.
Question 280 of 300
📘 CLASS XI
Match the Protistan groups in Column I with their respective pigments/colors in Column II.
Column I
Column II
A. Dinoflagellates
1. Chlorophyll a similar to green plants
B. Euglenoids
2. Pigments identical to those present in higher plants
C. Chrysophytes (Golden algae)
3. Also known as desmids
D. Cyanobacteria
4. Appear yellow, green, brown, blue or red
Dinoflagellates exhibit various colours, Euglenoids possess pigments like higher plants, Chrysophytes include desmids, and Cyanobacteria contain chlorophyll a.
