12 public questions tagged with this topic.
Gross Primary Productivity (GPP) is the total biomass produced by plants before respiration losses are deducted.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Agrobacterium tumefaciens is used for transferring genes into plants in biotechnology.
Ref: NCERT Class 12 Biology Chapter 10: Biotechnology and its Applications Biosafety and Overview of Applications
Thorns of Bougainvillea and tendrils of Cucurbita are homologous structures derived from the same ancestral organ but adapted for different functions.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Evidences of Evolution - Paleontological and Comparative Anatomy
Plants do not have specialized respiratory organs; they exchange gases through stomata and lenticels.
Ref: NCERT Class 11 Biology Chapter 12: Respiration in Plants Respiratory Quotient and Factors Affecting Respiration
Mitochondria are the primary site for aerobic respiration where pyruvic acid is completely oxidized to CO₂ and H₂O, releasing ATP.
Ref: NCERT Class 11 Biology Chapter 12: Respiration in Plants Respiratory Quotient and Factors Affecting Respiration
The Electron Transport Chain produces the highest amount of ATP by oxidative phosphorylation.
Ref: NCERT Class 11 Biology Chapter 12: Respiration in Plants Electron Transport System and Oxidative Phosphorylation
In plants, classes with a few similar characters are assigned to the higher category called division. In animals, the corresponding category is phylum.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
In plants, classes with a few similar characters are assigned to the higher category called division. The corresponding category in animals is phylum.
Ref: NCERT Class 11 Biology Chapter 1: The Living World Taxonomic Categories - Family Order Class Phylum Kingdom
Domain Eukarya encompasses all organisms possessing true membrane-bound nucleus enclosing linear chromosomes complexed with histones, plus endomembrane system including endoplasmic reticulum, Golgi, and mitochondria or derived hydrogenosomes. Membership includes diverse protistan lineages, green plants deriving from primary endosymbiosis of cyanobacterium, multicellular fungi with absorptive nutrition and chitinous walls, and animals with collagen, nervous systems, and embryogenesis. Unified by eukaryotic signature proteins such as ubiquitin, spliceosome, and actin-tubulin cytoskeleton, molecular phylogeny places protists as grade leading to other kingdoms, yet all belong within single eukaryotic domain distinct from prokaryotes.
Ref: Campbell Biology 12th ed., Chapter 26 Domain Eukarya includes protists plants fungi animals; OpenStax Biology Eukarya diversity
HPT protein, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.
Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)
“Lichen” for a plant species sensitive to air pollution, used as an indicator species is. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. A sound explanation connects the stated pattern to a causal pathway and distinguishes it from alternatives that describe different levels of organization or different ecological processes. The remaining alternatives—“Cactus”, “Bamboo”, “Parthenium”—refer to different states, processes, or scales and therefore do not express the same causal relationship. Ecological interpretation requires separating the immediate process from its broader consequence. A mechanism operating through physiology or behavior can scale up to alter survival, reproduction, abundance, distribution, and community structure. Linking the wording to measurable consequences for fitness, abundance, or flux gives the conclusion its scientific meaning and prevents a purely mnemonic interpretation. Field observations could test this account by measuring the proposed driver and the demographic or ecosystem response while controlling plausible confounding factors.
Ref: NCERT Biology Class 12, Ch. 15 Biodiversity and Conservation
“Grasses” for which plant group dominates the savanna biome. This relationship follows from the ecological mechanism represented by the terms in the item, not merely from an association between their names. Terrestrial biomes are distinguished primarily by long-term temperature and precipitation regimes, their seasonality, and the vegetation physiognomy those conditions support. Latitude is informative only because it often covaries with climate. The remaining alternatives—“Trees”, “Shrubs”, “Epiphytes”—refer to different states, processes, or scales and therefore do not express the same causal relationship. Plant growth form integrates water balance, fire, frost, nutrient availability, and growing-season length. Animals respond to the same filters through migration, dormancy, thermoregulation, and dietary specialization. This distinction matters because similar surface patterns can arise through different mechanisms, whereas ecological prediction depends on identifying the mechanism that actually changes rates. The cited framing is therefore most useful when treated as a conditional biological claim, with assumptions about scale and environmental context kept explicit.
Ref: Campbell Biology, Urry et al., 12th Ed., Ch. 52
