Total Number of Question/s - 4619

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  • 1. The Living World - Quiz


    1. Homeostasis is
    a) tendency to change with change in enviornment
    b) tendency to resist change
    c) disturbance in regulatory control
    d) plants and animals extracts used in homeopathy

    2. First life on earth was
    a) cyanobacteria
    b) chemoheterotrophs
    c) autotrophs
    d) photoautotrophs

  • 2. Origin and Evolution of Life - Quiz


    1. Which one of the following statements is correct?
    a) Cro-magnon man's fossil has been found in Ethiopia
    b) Homo erectus is the ancestor man
    c) Neanderthal man is the direct ancestor of Homo sapiens
    d) Australopithecus is the real ancestor of modern man

    2. Darwin's finches provide an excellent evidence in favour of evolution. This evidence comes from the field of
    a) Biogrography
    b) Anatomy
    c) Embryology
    d) Palaenotology

  • 3. Biomolecules - Quiz


    1. Genes are packaged into a bacterial chromosome by
    a) histones
    b) basic proteins
    c) acidic proteins
    d) actin

    2. Which one of the following is not a constituent of cell membrane?
    a) Cholesterol
    b) Glycolipids
    c) Proline
    d) Phospholipids

  • 4. Enzymes - Quiz


    1. What is common among amylase, rennin and trypsin?
    a) These are all proteins
    b) These are proteolytic enzymes
    c) These are produced in stomach
    d) These act at a pH lower than 7

    2. An enzyme brings about
    a) decrease in reaction time
    b) increase in reaction time
    c) increase in activation energy
    d) reduction in activation energy

  • 5. Cell and Cell Division - Quiz


    1. Hammerling's experiments of Acetabularia involved exchanging
    a) cytoplasm
    b) nucleus
    c) rhizoid and stalk
    d) gametes

    2. Plasmodesmata are
    a) liqnified cemented layers between cells
    b) locomotory structures
    c) membranes connecting the nucleus with plasmalemma
    d) connections between adjacent cells

  • 6. Genetics - Quiz


    1. The allele which is unable to express its effect in the presence of another is called
    a) codominant
    b) supplementary
    c) complementary
    d) recessive

    2. In E.coli, during lactose metabolism repressor blinds to
    a) regulator gene
    b) operator genes
    c) structural gene
    d) promoter gene

  • 7. Systematics - Quiz


    1. One of the following includes most closely linked organisms
    a) species
    b) genus
    c) family
    d) class

    2. Linnaeus evolved a system of nomenclature called
    a) mononomial
    b) vernacular
    c) binomial
    d) polynomial

  • 8. Kingdom Monera and Viruses - Quiz


    1. Which one belongs to Monera?
    a) Amoeba
    b) Escherichia
    c) Gelidium
    d) Spirogyra

    2. A few organisms are known to grow and multiply at temperatures of 100-1050C. They belong to
    a) Marine archaebacteria
    b) Thermophilic sulphur bacteria
    c) Hot-spring blue-green (cyanobacteria)
    d) Thermophilic, subaerial fungi

  • 9. Kingdom Protista - Quiz


    1. Trypanosoma belongs to class
    a) Sarcodina
    b) Zooflagellata
    c) Ciliata
    d) Sporozoa

    2. Macro and micronucleus are the characteristic feature of
    a) Paramecium and Vorticella
    b) Opelina and Nictothirus
    c) Hydra and Ballantidium
    d) Vorticella and Nictothirus

  • 10. Kingdom Fungi - Quiz


    1. Yeast-Saccharomyces cerevisiae is used in the industrial production of
    a) Citric acid
    b) Tetracycline
    c) Ethanol
    d) Butanol

    2. There exists a close association between the alga and the fungus within a lichen. The fungus
    a) Provides protection, anchorage and absorption for the alga
    b) Provides food for the alga
    c) Fixes the atmospheric nitrogen for the alga
    d) Release oxygen for the alga

  • 11. Plant Kingdom - Quiz


    1. Ulothrix filaments produce
    a) Isogametes
    b) Anisogametes
    c) Heterogamets
    d) Basidiospores

    2. Dichotomous branching is found in
    a) Fern
    b) Funaria sperms get killed by Pteris sperms
    c) Liveworts
    d) Marchantia

  • 12. Animal Kingdom - Quiz


    1. Besides Annelida and Arthropoda the metamerism is exhibited by
    a) Cestoda
    b) Chordata
    c) Mollusca
    d) Acanthocephala

    2. In which of the following animal, post-anal tail is found?
    a) Earthworm
    b) Lower invertebrate
    c) Scorpion
    d) Snake

  • 13. Morphology of Flowering Plants - Quiz


    1. The plant, which bears clinging roots, is
    a) Trapa
    b) Orchid
    c) Screw pine
    d) Podostemon

    2. Which of the following is a correct pair
    a) Cuscuta - Parasite
    b) Dischidia - Insectivorous
    c) Opuntia - Predator
    d) Capsella - Hydrophyte

  • 14. Anatomy of Plants - Quiz


    1. A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is
    a) Cork cambium
    b) Vascular cambium
    c) Endodermis
    d) Pericycle

    2. Bordered pits are found in
    a) Sieve cells
    b) Vessel wall
    c) Companion cells
    d) Sieve tube wall

  • 15. Plant-Water Relations - Quiz


    1. In a terrestrial habitat which of the following is affected by temperature and rainfall condition?
    a) Translocation
    b) Transpiration
    c) Transformation
    d) Thermodenaturation

    2. Stomata of CAM plants
    a) Open during the night and close during the day
    b) Never open
    c) Are always open
    d) Open during the day and close at night

  • 16. Plant Nutrition - Quiz


    1. A plant requires magnesium for
    a) Holding cells together
    b) Protein synthesis
    c) Chlorophyll synthesis
    d) Cell wall development

    2. Enzyme involved in nitrogen assimilation
    a) Nitrogenase
    b) Nitrate reducatase
    c) Transferase
    d) Transaminase

  • 17. Photosynthesis - Quiz


    1. As compared to a C3 - plant, how many additional molecules of ATP are needed for net production of one molecule of hexose sugar by C4 - plants
    a) 2
    b) 6
    c) 12
    d) Zero

    2. In C3 - plants, the first stable product of photosynthesis during the dark reaction is
    a) Malic acid
    b) Oxaloacetic acid
    c) 3- phosphoglyceric acid
    d) Phosphoglyceraldehyde

  • 18. Cellular Respiration - Quiz


    1. How many ATP molecules could maximally be generated from one molecule of glucose, if the complete oxidation of one mole of glucose to CO2 and H2O yields 686 kcal and the useful chemical energy available in the high energy phosphate bond of one mole of ATP is 12 kcal?
    a) 30
    b) 57
    c) 1
    d) 2

    2. In Krebs cycle FAD participates as electron acceptor during the conversion of
    a) Succinyl Co-A to succinic acid
    b) a-ketoglutarate to succinyl Co-A
    c) Succinic acid to fumaric acid
    d) Fumaric acid to malic acid

  • 19. Plant Growth, Movement and Plant Hormones - Quiz


    1. The method that renders the seed coat permeable to water so that embryo expansion is not physically retarded, is
    a) Vernalization
    b) Stratification
    c) Denudation
    d) Scarification

    2. Highest auxin concentration occurs
    a) In growing tips
    b) In leaves
    c) At base of plant organs
    d) In xylem and phloem

  • 20. Reproduction in Flowering Plants and Plant Embryology - Quiz


    1. In a flowering plant, archesporium gives rise to
    a) Only tapetum and sporogenous cells
    b) Only the wall of the sporangium
    c) Both wall and the sporogenous cells
    d) Wall and the tapetum

    2. Anemophily type of pollination is found in
    a) Salvia
    b) Bottle brush
    c) Vallisneria
    d) Coconut

  • 21. Animal Tissues - Quiz


    1. ATPase enzyme needed for muscle contraction is located in
    a) Actinin
    b) Troponin
    c) Myosin
    d) Actin

    2. Which cartilage is present at the end of long bones?
    a) Calcified cartilage
    b) Hyaline cartilage
    c) Elastic cartilage
    d) Fibrous cartilage

  • 22. Animal Nutrition and Digestion - Quiz


    1. The richest sources of  vitamin-B12 are 
    a) Goat liver and Spirulina
    b) Chocolate and green gram
    c) Rice and hen egg
    d) Carrot and chicken breast

    2. Whartson duct is associated with
    a) Sub-lingual salivary duct
    b) Parotid salivary gland
    c) Sub-maxillary salivary gland
    d) Brunner's glands

  • 23. Respiratory Gas Exchange - Quiz


    1. The haemoglobin of a human foetus
    a) Has a lower affinity for oxygen than that of the adult
    b) Its affinity for oxygen is the same as that of an adult
    c) Has only 2 protein subunits instead of 4
    d) Has a higher affinity for oxygen than that of an adult

    2. The process of migration of chloride ions from plasma to RBC and of carbonate ions from RBC to plasma is
    a) Chloride shift
    b) Ionic shift
    c) Atomic shift
    d) Na+ pump

  • 24. Circulation of Body Fluids - Quiz


    1. Carbonic anhydrase occurs in
    a) Lymphocytes
    b) Blood plasma
    c) RBC
    d) Leucocytes

    2. Systemic heart refers to
    a) Enteric heart in lower vertebrates
    b) The two ventricles together in humans
    c) The heart that contracts under stimulation from nervous system
    d) Left auricle and left ventricle in higher vertebrates

  • 25. Excretion and Osmoregulation - Quiz


    1. The basic functional unit of human kidney is
    a) Nephron
    b) Pyramid
    c) Nephridia
    d) Henles loop

    2. Which one of the followng pair of items correctly belongs to the category of organs mentioned against it?
    a) Thorn of Bougainvillea and tendrils of Cucurbita - Analogous  organs
    b) Nictitating membrane and blind spot in human eye - Vestigial organs 
    c) Nephridia of earthworm and Malpighian tubules of cockroach - Excretory organs 
    d) Wings of honey bee and wings of crow - Homologous organs

  • 26. Movement and Locomotion - Quiz


    1. Which statement is correct for muscle contraction?
    a) Length of H-zone decrease
    b) Length of A-band remains constant
    c) Length of I-band increases
    d) Length of two Z-line increases

    2. ATPase enzyme needed for muscle contraction is located in
    a) Actinin
    b) Troponin
    c) Myosin
    d) Actin

  • 27. Nervous Coordination and Sense Organs - Quiz


    1. An action potential in the nerve fibre is produced when positive and negative charges on the outside and the inside of the axon membrane are reversed, because
    a) More potassium ions enter the axon as compared to sodium ions leaving it
    b) More sodium ions enter the axon as compared to postassium ions leaving it
    c) All potassium ions leave the axon
    d) All sodium ions enter the axon

    2. What used to be described as Nissls granules in a nerve cell are now identified as
    a) Ribosomes
    b) Mitochondria
    c) Cell metabolites
    d) Fat granules

  • 28. Hormonal Coordination - Quiz


    1. Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?
    a) Luteinizing hormone - Failure of ovulation
    b) Insulin - Diabetes insipidus
    c) Thyroxine - Tetany
    d) Parathyroid hormone - Diabetes mellitus

    2. Withdrawl of which of the following hormones is the immediate cause of menstrucation?
    a) Estrogen
    b) FSH
    c) FSH-RH
    d) Progesterone

  • 29. Reproduction in Animals and Embryonic Development - Quiz


    1. Human eggs are
    a) Alecithal
    b) Microlecithal
    c) Mesolecithal
    d) Macrolecithal

    2. Cells become variable in morphology and function in different regions of the embryo. The process is
    a) Differentiation
    b) Metamorphosis
    c) Organization
    d) Rearrangement

  • 30. Growth, Regeneration and Ageing - Quiz


    1. The semilog of per minute growing bacteria is plotted against time. What will be the shape of graph?
    a) Sigmoid
    b) Hyperbola
    c) Ascending straight line
    d) Descending straight line

    2. Choose the correct sequence of stages of growth curve for bacteria
    a) Lag, log, stationary, decline phase
    b) Lag, log, stationary phase
    c) Stationary, lag, log, decline phase
    d) Decline, lag, log phase

  • 31. Ecology and Environment - Quiz


    1. In a food chain, the largest population is that of
    a) Decomposers
    b) Producers
    c) Primary consumers
    d) Tertiary consumers

    2. Choose the correct match
    Bladderwort, sundew, venus fly trap
    a) Nepenthes, Dionea, Drosera
    b) Nepenthes, Utricularia, Vanda
    c) Utricularia, Drosera, Dionea
    d) Dionea, Trapa, Vanda

  • 32. Wildlife and Conservation of Natural Resources - Quiz


    1. One endangered species of India medicinal plants is that of
    a) Podophyllum
    b) Ocimum
    c) Garlic
    d) Nepenthes

    2. The endangered largest living lemur Idri idri is inhabitant of
    a) Madagascar
    b) Mauritius
    c) Sri Lanka
    d) India

  • 33. Domestication and Improvement of Plants - Quiz


    1. Which one of the following pair is wrongly matched?
    a) Methanogens - Gobar gas
    b) Yeast - Ethanol
    c) Streptomycetes - Antibiotic
    d) Coliforms - Vinegar

    2. Indias wheat yield revolution in the 1960s was possible primarily due to
    a) Hybrid seeds
    b) Increased chlorophyll content
    c) Mutations resulting in plant height reduction
    d) Quantitative trait mutations

  • 34. Domestication and Improvement of Animals - Quiz


    1. The first successfully cloned mammals (animal) the gained worldwide publicity was
    a) Molly (a sheep)
    b) Polly (a sheep)
    c) Chance (a bull)
    d) Dolly (a sheep)

    2. Pasteurization of milk involve heating for
    a) 60 min at about 900C
    b) 30 min at about 500C
    c) 30 min at about 650C
    d) 60 min at 1000C

  • 35. Disease and Disease Control - Quiz


    1. Interferons are synthesized in response to
    a) Mycoplasma
    b) Bacteria
    c) Viruses
    d) Fungi

    2. Maximum application of animal cell culture technology today is in the production of
    a) Vaccines
    b) Edible proteins
    c) Insulin
    d) Interferons

  • 36. Human Population - Quiz


    1. Test-tube baby is one who
    a) Is born out of artificial insemination
    b) Has undergone development in a test tube
    c) Is born out of the technique of fertilization in vitro
    d) Has been developed without fertilization

    2. In a population, unrestricted reproductive capacity is called
    a) Biotic potential
    b) Fertility
    c) Carrying capacity
    d) Birth rate

  • 37. Biofertilizers and Biopesticides - Quiz


    1. Which one of the following statements is correct?
    a) Extensive use of chemical fertilizers may lead to eutrophication of nearby water bodies
    b) Both Azotobacter and Rhizobium fix atmospheric nitrogen in root nodules of plants
    c) Cynobacteria such as Anabaena and Nostoc are important moblizers of phosphates and potassium for plant nutrition in soil
    d) At present it is not possible to grow maize without chemical fertilizers

    2. DDT is
    a) A non-degradable pollutant
    b) An antibiotic
    c) A biodegradable pollutant
    d) Not a pollutant

  • 38. Biology in Human Welfare - Quiz


    1. Human insulin is being commercially produced from a transgenic species of
    a) Escherichia
    b) Mycobacterium
    c) Rhizobium
    d) Saccharomyces

    2. An important step in the manufacture of pulp for paper industry from the woody tissues of plants is the
    a) Preparation of pure cellulose by removing lignin
    b) Removal of oils present in the wood by treatment with suitable chemicals
    c) Removal of water from the wood by prolonged heating at approximately 500 C
    d) Treatment of wood with chemical that breakdown cellulose