Class/Course - Class XI

Subject - Biology

Total Number of Question/s - 6057

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  • 1. The Living World - Quiz

    1. Branch of Zoology dealing with the study of fishes is known as
    a) Herpetology
    b) Ichthyology
    c) Mammalogy
    d) Ornithology

    2. The tramsitional zone between two distinct communities is known as:
    a) ecosphere
    b) ecotone
    c) ecoline
    d) rhizosphore

  • 2. Biological Classification - Quiz

    1. Which of the following is an edible` fungi`?
    a) mucor
    b) penicillium
    c) agaricus
    d) rhizophus

    2. The organisms which cannot manufacture their food due to absence of chlorophyll are called ________
    a) heterotrophs
    b) autotrophs
    c) both
    d) none of these

  • 3. Plant Kingdom - Quiz

    1. Sexual reproduction in Spirogyra can be described as
    a) Morphological anisogamy and physiological isogamy
    b) Morpphological as well as physiological isogamy
    c) Morphological as well as physiological anisogamy
    d) Morphological isogamy and physiological anisogamy

    2. Consider the following four statements whether they are correct or wrong?
    (a) the sporophyte in liverwords is more elaborate than that in mosses.
    (b) salvinia is heterosporous
    (c) the life- cycle in all seed bearing plants is diplontic.
    (d) in pinus male and female cones are borne on different trees.
    the two wrong statements together are:
    a) statements (b) and (c)
    b) statements (a) and (b)
    c) statements (a) and (c )
    d) statements (a) and (d)

  • 4. Animal Kingdom - Quiz

    1. In insect, oxygen is carried to different tissues by
    a) Diffusion through surface
    b) Tracheal tubes
    c) Respiratory pigment through blood
    d) Gills

    2. Fishes belong to class Dipnoi are commonly called:
    a) Lung fish
    b) Organ fish
    c) Dog fish
    d) None of these

  • 5. Morphology of Flowering Plants - Quiz

    1. In caryopsistype of fruit
    a) Seed is absent
    b) Three layers of pericarp are distinct
    c) Seed coat and pericarp are fused
    d) Autochory occurs

    2. A characteristic of angiosperms is
    a) Flower
    b) Root
    c) Seed
    d) All of these

  • 6. Anatomy of Flowering Plants - Quiz

    1. Mesophyll in dicot leaf is differenciated into palisade and spongy parenchyma
    a) True
    b) False

    2. Multiple epidermis on dorsal and ventral side of the leaf is found in
    a) Zea mays
    b) Ficus benghalensis
    c) Mangifera indica
    d) Nerium oleander

  • 7. Structural Organisation in Animals - Quiz

    1. Which type of tissue forms glands?
    a) epithelial
    b) connective tissue
    c) nervous
    d) muscular

    2. Invertebral discs are made of:
    a) hyaline cartilage
    b) calcified cartilage
    c) fibro-cartilage
    d) elastic cartilage

  • 8. Cell : The Unit of Life - Quiz

    1. Acid hydrolase is found in:
    a) golgi body
    b) ER
    c) lysosome
    d) vacuole

    2. Which of the following cell organelles stores hydrolytic enzymes?
    a) centrioles
    b) lysosomes
    c) chromoplasts
    d) chloroplasts

  • 9. Biomolecules - Quiz

    1. Select the wrong statement
    a) The building blocks of lipids are amino acids
    b) Majority of enzymes contain a non-protein part called the prothetic group
    c) Crossing over occurs at pachytene stage of meiosis I
    d) Steroids are complex compounds commonly found in cell membranes and animal hormones

    2. The carbohydrate molecule cellulose is a _______
    a) disaccharide
    b) polysaccharide
    c) monosaccharide
    d) homosaccharide

  • 10. Cell Cycle and Cell Division - Quiz

    1. Crossing over may result in:
    a) interphase
    b) prophase
    c) metaphse
    d) telophase

    2. Find the correctly matched paris and choose the correct option
    A.Leptotene - The chromosomes become invisible
    B.Zygotene - Pairing of homologous chromosomes
    C. Pachytene - Dissolution of the synaptonemal complex takes place
    D.Diplotene - Bivalent chromosomes appear as tetrads
    E.Diakinesis - Terminalization of chiasmata takes place
    a) A and B are correct
    b) B and D are correct
    c) B and E are correct
    d) B and C are correct
    e) C and D are correct

  • 11. Transport in Plants - Quiz

    1. In which type of plants, the stomata remain closed during day time and open during night
    a) Photophilous
    b) Succulents
    c) Sciphilous
    d) Halophytes

    2. The movement of water from one cell of the cortex to the adjacent one in roots is due to
    a) Accumulation of inorhanic salts in the cells
    b) Accumulation of organic compounds in the cells
    c) Chemical potential gradient
    d) Water potential gradient

  • 12. Mineral Nutrition - Quiz

    1. The major role of phosphorus in plant metabolism is
    a) To generate metabolic energy
    b) To evolve oxygen during photosynthesis
    c) To evolve carbon dioxide during respiration
    d) To create anaerobic conditions

    2. Which one of the folllowing is an amide involved in nitrogen assimilation by plants
    a) Glutamate
    b) Alanine
    c) Asparagine
    d) Serine
    e) Glycine

  • 13. Photosynthesis in Higher Plants - Quiz

    1. Read the following four statements. A, B, C and D and select the right option having both correct statements
    (A) Z scheme of light reaction takes place in presence of PS I
    (B) Only PS I is functional in cyclic photophosporyation
    (C) Cyclic photophosphorylation results into synthesis of ATP and NADPH2
    (D) Stroma lamellae lack PS II as well as NADP
    a) (B) and (D)
    b) (A) and (B)
    c) (B) and (C)
    d) (C) and (D)

    2. The most vital process for the existence of life earth is
    a) Communication in animals
    b) Photosynthesis by plants
    c) Reproduction in plants and animals
    d) Respiration in animals

  • 14. Respiration in Plants - Quiz

    1. In glycolysis, the end product is
    a) protein is converted to glucose
    b) Glucose is converted into fructose
    c) Starch is converted into glucose
    d) Glucose is converted into pyruvic acid

    2. Different steps in respiration are controlled by
    a) Auxin
    b) Sugar
    c) Enzyme
    d) Kinetin

  • 15. Plant Growth and Development - Quiz

    1. Parthenocarpy is induced by
    a) ABA
    b) Auxins
    c) Zeatin
    d) Cytokinin

    2. Auxins are abundantly produced in
    a) Root
    b) Meristematic region of the root
    c) Shoot
    d) Meristematic region of shoot

  • 16. Digestion and Absorption - Quiz

    1. Which word best describes the action of bile on fats
    a) Netralises
    b) digests
    c) Emulsifies
    d) Absorbs
    e) Dissolves

    2. Which of the following statements is correct
    a) Though secretin is an enzyme, it is not involved in digestion
    b) Secretin is an anzyme and so it helps digestion
    c) Secretin is a hormone but it plays a role in digestion
    d) Secretin is a hormone and hence it does not play any role in digestion

  • 17. Breathing and Exchange of Gases - Quiz

    1. There is a membrane covering the lungs, called
    a) Peritonium
    b) Pleura
    c) Pericardium
    d) Duramater

    2. Which is a common passage in swallowing food and breathing
    a) Larynx
    b) Gullet
    c) Glottis
    d) Pharynx

  • 18. Body Fluids and Circulation - Quiz

    1. Which one is the correct route through which pulse making impulse travels in the heart
    a) SA node → Purkinje fibres → Bundle of His → AV node → Heart muscles
    b) AV node → SA node → Purkinje fibres → Bundle of His → Heart muscles
    c) AV node → Bundle of His → SA node → Purkinje fibres → Heart muscles
    d) SA node → AV node → Bundle of His → Purkinje fibres → Heart muscles

    2. Antigens are present
    a) Inside nucleus
    b) On cell surface
    c) Inside cytoplasm
    d) On nuclear membrane

  • 19. Excretory Products and their Elimination - Quiz

    1. Which of the following cycles in liver is mainly responsible for the synthesis of urea
    a) Citruline cycle
    b) Kreb's cycle
    c) Nitrogen cycle
    d) Ornithine cycle

    2. Substance which is finally excreted in the urine
    a) Amino acid
    b) Urea
    c) Glucose and Glycogen
    d) Uric acid

  • 20. Locomotion and Movement - Quiz

    1. Major protein in the thick filament of skeletal muscle fibre is
    a) Tropomyosin
    b) Myosin
    c) Actin
    d) Troponin

    2. Number of bones in human body is
    a) 260
    b) 206
    c) 306
    d) 203

  • 21. Neural Control and Coordination - Quiz

    1. Which of the following cranial nerve of man is both sensory and motor
    a) Olfactory lobe
    b) Trigeminal
    c) Optic
    d) Auditory

    2. The following cranial nerves plays an important role in regulating heart beat
    a) IX
    b) VII
    c) X
    d) VIII

  • 22. Chemical Coordination and Integration - Quiz

    1. Which one of the following pairs of organs includes only the endocrine glands
    a) Thymus and Testes
    b) Adrenal and Ovary
    c) Parathyroid and Adrenal
    d) Pancreas and parathyroid

    2. Parathormone is secreted during
    a) Increased blood calcium level
    b) Decreased blood calcium level
    c) Increased blood sugar level
    d) Decreased blood sugar level

  • 23. Monera (Prokaryotes) - Quiz

    1. The correct sequence of stages of growth curve for bacteria is
    a) Decline, lag, log phase
    b) Lag, log, stationary phase
    c) Stationary, lal, log, decline phase
    d) Lag, log, stationary, decline phase

    2. Prokaryota includes
    a) Mycoplasma
    b) Ulothrix
    c) Fungi
    d) Mycoplasma and blue-green algae

  • 24. Protista (Unicellullar Eukaryotes) - Quiz

    1. In Amoeba,contractile vacuole is present
    a) Near trailing end
    b) Near advancing end
    c) At the middle of body
    d) Any where inside body

    2. The part of life cycle of malaria parasite Plasmodium vivax , that is passed in female Anpoheles is
    a) Sexual cycle
    b) Pre-erythrocytic schizogony
    c) Exoerythrocytic schizogony
    d) Post-erythrocytic schizogony

  • 25. Viruses - Quiz

    1. Potato tuber spindle disease is caused by
    a) Virus
    b) Viroid
    c) Plasmid
    d) None of these

    2. Viral genome incoporated host DNA is called
    a) Prophase
    b) Prophage
    c) Bacteriophage
    d) None of these

  • 26. Animal Tissues - Quiz

    1. Haversian system is a diagnostic feature of
    a) Avian bones
    b) All animals
    c) Mammalian bones only
    d) Reptilian bones

    2. The connective tissue of the vertebrate body is built up from fibres of the protein collagen, embedded in a polysaccharide matrix to form
    a) Cartilage
    b) Blood vessel
    c) Heart
    d) Lung

  • 27. Morphology in Animals - Quiz

    1. In which of these animals,skin serves as an accessory organ of respiration
    a) Bird
    b) Frog
    c) Lizard
    d) Rabbit

    2. Frogs differ from humans in possessing
    a) Nucleated red blood cells
    b) Thyroid as well as parathyriod
    c) Paired cerebral hemispheres
    d) Hepatic portal system

  • 28. Fungi (Multicellular Decomposers) - Quiz

    1. Which of the following statement is true about fungi imperfecti
    a) They do not have sexual phase
    b) They include species that prey only on nematodes
    c) They include toadstools, puffballs and stink horns
    d) They include Aspergillus, the fungus used to make soya sauce

    2. Which one of the following is true for fungi
    a) They lack a rigid cell wall
    b) They are heterotrophs
    c) They lack nuclear membrane
    d) They are phagotrophs