Class/Course - Class XI

Subject - Biology

Total Number of Question/s - 6057


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  • 1. The Living World - Quiz

    1. Binomial nomenclature is
    a) Two words in name of a species
    b) Two names local and specific
    c) Two names of a species
    d) Two phases, asexual and sexual, in the life cycle of a species

    2. Kaziranga National Park is located in:
    a) Assam
    b) Bengal
    c) Kerela
    d) Himachal Pradesh

  • 2. Biological Classification - Quiz

    1. Plants posses chlorophyll, hence are ________
    a) autotropic
    b) heterotropic
    c) both
    d) none of these

    2. The kingdom of prokaryotes is :
    a) protista
    b) monera
    c) fungi
    d) plantae

  • 3. Plant Kingdom - Quiz

    1. Elaters are present in sporogonium of
    a) Riccia
    b) Marchantia
    c) Selaginella
    d) Sphagnum

    2. In which of the following, pyrenoids are present:
    a) chara,fucus, polysiphonia
    b) volvax, spirogyra, chlamydomonas
    c) porphyra, ectacarpus, ulothrix
    d) sargassum, laminaria, gracillaria

  • 4. Animal Kingdom - Quiz

    1. Number of fertilized eggs in ootheca of Cockroach is
    a) 16 pairs in two rows
    b) 16 in two rows
    c) 10 in one rows
    d) 8 in two rows

    2. Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example:
    a) Enlargement of body size by swallowing air in puffer fish
    b) Melanism in moths
    c) Poison fangs in snakes
    d) Colour change in chameleon

  • 5. Morphology of Flowering Plants - Quiz

    1. Which of the following corrcetly represents the type of fruits given

    a) 1. Berry; 2.Caryopsis; 3.Drupe; 4.Sorosis; 5.Aggregate
    b) 2.Berry; 3.Caryopsis; 4.Drupe; 1.Sorosis; 5.Aggregate
    c) 2.Berry; 3.Caryopsis; 4.Drupe; 5.Legume; 1.Aggregate
    d) 1.Beccate; 3.Caryopsis; 4.Drupe; 1.Sorosis; 5.Composite
    e) 2.Berry; 3.Caryposis; 4.Drupe; 1.Sorosis; 5.Lagume

    2. Two minute scales or lodicules occur in
    a) Citrus medica
    b) Triticum aestivum
    c) Helianthus annus
    d) Gossypium herbaceum

  • 6. Anatomy of Flowering Plants - Quiz

    1. Dicot root having more than six vascular bundles are found in:
    a) pea
    b) sunflower
    c) ficus
    d) ranunculus

    2. In a plant organ which is covered by periderm and in which the stomata are absent, some gaseous exchange still takes place through
    a) Aerenchyma
    b) Trichomes
    c) Pneumatophores
    d) Lenticels

  • 7. Structural Organisation in Animals - Quiz

    1. Connection between axon and dendrite is:
    a) synapsis
    b) synapse
    c) desmosome
    d) tight junction

    2. Which of the following is absent from the coelomic fluid of earthworm?
    a) salts
    b) haemoglobin
    c) corpulses
    d) proteins

  • 8. Cell : The Unit of Life - Quiz

    1. Which of the following is not a true oganelle?
    a) lysosome
    b) chloroplasts
    c) ribosome
    d) mitochondrion

    2. Nucleoside is made up of
    a) Sugar only
    b) Phosphate only
    c) Sugar and phosphate
    d) Sugar and base

  • 9. Biomolecules - Quiz

    1. Oval and ecentric starch grains are found in maize
    a) True
    b) False

    2. Consider the following statements:
    1. cutin is a fatty acid polymer
    2. starch is a fatty acid polymer
    3. Sucrose is a monosaccaride
    4. Maltose is a polymer of glucose
    a) 1,2,3 are correct
    b) 1,2 are correct
    c) 2 and 4 are correct
    d) 1 and 4 are correct

  • 10. Cell Cycle and Cell Division - Quiz

    1. The process of mitosis can be studies in
    a) Onion root tip
    b) Garlic root tip
    c) Tendril tip
    d) All of the above

    2. The drug colchicine has inhibitory effect on cell in which stage?
    a) G1
    b) synapsis
    c) metaphase
    d) G2

  • 11. Transport in Plants - Quiz

    1. A cell is plasmolysed after being kept in a hypertonic solution.what will be present between cell wall and plasmalemma
    a) Isotonic solution
    b) Hypertonic solution
    c) Air
    d) Hypotonic solution

    2. The amount of water held by the soil after drainage is known as
    a) Mineral water
    b) Soil water
    c) Field capacity
    d) Gravitational capacity

  • 12. Mineral Nutrition - Quiz

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

    2. Death of stem and root tips occur due to deficiency of
    a) Phosphorus
    b) Calcium
    c) Nitrogen
    d) Carbon

  • 13. Photosynthesis in Higher Plants - Quiz

    1. The first event in photosythesis is
    a) Synthesis of ATP
    b) Photoexcitation of chlorophyll and ejection of electron
    c) Photolysis of water
    d) Release of oxygen

    2. Consider the following statements
    A. The portion of the spectrum between 500nm and 800nm is also referred to as photosynthetically active radiation (PAR)
    B. Magnesium, calcium and chloride ions play prominent roles in the photolysis of water
    C. In cyclic photphosphorylation, oxygen is not released (as there is no photolysis of water) and NADPH is also not produced
    Of these statements given above
    a) A is true, but B and C are false
    b) A ans B are false, but C is true
    c) B is true, but A and C are false
    d) A and B are true, but C is false
    e) A and C are true, but B is false

  • 14. Respiration in Plants - Quiz

    1. The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of
    a) ATP in small stepwise units
    b) ATP in one large oxidation reaction
    c) Sugars
    d) Nucleic acids

    2. Choose the correct combination of labelling the molecules involved in the pathway of anaerobic respiration in yeast ,

    a) A - Ethanol B- CO2 C- Acetaldehyde
    b) A - CO2 B- Ethanol C- Acetaldehyde
    c) A - CO2 B - Acetaldehyde C - Ethanol
    d) A - Acetaldehyde B - CO2 C - Ethanol
    e) A - Ethanol B - Acetaldehyde C - CO2

  • 15. Plant Growth and Development - Quiz

    1. One of the commonly used plant growth hormone in tea plantations is
    a) Ethylene
    b) Abscisic acid
    c) Zeatin
    d) Indole-3-acetic acid

    2. Given below is a graph drawn on the parameters of growth versus time A, B, C respectively represent

    a) Exponential phase, log phase and steady state phase
    b) Steady state phase, log phase, and lag phase
    c) Slow growing phase, lag phase and steady state phase
    d) Lag phase , steady state phase and logarithmic phase
    e) Lag phase , log phase and steady state phase

  • 16. Digestion and Absorption - Quiz

    1. Which of the following teeth are lophodont
    a) Incisor and canine
    b) Premolar and molar
    c) Canine and premolar
    d) Premolar and incisor

    2. Argentaffin cells are found in
    a) Pancreas
    b) Inetrnal ear
    c) Gastric glands
    d) Liver

  • 17. Breathing and Exchange of Gases - Quiz

    1. Rate of breathing is controlled by
    a) The amount of freely available oxygen
    b) Carbon dioxide
    c) Muscular function of the body
    d) Stress

    2. The breakdown product of haemoglobin is called as
    a) Iron
    b) Bilirubin
    c) Haemocynin
    d) Skatol

  • 18. Body Fluids and Circulation - Quiz

    1. The blood returning to the heart from lungs via pulmonary
    a) RBC per ml of blood
    b) Haemoglobin per ml of blood
    c) Oxygen per ml of blood
    d) Nutrient per ml of blood

    2. Heart beat originates from
    a) Pacemaker
    b) Cardiac muscles
    c) Left atrium
    d) Right ventricle

  • 19. Excretory Products and their Elimination - Quiz

    1. Loop of Henle is found in
    a) Lung
    b) Liver
    c) Neuron
    d) Nephron

    2. Which one of the following pair of waste substances is removed from blood in ornithine cycle
    a) CO2 and urea
    b) Ammonia and urea
    c) CO2 and ammonia
    d) Urea and sodium salt

  • 20. Locomotion and Movement - Quiz

    1. The number of floating ribs in human body is
    a) 6 pairs
    b) 3 pairs
    c) 5 pairs
    d) 2 pairs

    2. Scapula is a large triangular flat bone situated in the dorsal part of the thorax between
    a) The second and fifth ribs
    b) The second and seventh ribs
    c) The third and sixth ribs
    d) The third and eighth ribs

  • 21. Neural Control and Coordination - Quiz

    1. During transmission of nerve impulse the potentials inside membrane has the following type of charge
    a) First positive, then negative and back positive
    b) First negative then positive and back negative
    c) First positive, then negative and remain negative
    d) First negative then positive and remain positive

    2. All spinal nerves are
    a) Motor
    b) Sensory
    c) Mixed
    d) None of the above

  • 22. Chemical Coordination and Integration - Quiz

    1. What is hormone
    a) Glandular secretion
    b) Enzyme
    c) Chemical messenger
    d) Organic complex substance

    2. Which part of the ovary in mammals acts as an endocrine gland after ovulation
    a) Stroma
    b) Germinal epithelium
    c) Graffian follicle
    d) Vitelline membrane

  • 23. Monera (Prokaryotes) - Quiz

    1. Transformation experiments using Pneumococcus bacteria led to the hypothesis that
    a) DNA is the genetic material
    b) Bacteria have sexual reproduction
    c) Chromosomes are made up of DNA
    d) RNA is the transfer link

    2. Membrane-bound organelles are absent in
    a) Plasmodium
    b) Saccharomyces
    c) Streptococcus
    d) Chalmydomonas

  • 24. Protista (Unicellullar Eukaryotes) - Quiz

    1. Infective stage of Trypanosoma gambiense is
    a) Metacyclic
    b) Crithidial
    c) Leptomonas
    d) Leishmania

    2. What is common about Trypanosoma ,Noctiluca, Monocystis and Giardia
    a) They produce spores
    b) These are all parasites
    c) These are all unicellular protists
    d) They have flagella

  • 25. Viruses - Quiz

    1. The causative agent of mad-cow diesase is a
    a) Worm
    b) Virus
    c) Bacterium
    d) Prion

    2. Plant virus was first crystallized by
    a) Pirie
    b) Bawden
    c) Stanley
    d) Beijerinck

  • 26. Animal Tissues - Quiz

    1. Which of the following cytoplasmic granules contain histamine
    a) Basophils
    b) Acidophils
    c) Eosinophils
    d) Neutrophil

    2. In the circuit shown in figure, switch S is shifted to position 2 from position 1 at t = 0, having been in position 1 for a long time. The current in the circuit just after shifting of switch will be (battery and both the inductors are ideal)

    a) $\frac{4}{5}\frac{E}{R}$
    b) $\frac{5}{4}\frac{E}{R}$
    c) $\frac{5}{9}\frac{E}{R}$
    d) $\frac{E}{R}$

  • 27. Morphology in Animals - Quiz

    1. During hibernation, frog respires with
    a) Lung only
    b) Moist skin only
    c) Buccal cavity only
    d) External gills and lungs

    2. Which of these is an ear ossicle in frog
    a) Incus
    b) Auricle
    c) Malleus
    d) Columella auris

  • 28. Fungi (Multicellular Decomposers) - Quiz

    1. Aflatoxins are produced by
    a) Bacteria
    b) Viruses
    c) Fungi
    d) Nematodes

    2. Fungal spores produced asexually at the tips of hyphae are called
    a) Sporangiophores
    b) Anthospores
    c) Conidiophores
    d) Meiospres