Class/Course - Medical Entrance

Subject - Biology

Total Number of Question/s - 4619


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  • 1. The Living World - Quiz

    1. If there was no CO2 in the earth's atmosphere the temperature of earth's would be
    a) higher than the present
    b) less than the present
    c) the same
    d) dependent on the amount of oxygen in the atmosphere

    2. Which one of the following is not a living fossil?
    a) King crab
    b) Sphendon
    c) Archaeopterys
    d) Peripatus

  • 2. Origin and Evolution of Life - Quiz

    1. When two species of different genelogy come to resemble each other as a result of adaptation, the phenomenon is termed
    a) divergent evolution
    b) micro-evolution
    c) co-evolution
    d) convergent evolution

    2. Which one of the following experiments suggests the simplest living organisms could not have originated spontaneously from non-living matter?
    a) Larvae could appear in decaying organic matter
    b) Microbes did not in stored meat
    c) Microbes appeared from unsterilized organic matter
    d) Meat was not spoiled, when heated and kept sealed in a vessel

  • 3. Biomolecules - Quiz

    1. Sequence of which of the following is used to know the phylogeny?
    a) mRNA
    b) rRNA
    c) tRNA
    d) DNA

    2. Lipids are insoluble in water because lipid molecules are
    a) hydrophilic
    b) hydrophobic
    c) neutral
    d) Zwitter ions

  • 4. Enzymes - Quiz

    1. Enzymes are absent in
    a) algae
    b) fungi
    c) cyanobacteria
    d) viruses

    2. Cofactor (coenzymes) is a part of holoenzyme it is
    a) loosely attached inorganic part
    b) acccessory non-protein substance attached firmly
    c) loosely attached organic part
    d) None of the above

  • 5. Cell and Cell Division - Quiz

    1. The desmosomes are concerned with
    a) cytolysis
    b) cell division
    c) cell adherence
    d) cellular excretion

    2. There is no DNA in
    a) an enucleated ovum
    b) mature RBCs
    c) a mature spermatozoan
    d) hair root

  • 6. Genetics - Quiz

    1. Point mutation involves
    a) insertion
    b) change in single base pair
    c) duplication
    d) deletion

    2. In a dihybrid cross AABB × aabb, F2 progeny of AABB, AABb, AaBB and AaBb occurs in the ratio of
    a) 1 : 1 : 1 : 1
    b) 9 : 3 : 3 : 1
    c) 1 : 2 : 2 : 1
    d) 1 : 2 : 2 : 4

  • 7. Systematics - Quiz

    1. A taxon is
    a) a group of related families
    b) a group of related species
    c) a type of living organisms
    d) a taxonomic group of any ranking

    2. Artificial system of classification was first used by
    a) Linnaeus
    b) de Condolle
    c) Pliny
    d) Bentham and Hooker

  • 8. Kingdom Monera and Viruses - Quiz

    1. Influenza virus has
    a) DNA
    b) RNA and histones
    c) Both (a) and (b)
    d) Only proteins and no nucleic acids

    2. For retting of jute the fermenting microbe used is
    a) Methophilic bacteria
    b) Butyric acid bacteria
    c) Helicobacter pylori
    d) Streptococcus lactis

  • 9. Kingdom Protista - Quiz

    1. The chief advantage of encystment to an Amoeba is
    a) The chance to get rid of accumulated waste products
    b) The ability to survive during adverse physical condition
    c) The ability to live for some time without ingesting food
    d) Protection from parasites and predators

    2. Extra-nuclear inheritance occurs in
    a) Killer strain in Paramecium
    b) Colourblindness
    c) Phenylketonuria
    d) Tay Sach disease

  • 10. Kingdom Fungi - Quiz

    1. Most of the lichens consist of
    a) Blue-green algae and Basidomycetes
    b) Blue-green algae and Ascomycetes
    c) Red algae and Ascomycetes
    d) Brown algae and Phycomycetes

    2. Which of the following is a slime mold?
    a) Rhizopus
    b) Physarum
    c) Thiobacillus
    d) Anabaena

  • 11. Plant Kingdom - Quiz

    1. In which one of the following, male and female gametophytes don’t have free living independent existence?
    a) Pteris 
    b) Funaria 
    c) Polytrichum
    d) Cedrus

    2. Protonema occurs in the life cycle of
    a) Riccia
    b) Funaria 
    c) Chlamydomonas
    d) Spirogyra

  • 12. Animal Kingdom - Quiz

    1. During its life cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stages respectively
    a) Metacercaria and cercaria
    b) Miracidium and metacercaria
    c) Redia and miracidium
    d) Cercaria and redia

    2. Which one of the following groups of three animals each is correctly matched with their one characteristic morphologicla feature?
    Animals              Morphological Feature
    a) Animals  -  Liver fluke, sea  anemone, sea cucumber - symmetry
    Morphological Feature  -   Bilateral 
    b) Animals - Centipede, prawn, sea urchin        
    Morphological Feature - Jointed urchin appendages
    c) Animals - Scorpion, spider, cockroach          
    Morphological Feature - Ventral solid central nerous system
    d) Animals - Cockroach, locust, Taenia      
    Morphological Feature - Metameric segmentation

  • 13. Morphology of Flowering Plants - Quiz

    1. Pulses are obtained from
    a) Fabaceae
    b) Asteraceae
    c) Poaceae
    d) Solanaceae

    2. Which plant will lose its economic value if its fruits are produced by induced parthenocarpy?
    a) Grape
    b) Pomegranate
    c) Banana
    d) Orange

  • 14. Anatomy of Plants - Quiz

    1. Organization of stem apex into corpus and tunica is determined mainly by
    a) Planes of cell division
    b) Regions of meristematic activity
    c) Rate of cell growth
    d) Rate of shoot tip growth

    2. Which meristem helps in increasing girth?
    a) Lateral meristem
    b) Intercalary meristem
    c) Primary meristem
    d) Apical meristem

  • 15. Plant-Water Relations - Quiz

    1. Mainly conduction of water in an angiosperm occurs through
    a) Tracheids
    b) Xylem vessels
    c) Sieve tubes
    d) All of these

    2. Main function of lenticel is
    a) Transpiration
    b) Guttation
    c) Gaseous exchange
    d) Bleeding

  • 16. Plant Nutrition - Quiz

    1. The core metal of chlorophyll is
    a) Iron
    b) Magnesium
    c) Nickel
    d) Copper

    2. Which aquatic fern performs nitrogen fixation?
    a) Azolla
    b) Nostoc
    c) Salvia
    d) Salvinia

  • 17. Photosynthesis - Quiz

    1. Photochemical reactions in the chloroplast are directly involved in
    a) Formation of phosphoglyceric acid
    b) Fixation of carbon dioxide
    c) Synthesis of glucose and starch
    d) Photolysis of water and phosphorylation of ADP to ATP

    2. In photosynthesis energy from light reaction to dark reaction is transferred in the form of
    a) ADP
    b) ATP
    c) RuDP
    d) Chlorophyll

  • 18. Cellular Respiration - Quiz

    1. Site of respiration in bacteria is
    a) Episome
    b) Ribosome
    c) Mesosome
    d) Microsome

    2. Oxidative phosphorylation involves simultaneous oxidation and phosphorylation to finally form
    a) Pyruvate
    b) NADPH 
    c) DPN
    d) ATP

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

    1. Cytokinins
    a) Promote abscission
    b) Influence water movement
    c) Help retain chlorophyll
    d) Inhibit protoplasmic straming

    2. Which of the following movement is not related to auxin level?
    a) Bending of shoot towards light
    b) Movement of root towards soil
    c) Nyctinsatic leaf movements
    d) Movement of sunflower head tracking the sun

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

    1. Double fertilization and triple fusion were discovered by
    a) Hofmeister
    b) Nawaschin and Guignard
    c) Leeuwenhoek
    d) Strasburger

    2. Study of formation, growth and development of new individual from an egg is
    a) Apomixis
    b) Embryology
    c) Embryogeny
    d) Cytology

  • 21. Animal Tissues - Quiz

    1. Which cells do not form layer and remain structurally separate?
    a) Epithelial cells
    b) Muscle cells
    c) Nerve cells
    d) Gland cells

    2. Formation of cartilage bones involves
    a) Deposition of bony matter by osteoblasts and resorption by chondroclasts
    b) Deposition of bony matter by osteoclasts and resorption by chondroblasts
    c) Deposition of bony matter by osteoclasts only
    d) Deposition of bony matter by osteoblasts only

  • 22. Animal Nutrition and Digestion - Quiz

    1. What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?
    a) Gastric juice will be deficient in chymosin
    b) Gastric juice will be deficient in pepsinogen
    c) In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin
    d) Enterokinase will not be released from the duodenal mucosa and so trypsinogen is not converted to trypsin

    2. Epithelial cells of the intestine involved in food absorption have on their surface
    a) Pinocytic vesicles
    b) Phagocytic vesicles
    c) Zymogen granules
    d) Microvilli

  • 23. Respiratory Gas Exchange - Quiz

    1. In alveoli of the lungs, the air at the site of gas exchange, is separated from the blood by
    a) Alveolar epithelium only
    b) Alveolar epithelium and capillary endothelium
    c) Alveolar epithelium, capillary endothelium and tunica adventitia
    d) Alveolar epithelium, capillary endothelium, a thin layer of tunica media and tunica adventitia

    2. When CO2 concentration in blood increases, breathing becomes
    a) Shallower and slow
    b) There is no effect on breathing
    c) Slow and sepp
    d) Faster and deeper

  • 24. Circulation of Body Fluids - Quiz

    1. What is true about T-lymphocytes in mammals?
    a) They scavenge damaged cells and cellular debris
    b) These are produced in thyroid
    c) There are of three main types - cytotoxic T-cells, helper T-cells and suppressor T-cells
    d) These originate in lymphoid tissues

    2. Boundle of his is a network of
    a) Nerve fibres distributed in ventricles
    b) Nerve fibres found throughout the heart
    c) Muscle fibres distributed throughut the heart walls
    d) Muscle fibres found only in the ventricle wall

  • 25. Excretion and Osmoregulation - Quiz

    1. Angiotensinogen is a protein produced and secreted by
    a) Macula densa cells
    b) Endothelial cells (cells lining the blood vessels)
    c) Liver cells
    d) Juxtaglomerular (JG) cells

    2. The ability of the vertebrates to produce concentrated (hyperosmotic) urine usually depends upon the
    a) Area of Bowman capsule epithelium
    b) Length of Henle loop
    c) Length of the proximal convoluted tubule 
    d) Cpillary network forming glomerulus

  • 26. Movement and Locomotion - Quiz

    1. Which of the following is the contractile protein of a muscle?
    a) Myosin
    b) Tropomyosin
    c) Actin
    d) Tubulin

    2. The lower jaw in mammals is made up of
    a) Mandible
    b) Dentary
    c) Maxilla
    d) Angulars

  • 27. Nervous Coordination and Sense Organs - Quiz

    1. Light rays entering the eye are controlled by
    a) Pupil
    b) Iris
    c) Cornea
    d) Lens

    2. Cronea transplation is outstandingly successful because
    a) Cornea is easy to preserve
    b) Cornea is not linked up with blood vascular and immune systems
    c) The technique involved is very simple
    d) Cornea is easily available

  • 28. Hormonal Coordination - Quiz

    1. The gonadotropic hormones are produced in
    a) Interstitial cells of testes
    b) Adrenal cortex
    c) Adenohypohysis of pituitary
    d) Posterior part of thyroid

    2. In the human female, menstruation can be deferred by the administration of
    a) LH only
    b) Combination of FSH and LH
    c) Combination of estrogen and progesterone
    d) FSH only

  • 29. Reproduction in Animals and Embryonic Development - Quiz

    1. What is true for cleavage?
    a) Size of embryo increases
    b) Size of cells decreases
    c) Size of cells increases
    d) Size of embryo decreases

    2. The estrus cycle is a characteristic of
    a) Human males only
    b) Human females only
    c) Mammalian males other than primates
    d) Mammalian females other than primates

  • 30. Growth, Regeneration and Ageing - Quiz

    1. During regeneration, modification of an organ to other organ is known as
    a) Morphogenesis
    b) Epimorphosis
    c) Morphallaxis
    d) Acretionary growth

    2. According to the immunity theory of ageing the process starts with the gradual atrophy and disappearance of
    a) Thyroid
    b) Parathyroid
    c) Thymus
    d) Islets of Langerhans

  • 31. Ecology and Environment - Quiz

    1. Praying mentis is a good example of
    a) Mullerian mimicry
    b) Warning colouration
    c) Social insects
    d) Camouflage

    2. Pyramid of number deals with number of
    a) Species in an area
    b) Individuals in a community
    c) Individuals in a trophic level
    d) Sub-species in a community

  • 32. Wildlife and Conservation of Natural Resources - Quiz

    1. Which of the following is considered a hot-spot of biodiversity in India?
    a) Western ghats
    b) Indo-Gangetic plain
    c) Eastern ghats
    d) Aravalli hills

    2. Which one of the following is not included under in situ conservation?
    a) Sanctuary
    b) Botanical Gardens
    c) Biosphere reserve
    d) National Park

  • 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. The alkaloid ajmalicine is obtained from
    a) Atropa
    b) Papaver
    c) Curcuma
    d) Sarpgandha

  • 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. The long-term prospects for a truly human civilization depend in a large measure on
    a) The ability of humanity to moderate its fecundity
    b) Increasing the food production
    c) Colonization of underpopulated areas
    d) Control of human diseases

  • 35. Disease and Disease Control - Quiz

    1. If you suspect major deficiency of antibodies in a perosn, to which of the following would you look for confirmatory evidence?
    a) Serum albumins
    b) Serum globulins
    c) Fibrinogen in the plasma
    d) Haemocytes

    2. Which of the following is not a hereditary disease?
    a) Cretinism
    b) Cystic fibrosis
    c) Thalassaemia
    d) Haemophilia

  • 36. Human Population - Quiz

    1. A country with a high rate of population growth took measures to reduce it. The figure below shows age sex pyramids of populations. A and B twenty years apart. Select the correct interpretation about them

    Interpretations
    a) A is more recent and shows slight reduction in the growth rate
    b) B is earlier pyramid and shows stabilised growth rate
    c) B is more recent showing that population is very young
    d) A is the earlier pyramid and so change has occurred in the growth rate

    2. Human population growth in India
    a) Tends to follow a sigmoid curve as in case of many other animal species
    b) Tends to reach zero population growth as in case of some animal species
    c) Can be reduced by permitting natural calamities and enforcing birth control measures
    d) Can be regulated by following the National programme of family planning

  • 37. Biofertilizers and Biopesticides - Quiz

    1. Which of the following plants are used as green manure in crop fields and in sandy soils?
    a) Saccharum munja and Lantana camara
    b) Dichanthium annulatum and Azolla nilotica
    c) Crotalaria juncea and Alhagi camelorum
    d) Calotropis procera and Phyllanthus niruri

    2. Which bacteria is utilized in gobar gas plant?
    a) Methanogens
    b) Nitrifying bacteria
    c) Ammonifying bacteria
    d) Denitrifying bacteria

  • 38. Biology in Human Welfare - Quiz

    1. What is antisense technology?
    a) A cell displaying a foreign antigen used for synthesis of antigens
    b) Production of somaclonal variants in tissue cultures
    c) When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene
    d) RNA polymerase producing DNA

    2. Polyethylene glycol method is used for
    a) Gene transfer without a vector
    b) Biodiesel production
    c) Seedless fruit production
    d) Energy production from sewage