Class/Course - Medical Entrance

Subject - Biology

Total Number of Question/s - 4619

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  • 1. The Living World - Quiz

    1. Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms, include
    a) study of carbohydrates/ proteins in fossils
    b) study of the conditions of fossilization
    c) Electron Spin Resonance (ESR) and fossil DNA
    d) study of carbohydrates/proteins in rocks

    2. More than 70% of world's fresh water is contained in 
    a) Antarctica
    b) Greenland
    c) Glaciers and Mountains
    d) Polar ice

  • 2. Origin and Evolution of Life - Quiz

    1. There are two opposing views about origin of modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of variation of DNA however, suggested African origin og modern man. What kind of observation on DNA variation could suggest this?
    a) Greater variation in Asia than in Africa
    b) Greater variation in Africa than in Asia
    c) Similar variation in Africa and Asia
    d) Variation only in Asia and no variation in Africa

    2. What kind of evidence suggested that man is more closely related with chimpanzee than with other hominoid apes?
    a) Evidence from DNA from sex chromosome only
    b) Comparison of chromosomes morphology only
    c) Evidence from fossil remains and the fossil mitochondrial DNA alone
    d) Evidence from DNA extracted from sex chromosomes, autosomes and mitochondria

  • 3. Biomolecules - Quiz

    1. In plants, insulin and pectine are
    a) reserve materials
    b) wastes
    c) excretory material
    d) insect-attrcating material

    2. A polysaccharide, which is synthesized and stored in liver cells, is
    a) lactose
    b) galactose
    c) arabinose
    d) glycogen

  • 4. Enzymes - Quiz

    1. Enzymes enhance the rate of reaction by
    a) forming a reactant-product complex
    b) changing the equilibrium point of the reaction
    c) combining with the product as soon as it is formed
    d) lower the activation energy of the reaction

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

  • 5. Cell and Cell Division - Quiz

    1. DNA is mainly found in
    a) nucleus only
    b) cytoplasm only
    c) Both (a) and (b)
    d) nucleolus

    2. Best stage to observe shape, size and number of chromosomes is
    a) interphase
    b) metaphase
    c) prophase
    d) telophase

  • 6. Genetics - Quiz

    1. Loss of an X-chromosome in a particular cell, during its development, results into
    a) diploid individual
    b) triploid individual
    c) gynandromorphs
    d) both (a) and (b)

    2. Crossing over in diploid organism is responsible for
    a) dominance of genes
    b) linkage between genes
    c) segregation of alleles
    d) recombination of linked alleles

  • 7. Systematics - Quiz

    1. Reason of fast speciation in present day crop plants is
    a) mutation
    b) isolation
    c) polyploidy
    d) sexual reproduction

    2. Plants reproducing by spores such as mosses and ferns are grouped under the general term
    a) thallophytes
    b) cryptogams
    c) bryophytes
    d) sporophytes

  • 8. Kingdom Monera and Viruses - Quiz

    1. The semilog of per minute growing bacteria is plotted against time. What will be the shape of graph?
    a) Signoid
    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) Log, log, stationary phase
    c) Stationary, lag, log, decline phase
    d) Decline, lag, log, phase

  • 9. Kingdom Protista - Quiz

    1. Excretion in Amoeba occurs through
    a) Lobopodia
    b) Uroid portion
    c) Plasma membrane
    d) Contractile vacuole

    2. When a fresh water protozoan possessing a contractile vacuole is placed in a glass containing marine water, the vacuole will
    a) Increase in number
    b) Disappear
    c) Increase in size
    d) Decrease in size.

  • 10. Kingdom Fungi - Quiz

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

    2. Decomposers are organisms that
    a) Illaborate chemical substances, causing death of tissues
    b) Operate in living body and simplifying organic substances of cells step by step
    c) Attack and kill plants as well as animals
    d) Operate in relay terms, simplifying step by step the organic constituents of dead body

  • 11. Plant Kingdom - Quiz

    1. Brown algae is characterized by the presence of
    a) Phycocyanin
    b) Phycoerythrin
    c) Fucoxanthin
    d) Haematochrome

    2. Bryophytes are dependent on water because
    a) Water is essential for fertilization for their homonosporous nature
    b) Wateris essential for their vegetative propagation
    c) The sperms can easily reach upto egg in the archegonium
    d) Archegonium has to remain filled with water for fertilization

  • 12. Animal Kingdom - Quiz

    1. Which one of the following is matching pair of a body feature and the animal possessing it?
    a) Post - anal tail - Octopus
    b) Ventral central - Leech nervous system
    c) Pharyngeal gills slits - Chameleon absent in embryo
    d) Ventral heart - Scorpion

    2. Which one of the following is matching pair of an animal and a certain phenomenon it exhibits?
    a) Chameleon - Mimicry
    b) Taenia - Polymorphism
    c) Pheretima - Sexual dimorphism
    d) Musca - Complete metamorphosis

  • 13. Morphology of Flowering Plants - Quiz

    1. A pernnial plant differs from biennial in
    a) Having underground perennating structure
    b) Having asexual reproductive structures
    c) Being tree species
    d) Not dying after seasonal production of flowers

    2. Buttress roots are found in
    a) Sorghum
    b) Banyan
    c) Terminalia
    d) Pandanus

  • 14. Anatomy of Plants - Quiz

    1. The apical meristem of the root is present
    a) In all the roots
    b) Only in radicals
    c) Only in tap roots
    d) Only in adventitious roots

    2. Sieve tubes are suited for translocation of food because they possess
    a) Borered pits
    b) No ends walls
    c) Broader lumen and perforated cross walls
    d) No protoplasm

  • 15. Plant-Water Relations - Quiz

    1. In guard cells when suagr is converted into starch the stomatal pore
    a) Opens fully
    b) Opens partially
    c) Closes completely
    d) Remains unchanged

    2. The water potential and osmotic potential of pure water are
    a) 100 and zero
    b) Zero and Zero
    c) 100 and 200
    d) Zero and 100

  • 16. Plant Nutrition - Quiz

    1. Which one of the following mineral elements plays an important role in biological nitrogen fixation?
    a) Molybdenum
    b) Copper
    c) Manganese
    d) Zinc

    2. Which of the following is not caused by deficiency of mineral nutrition?
    a) Necrosis
    b) Chlorosis
    c) Etiolation
    d) Shortening of internodes

  • 17. Photosynthesis - Quiz

    1. In the leaves of C4 - plants, malic acid formation during CO2 fixation occurs in the cells of
    a) Mesophyll
    b) Bundle sheath
    c) Phloem
    d) Epidermis

    2. Translocation of carbohydrate nutrients usually occurs in the form of
    a) Glucose
    b) Maltose
    c) Starch
    d) Sucrose

  • 18. Cellular Respiration - Quiz

    1. Apparatus to measure rate of respiration and RQ is
    a) Auxanometer
    b) Potometer
    c) Respirometer
    d) Manometer

    2. Out of 38 ATP molecules produced per glucose, 32 ATP molecules are formed from NADH/FADH2 in
    a) Respiratory chain
    b) Krebs cycle
    c) Oxidative decarboxylation
    d) EMP

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

    1. Which is emplyed for artifical ripening of banana fruits?
    a) Auxin
    b) Cumarin
    c) Ethylene
    d) Cytokinin

    2. Geocarpic fruits are produced by
    a) Onion
    b) Watermelon
    c) Ground nut
    d) Carrot

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

    1. One of the most resistant biological material is
    a) Lignin
    b) Hemicellulose
    c) Lignocellulose
    d) Sporopollenin

    2. The endosperm of gymnosperms is
    a) Triploid
    b) Haploid
    c) Diploid
    d) Polyploid

  • 21. Animal Tissues - Quiz

    1. Stratum germinativum is an example of which kind of epithelium?
    a) Cuboidal
    b) Ciliated
    c) Columner
    d) Squamous

    2. Mineral found in red pigment of vertebrate blood is
    a) Magnesium
    b) Iron
    c) Calcium
    d) Copper

  • 22. Animal Nutrition and Digestion - Quiz

    1. Rennin acts on
    a) Milk changing casein into calcium paracaseinate at 7.2 - 8.2 pH
    b) Protein in stomach
    c) Fat in intestine
    d) Milk changing casein into calcium paracaseinate at 1-3 pH

    2. In vertebrates lacteals are found in
    a) Ileum
    b) Ischium
    c) Oesophagous
    d) Ear

  • 23. Respiratory Gas Exchange - Quiz

    1. 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

    2. People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude of 5400 metre have around 8 million. This is because at high altitude
    a) Atmospheric O2 level is less and hence, more RBCs are needed to absorb the required amount of O2 to survive
    b) There is more UV rediation which enhances RBC production
    c) People eat more nutritive food, therefore, more RBCs are formed
    d) People get pollution-free air to breathe and more oxygen is available

  • 24. Circulation of Body Fluids - Quiz

    1. A vein possesses a large lumen because
    a) Tunica media and tunica externa form a single coat
    b) Tunica interna and tunica media form a single coat
    c) Tunica interna, tunica media and tunica externa are thin
    d) Tunica media is a thin coat

    2. Which of the following is agranulocyte?
    a) Lymphocyte
    b) Eosinophil
    c) Basophil
    d) Neutrophil

  • 25. Excretion and Osmoregulation - Quiz

    1. Uric acid is nitrogenous waste in
    a) Mammals and molluscs
    b) Birds and lizards
    c) Frog and cartilaginous fishes
    d) Insects and bony fishes

    2. A person who is on a long hunger strike and is surviving only on water, will have
    a) More sodium in his urine
    b) Less amino acids in his urine
    c) More glucose in his blood
    d) Less urea in his urine

  • 26. Movement and Locomotion - Quiz

    1. Which one of the following is the correct pairing of a body part and the kind of muscle tissue that moves it?
    a) Heart wall - Involuntary unstriated muscle
    b) Biceps of upper arm - Smooth muscle fibres
    c) Abdominal wall - Smooth muscle
    d) Iris - Involuntary smooth muscle

    2. Number of cervical vertebrae in camel is
    a) More than that of rabbit
    b) Less than that of rabbit
    c) Same as that of whale
    d) More than that of horse

  • 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. Injury to vagus nerve in human is not likely to affect
    a) Tongue movements
    b) Gastrointestinal movements
    c) Pancreatic secretion
    d) Cardiac movements

  • 28. Hormonal Coordination - Quiz

    1. Insulin is
    a) Vitamin
    b) Lipid
    c) Hormone
    d) Enzyme

    2. Chemically hormones are
    a) Biogenic amines only
    b) Proteins, steroids and biogenic amines
    c) Proteins only
    d) Steroids only

  • 29. Reproduction in Animals and Embryonic Development - Quiz

    1. Meroblastic cleavage is division
    a) Horizontal
    b) Partial/parietal
    c) Total
    d) Spiral

    2. Bartholins glands are situated
    a) On either side of vagina in humans
    b) On either side of vas deference in humans
    c) On the sides of the head of some amphibians
    d) At the reduced tail end of birds

  • 30. Growth, Regeneration and Ageing - Quiz

    1. Auxetic growth is
    a) Increase in cell volumn only
    b) Increase in cell number only
    c) Increase in fatty tissue
    d) Increase in intercellular material

    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. What is BOD?
    a) The amount of O2 utilized by organisms in water
    b) The amount of O2 utilized by micro organisms for decomposition
    c) The total amount of O2 present in water
    d) All of the above

    2. Pyramid of number in a pond ecosystem is
    a) Irregular
    b) Inverted
    c) Upright
    d) Spindle-shaped

  • 32. Wildlife and Conservation of Natural Resources - Quiz

    1. In your opinion, which is the most effective way to conserve the plant diversity of an area?
    a) By tisue culture method
    b) By creating biosphere reserve
    c) By creating botanical garden
    d) By developing seed bank

    2. Identify the odd combination of the habitat and the particular animal concerned
    a) Dachigam National Park - Snow leopard
    b) Sunderbans - Bengal tiger
    c) Periyar - Elephant
    d) Rann of Kutch - Wild ass

  • 33. Domestication and Improvement of Plants - Quiz

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

    2. The reason why vegetatively reproducing crop plants are best suited for maintaining hybrid vigour is that
    a) They can be easily propagated
    b) They have a longer life span
    c) They are more resistant to disease
    d) Once a desired hybrid is produced, there are no chances of losing it

  • 34. Domestication and Improvement of Animals - Quiz

    1. The silk worm silk is the product of
    a) Cuticle of the larva
    b) Cuticle of the adult
    c) Salivary gland of the larva
    d) Salivary gland of the adult

    2. Honey is
    a) Acidic
    b) Neutral
    c) Alkaline
    d) Basic after some days

  • 35. Disease and Disease Control - Quiz

    1. Increased asthmatic attacks in certain seasons are related to
    a) Hot and humid environment
    b) Eating fruits preserved in tin containers
    c) Inhalation of seasonal pollen
    d) Low temperature

    2. LSD is
    a) Hallucinogenic
    b) Sedative
    c) Stimulant
    d) Tranquiliser

  • 36. Human Population - Quiz

    1. In a random mating population in equilibrium, which of the following brings about a change in gene frequency in non-directional manner?
    a) Selection
    b) Migration
    c) Mutation
    d) Random drift

    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 pesticides is an acetylcholinesterase inhibitor?
    a) Aldrin
    b) Y-BHC
    c) Endosulfan
    d) Malathion

    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. Which of the micro-organism is used for production of citric acid in industries?
    a) Lactobacillus bulgaris
    b) Penicillium citrinum
    c) Aspergillus niger
    d) Rhizopus nigricans