aipmt–Past papers<br />BIOLOGY - UNSOLVED PAPER - 2008<br />
SECTION – I (Total Marks :100)<br />Single Correct Answer Type<br />There are five parts in this question. Four choices ar...
01<br />Problem<br />A  competitive  inhibitor  of  succinicdehydrogenase  is<br />-Ketoglutarate<br />Malate<br />Malona...
Problem<br />02<br />Senescence  as  an  active   developmental  cellular  process  in  the  growth  and  functioning  of ...
Problem<br />03<br />Which  one  of  the  following  statements  is  incorrect  about  menstruation?<br />At  menopause  i...
Problem<br />04<br />Which  one  of  the  following  conditions  in  humans  is  correctly  matched  with  its  chromosoma...
Problem<br />05<br />In  leaves  of  C4  plants  malic  acid  synthesis  during  CO2   fixation  occurs  in<br />Bundle  s...
Problem<br />06<br />What  is  true  about  the  isolated  small  tribal populations?<br />Wrestlers  who  develop  strong...
Problem<br />07<br />Replum  is  present  in  the  ovary  of  flower  of<br />Sun  flower<br />Pea<br />Lemon<br />Mustard...
Problem<br />08<br />Unisexuality  of  flowers  prevents<br />Geitonogamy,  but  not  xenogamy<br />Autogamy  and  geitono...
Problem<br />09<br />The  length  of  different  internodes  in   a  culm  of  sugarcane  is  variable  because  of<br />S...
Problem<br />10<br />Which  one  of  the  following  is  not  observed  in  biodiversity  hotspots?<br />Lesser  inter-spe...
Problem<br />11<br />Which  one  of  the  following  is  the  correct  percentage  of  the  two  (out  of  the  total  of ...
Problem<br />12<br />The  two  sub-units  of  ribosome  remain  united  at  a  critical  ion  level  of<br />Magnesium<br ...
Problem<br />13<br />Given  below  are  four  methods  (A-D)  and  their  modes  of  action  (a-d)  in  achieving  contrac...
Problem<br />14<br />The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphat...
Problem<br />15<br />The linking of antibiotic resistance gene with the plasmid vector became possible with<br />DNA polym...
Problem<br />16<br />The rupture and fractionation do not usually occur in the water column in vessel or tracheids during ...
Problem<br />17<br />Thorn of Bougainvillea and tendril of Cucubita are examples of<br />Vestigial organs<br />Retrogressi...
Problem<br />18<br />Consider the following four measures (1-4) that could be taken to successfully grow chickpea in an ar...
Problem<br />19<br />World Summit on Sustainable Development (2002) was held in<br />Argentina<br />South Africa<br />Braz...
Problem<br />20<br />Darwin’s Finches are an excellent examples of<br />Brood parasitism<br />Connecting links<br />Adapti...
Problem<br />21<br />Polysome is formed by<br />A ribosome with several subunits<br />Ribosomes attached to each other in ...
Problem<br />22<br />Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the c...
Problem<br />23<br />The fruit is chambered, developed from inferior ovary and has seeds with succulent testa in<br />Guav...
Problem<br />24<br />Endosperm is consumed by developing embryo in the seed of<br />Pea<br />Maize<br />Coconut<br />Casto...
Problem<br />25<br />In the DNA molecule<br />The proportion of adenine in relation to thymine varies with the organism<br...
Problem<br />26<br />Which type of white blood cells are concerned with release of histamine <br />& the natural anticoagu...
Problem<br />27<br />Thermococcus, methanococcus & methanobacterium exemplify<br />Bacteria whose DNA is relaxed or positi...
Problem<br />28<br />Which one of the following is being tried in India as a biofuel for fossil fuels?<br />Musa<br />Aegi...
Problem<br />29<br />Dry indehiscent single-seeded fruit formed from bicarpellarysyncacarpous inferior ovary is <br />Berr...
Problem<br />30<br />Which one of the following pairs of codons is correctly matched with their function or the signal for...
Problem<br />31<br />Select one of the following pairs of important features distinguish gnetum from cycas & pinus & showi...
Problem<br />32<br />Earthworms have no skeleton but during burrowing, the anterior end becomes turgid & acts as a hydraul...
Problem<br />33<br />Which one of the following is the true description about an animal concerned?<br />Rat-left kidney is...
Problem<br />34<br />Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus?<br />Yo...
Problem<br />35<br />About 70% of total global carbon is found in<br />Oceans<br />Forests<br />Grasslands<br />Agroecosys...
Problem<br />36<br />Human insulin is being commercially produced from a transgenic species of<br />Rhizobium<br />Sacchar...
Problem<br />37<br />Vacuole in a plant cell<br />Lacks membrane and contains air<br />Lacks membrane and contains water a...
Problem<br />38<br />Quercus species are the dominant component in<br />Scrub forests<br />Tropical rain forests<br />Temp...
Problem<br />39<br />Vascular tissues in flowering plants develop from<br />Periblem<br />Dermatogen<br />Phellogen<br />P...
Problem<br />40<br />Gel electrophoresis is used for<br />Construction of recombinant DNA by joining with cloning vectors<...
Problem<br />41<br />Which one of the following pair of organs includes only the endocrine glands?<br />Thymus and testes<...
Problem<br />42<br />Haploids are more suitable for mutation studies than the diploids. This is because<br />Haploids are ...
Problem<br />43<br />Consider the following four statements (1-4) about certain desert animals such as kangaroo rat<br />T...
Problem<br />44<br />Which one of the following is not a characteristic of phylum annelida?<br />Pseudocolelom<br />Ventra...
Problem<br />45<br />In human adult females oxytocin<br />Stimulates pituitary to secret vasopressin<br />Causes strong ut...
Problem<br />46<br />The most active phagocytic white blood cells are<br />Eosinophils & lymphocytes<br />Neutrophils & mo...
Problem<br />47<br />In which of the following male& female game-tophytes do not have free living independent existence?<b...
Problem<br />48<br />What is vital capacity of our lungs?<br />Inspiratory reserve volume plus expiratory reserve volume<b...
Problem<br />49<br />Which of the following is heterosporous?<br />Adiantum<br />Equisetum<br />Dryopteris<br />Salvinia<b...
Problem<br />50<br />The blood calcium level is lowered by the deficiency of<br />Both calcitonin & parathormone<br />Calc...
Problem<br />51<br />The C4 plants are photo synthetically more efficient than C3 plants because<br />The CO2 efflux is no...
Problem<br />52<br />Which one of the following phyla is correctly matched with its general characteristics?<br />Echinode...
Problem<br />53<br />In germinating seeds fatty acids are degraded exclusively in the<br />Peroxisomes<br />Mitochondria<b...
Problem<br />54<br />Which one of the following is the correct difference between rod cells & cone cells of our retina?<br...
Problem<br />55<br />In light of recent classification of living organisms into three domains of life (bacteria, archaea &...
Problem<br />56<br />Which one of the following proved effective for biological control of nematodal disease in plants?<br...
Problem<br />57<br />A lake near a village suffered heavymortality of fishes within a few days.consider the following reas...
Problem<br />58<br />The table below gives the population (in thousands) of ten species ( A- J) in four area (p-s) consist...
Problem<br /> <br />Which area  out of p-s shows maximum species diversity?<br />s <br />p<br />q<br />r<br />
Problem<br />59<br />During the propagation of a nerve impulse, the action potentials results from the movement of<br />K+...
Problem<br />60<br />Consider the following statements concerning food chains<br />Removal of 80% tigers from an area resu...
Problem<br />61<br />Modern detergents contain enzymes preparations of<br />Thermoacidophiles<br />Thermophiles<br />Acido...
Problem<br />62<br />What is antisense technology?<br />When a piece of RNA that is complementary in sequence is used to s...
Problem<br />63<br />Cornes transplant in humans is almost never rejected. This is because<br />It is composed of enucleat...
Problem<br />64<br /> Which one of the following is incorrect about the characteristics of probionts as envisaged in the a...
Problem<br />65<br /> In humans, blood passes from the post caval to the diastolic right atrium of heart due to<br />Stimu...
Problem<br />66<br />Which one of the following is resistant to enzymes action<br />Pollen exine<br />Leaf cuticle<br />Co...
Problem<br />67<br />According to central pollution board (CPCB) which particulate size in diameter of the air pollutants ...
Problem<br />68<br />Cellulose is the major component of  cell walls of<br />Pseudomonas<br />Saccharomyces<br />Pythium<b...
Problem<br />69<br />What does the filiform apparatus do at the enterence into ovule ?<br />It bring about opening of the ...
Problem<br />70<br />Match the disease in the column (i) with the appropriate items (pathogen/prevention / treatment) in c...
Problem<br />71<br />Carbohydrates are commonly found as starch in plants storage organs. Which of the following five prop...
Problem<br />72<br />The slow rate of decomposition of fallen logs in nature is due to their<br />Anaerobic environment ar...
Problem<br />73<br />Cry I endotoxinsuptained from bacillus thuringiensis are effective against<br />Nematodes<br />Boll w...
Problem<br />74<br />Consider the statements given below regarding contraception and answer as directed thereafter   Medic...
Problem<br />75<br />Bacterial leaf blight of rice is caused by a species<br />Alternaria<br />Erwinia<br />Xanthomonas<br...
Problem<br />76<br />Trichodermaharzianum has proved a useful microorganism for<br />Gene transfer in higher plants<br />B...
Problem<br />77<br />Which one of the following pairs of items correctly belongs to the category of organs mentioned again...
Problem<br />78<br />To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the ey...
Problem<br />79<br />Which one of the following groups of three animals each is correctly matched with their one character...
Problem<br />80<br />Which one of the following is the correct matching of the site of action on the given substrate, the ...
Problem<br />81<br />What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?<b...
Problem<br />82<br />Nitrogen fixation in root nodules of alnus is brought about by<br />Frankia<br />Azorhizobium<br />Br...
Problem<br />83<br />Which one of the following is the correct statement regarding the particular psychotropic drug specif...
Problem<br />84<br />The energy releasing process in which the substrate is oxidized without an external electron acceptor...
Problem<br />85<br />The haemoglobin of a human foetus<br />Has only two protein subunits instead of four<br />Has a highe...
Problem<br />86<br />Which one of the following pairs of plant structures has haploid number of chromosomes?<br />Nucellus...
Problem<br />87<br />Which one of the following items gives its correct total number?<br />Types of diabetes-3<br />Cervic...
Problem<br />88<br />Keeping in view the ‘fluid mosaic model’ for the structure of cell membrane, Which one of the followi...
Problem<br />89<br />Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide ?<br...
Problem<br />90<br />Main objective of production /use of herbicide resistant GM crops is to<br />Encourage eco-friendly h...
Problem<br />91<br />Which one of the following, in birds, indicates their reptilian ancestry?<br />Two special chambers c...
Problem<br />92<br />Consider the following statements about bio-medical technologies<br />During open heart surgery blood...
Problem<br />93<br />Ascaris is characterized by<br />Presence of true coelom but absence of metamerism<br />Presence of t...
Problem<br />94<br />In humans, at the end of the first meiotic division, the male germ cells differentiate into the <br /...
Problem<br />95<br />Electrons from excited chlorophyll molecule of photosystem II are accepted first by <br />Quinine<br ...
Problem<br />96<br />Importance of day length in flowering of plants was first shown in<br />Cotton<br />Petunia<br />Lemn...
Problem<br />97<br />The fleshy receptacle of syconus of fig encloses a number of<br />Berries <br />Mericarps<br />Achene...
Problem<br />98<br />Which one of the following scientst’s name is correctly matched with the theory putforth by him?<br /...
Problem<br />99<br />Given below is a diagrammatic crossection of a single loop of human cochlea<br />Which one of the fol...
Problem<br />100<br />Which one of the following options correctly represents the names of three different parts?<br />D :...
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AIPMT Biology 2008

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AIPMT Biology 2008

  1. 1. aipmt–Past papers<br />BIOLOGY - UNSOLVED PAPER - 2008<br />
  2. 2. SECTION – I (Total Marks :100)<br />Single Correct Answer Type<br />There are five parts in this question. Four choices are given for each part and one of them is correct. Indicate you choice of the correct answer for each part in your answer-book by writing the letter (a), (b), (c) or (d) whichever is appropriate<br />
  3. 3. 01<br />Problem<br />A competitive inhibitor of succinicdehydrogenase is<br />-Ketoglutarate<br />Malate<br />Malonate<br />Oxaloacetate.<br />
  4. 4. Problem<br />02<br />Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in<br />Annual plants<br />Floral parts<br />Vessels and tracheid differentiation<br />Leaf abscission<br />
  5. 5. Problem<br />03<br />Which one of the following statements is incorrect about menstruation?<br />At menopause in the female, there is especially abrupt increase in gonadotropic hormones<br />The beginning of the cycle of menstruation is called menarche<br />During normal menstruation about 40 ml blood is lost<br />The menstrual fluid can easily clot.<br />
  6. 6. Problem<br />04<br />Which one of the following conditions in humans is correctly matched with its chromosomal abnormality/ linkage?<br />Erythroblastosisfoetalis- X- linked<br />Down’s syndrome - 44 autosomes + XO<br />Klinefelter’s syndrome - 44 autosomes +XXY<br />Colour blindness – Y –linked.<br />
  7. 7. Problem<br />05<br />In leaves of C4 plants malic acid synthesis during CO2 fixation occurs in<br />Bundle sheath<br />Guard cells<br />Epidermal cells<br />Mesophyll cells.<br />
  8. 8. Problem<br />06<br />What is true about the isolated small tribal populations?<br />Wrestlers who develop strong body muscles in their life pass this character on to their progeny<br />There is no change in population size as they have a large gene pool<br />There is a decline in population as boys marry girls only from their own tribe<br />Hereditary diseases like colour blindness do not spread in the isolated population.<br />
  9. 9. Problem<br />07<br />Replum is present in the ovary of flower of<br />Sun flower<br />Pea<br />Lemon<br />Mustard.<br />
  10. 10. Problem<br />08<br />Unisexuality of flowers prevents<br />Geitonogamy, but not xenogamy<br />Autogamy and geitonogamy<br />Autogamy, but not geitonogamy<br />Both geitonogamy and xenogamy<br />
  11. 11. Problem<br />09<br />The length of different internodes in a culm of sugarcane is variable because of<br />Size of leaf lamina at the node below each internode<br />Intercalary meristem<br />Shoot apical meristem<br />Position of axillary buds<br />
  12. 12. Problem<br />10<br />Which one of the following is not observed in biodiversity hotspots?<br />Lesser inter-specific competition<br />Species richness<br />Endemism<br />Accelerated species loss<br />
  13. 13. Problem<br />11<br />Which one of the following is the correct percentage of the two (out of the total of 4) green house gases that contribute to the total global warming?<br />N2O 6%, CO2 86%<br />METHANE 20%, N2O 18%<br />CFCS 14%, METHANE 20%<br />CO2 40%, CFCS 30%.<br />
  14. 14. Problem<br />12<br />The two sub-units of ribosome remain united at a critical ion level of<br />Magnesium<br />Calcium<br />Copper<br />Manganese<br />
  15. 15. Problem<br />13<br />Given below are four methods (A-D) and their modes of action (a-d) in achieving contraception. Select their correct matching from the four options that follow<br /> Method Mode of Action<br />The pill (i)Prevents sperms reaching cervix<br /> Condom (ii)Prevents implantation<br />Vasectomy (iii)Prevents ovulation<br />Copper T (iv)Semen contains no sperms<br /> <br />A-(iii), B(iv), C(i), D (ii)<br />A-(ii), B(iii), C(i), D (iv)<br />A-(iii), B(i), C(iv), D (ii)<br />A-(iv), B(i), C(ii), D (iii)<br />
  16. 16. Problem<br />14<br />The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because<br />A proton gradient forms across the inner membrane<br />There is a change in the permeability of the inner mitochondrial membrane toward adenosine diphosphate (ADP) <br />High energy bonds are formed in mitochondrial proteins<br />ADP is pumped out of the matrix into the intermembrane space<br />
  17. 17. Problem<br />15<br />The linking of antibiotic resistance gene with the plasmid vector became possible with<br />DNA polymerase<br />Exonucleases<br />DNA ligase<br />Endonucleases<br />
  18. 18. Problem<br />16<br />The rupture and fractionation do not usually occur in the water column in vessel or tracheids during the ascent of sap because of<br />Weak gravitational pull<br />Transpiration pull<br />Lignified thick walls<br />Cohesion and adhesion<br />
  19. 19. Problem<br />17<br />Thorn of Bougainvillea and tendril of Cucubita are examples of<br />Vestigial organs<br />Retrogressive evolution<br />Analogous organs<br />Homologous organs<br />
  20. 20. Problem<br />18<br />Consider the following four measures (1-4) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common Spray with Bordeaux mixture<br />Control of the insect vector of the disease pathogen <br />Use of only disease-free seeds<br />Use of varieties resistant to the disease<br />Which two of the above measures can control the disease?<br />3 and 4<br />1 and 4<br />2 and 3<br />1 and 2<br />
  21. 21. Problem<br />19<br />World Summit on Sustainable Development (2002) was held in<br />Argentina<br />South Africa<br />Brazil<br />Sweden<br />
  22. 22. Problem<br />20<br />Darwin’s Finches are an excellent examples of<br />Brood parasitism<br />Connecting links<br />Adaptive radiation<br />Seasonal migration<br />
  23. 23. Problem<br />21<br />Polysome is formed by<br />A ribosome with several subunits<br />Ribosomes attached to each other in a linear arrangement<br />Several ribosomes attached to a signal m RNA<br />Many ribosomes attached to a strand of endoplasmic reticulum<br />
  24. 24. Problem<br />22<br />Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?<br />Guanine, adenine – purines<br />Adenine, thymine- purines<br />Thymine, uracil- pyrimdines<br />Uracil, cytosine- pyrimidines<br />
  25. 25. Problem<br />23<br />The fruit is chambered, developed from inferior ovary and has seeds with succulent testa in<br />Guava<br />Cucumber<br />Pomegranate<br />Orange<br />
  26. 26. Problem<br />24<br />Endosperm is consumed by developing embryo in the seed of<br />Pea<br />Maize<br />Coconut<br />Castor<br />
  27. 27. Problem<br />25<br />In the DNA molecule<br />The proportion of adenine in relation to thymine varies with the organism<br />There are two strands which run antiparallel-one in 5' -> 3' direction and other in 3' -> 5'<br />The total amount of purine nucleotides and pyrimidine nucleotides is not always equal<br />There are two strands which run parallel in the 5' -> 3' direction<br />
  28. 28. Problem<br />26<br />Which type of white blood cells are concerned with release of histamine <br />& the natural anticoagulant heparin?<br />Eosinophils<br />Monocytes<br />Neutrophils<br />Basophils<br />
  29. 29. Problem<br />27<br />Thermococcus, methanococcus & methanobacterium exemplify<br />Bacteria whose DNA is relaxed or positively supercoiled but which have a cytoskeleton as well as mitochondria<br />Bacteria that contain a cytoskeleton & ribosomes<br />Archaebacteria that contain protein homologous to eukaryotic core histones<br />Archaebacteria that lack any histones resembling those found in eukaryotes but whose DNA is negatively supercoiled<br />
  30. 30. Problem<br />28<br />Which one of the following is being tried in India as a biofuel for fossil fuels?<br />Musa<br />Aegilops<br />Jatropha<br />Azadirachta<br />
  31. 31. Problem<br />29<br />Dry indehiscent single-seeded fruit formed from bicarpellarysyncacarpous inferior ovary is <br />Berry <br />Cremocarp<br />Caryopsis<br />Cypsela<br />
  32. 32. Problem<br />30<br />Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?<br />AUG, ACG-start/methionine<br />UUA, UCA-leucine<br />GUU, GCU-alanine<br />UAG, UGA-stop<br />
  33. 33. Problem<br />31<br />Select one of the following pairs of important features distinguish gnetum from cycas & pinus & showing affinities with angiosperms<br />Perianth & two integuments<br />Embryo development development & apical meristem<br />Absence of resin duct & leaf venation<br />Presence of vessel elements & absence of archegonia<br />
  34. 34. Problem<br />32<br />Earthworms have no skeleton but during burrowing, the anterior end becomes turgid & acts as a hydraulic skeleton.it is due to<br />Gut peristalsis<br />Setae<br />Coelomic fluid<br />Blood<br />
  35. 35. Problem<br />33<br />Which one of the following is the true description about an animal concerned?<br />Rat-left kidney is slightly higher in position than the right one<br />Cockroach-10 pairs of spiracles (2 pairs on thorax & 8 pairs on abdomen)<br />Earthworm-the alimentary canal consists of a sequence of pharynx, oesophagus, stomach, gizzard,& intestine<br />Frog-body divisible into three regions-head, neck & trunk<br />
  36. 36. Problem<br />34<br />Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus?<br />Yolk sac<br />Amnion<br />Chorion<br />Allantosis<br />
  37. 37. Problem<br />35<br />About 70% of total global carbon is found in<br />Oceans<br />Forests<br />Grasslands<br />Agroecosystems<br />
  38. 38. Problem<br />36<br />Human insulin is being commercially produced from a transgenic species of<br />Rhizobium<br />Saccharomyces<br />Escherichia<br />Mycobacterium<br />
  39. 39. Problem<br />37<br />Vacuole in a plant cell<br />Lacks membrane and contains air<br />Lacks membrane and contains water and excretory substances<br />Is membrane-bound and contains storage proteins and lipids<br />Is membrane-bound and contains water and excretory substances<br />
  40. 40. Problem<br />38<br />Quercus species are the dominant component in<br />Scrub forests<br />Tropical rain forests<br />Temperate deciduous forests<br />Alpine forests<br />
  41. 41. Problem<br />39<br />Vascular tissues in flowering plants develop from<br />Periblem<br />Dermatogen<br />Phellogen<br />Plerome<br />
  42. 42. Problem<br />40<br />Gel electrophoresis is used for<br />Construction of recombinant DNA by joining with cloning vectors<br />Isolation of DNA molecules<br />Cutting of DNA into fragments<br />Separation of DNA fragments according to their size<br />
  43. 43. Problem<br />41<br />Which one of the following pair of organs includes only the endocrine glands?<br />Thymus and testes<br />Adrenal and ovary<br />Parathyroid and adrenal<br />Pancreas and parathyroid<br />
  44. 44. Problem<br />42<br />Haploids are more suitable for mutation studies than the diploids. This is because<br />Haploids are more abundant in nature than diploids<br />All mutations, whether dominant or recessive are expressed in haploids<br />Haploids are reproductively more stable than diploids<br />Mutagens penetrate in haploids more effectively than in diploids <br />
  45. 45. Problem<br />43<br />Consider the following four statements (1-4) about certain desert animals such as kangaroo rat<br />They have dark color and high rate of reproduction and excrete solid urine They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs They feed on dry seeds and do not require drinking water They excrete very concentrated urine and do not use water to regulate body temperature<br />Which two of the above statements for such animals are true?<br />3 and 1 <br />1 and 2<br />3 and 4<br />2 and 3<br />
  46. 46. Problem<br />44<br />Which one of the following is not a characteristic of phylum annelida?<br />Pseudocolelom<br />Ventral nerve cord<br />Closed circulatory system<br />Segmentation<br />
  47. 47. Problem<br />45<br />In human adult females oxytocin<br />Stimulates pituitary to secret vasopressin<br />Causes strong uterine contractions during parturition<br />Is secreted by anterior pituitary<br />Stimulates growth of mammary glands<br />
  48. 48. Problem<br />46<br />The most active phagocytic white blood cells are<br />Eosinophils & lymphocytes<br />Neutrophils & monocytes<br />Neutrophils & eosinophils<br />Lymphocytes & macrophages<br />
  49. 49. Problem<br />47<br />In which of the following male& female game-tophytes do not have free living independent existence?<br />Polytrichum<br />Cedrus<br />Pteris<br />Funaria<br />
  50. 50. Problem<br />48<br />What is vital capacity of our lungs?<br />Inspiratory reserve volume plus expiratory reserve volume<br />Total lung capacity minus residual volume<br />Inspiratory reserve volume plus tidal volume<br />Total lung capacity minus expiratory reserve volume<br />
  51. 51. Problem<br />49<br />Which of the following is heterosporous?<br />Adiantum<br />Equisetum<br />Dryopteris<br />Salvinia<br />
  52. 52. Problem<br />50<br />The blood calcium level is lowered by the deficiency of<br />Both calcitonin & parathormone<br />Calcitonin<br />Parathormone<br />Thyroxin<br />
  53. 53. Problem<br />51<br />The C4 plants are photo synthetically more efficient than C3 plants because<br />The CO2 efflux is not prevented<br />They have more chloroplasts <br />The CO2 compensation point is more<br />CO2 generated during photorespiration is trapped & recycled through PEP carboxylase<br />
  54. 54. Problem<br />52<br />Which one of the following phyla is correctly matched with its general characteristics?<br />Echinodermata-pentamerous radial symmetry & mostly internal fertilization<br />Mollusca-normally oviparous & development through a trochophore or veliger larva<br />Arthropoda-body divided into head, thorax & abdomen & respiration by tracheae<br />Chordate-notochord at some stage & separate anal & urinary openings to the outside<br />
  55. 55. Problem<br />53<br />In germinating seeds fatty acids are degraded exclusively in the<br />Peroxisomes<br />Mitochondria<br />Proplastids<br />Glyoxysomes<br />
  56. 56. Problem<br />54<br />Which one of the following is the correct difference between rod cells & cone cells of our retina?<br /> <br /> Rod cels Cones cells<br />Overall functions Visual in poor light Colour Vision &detailed Vision in bright light <br />Distribution More Evenly distributed concentrated in center of retina all over retina<br />Visual acuity High low<br />Visual pigment contained iodopsionRhodopsin<br />
  57. 57. Problem<br />55<br />In light of recent classification of living organisms into three domains of life (bacteria, archaea & eukarya), which one of the following statements in true about archaea ?<br />Archaea completely different from both prokaryotes & eukaryotes<br />Archaea completely different from prokaryotes<br />Archaea resemble eukarya in all respects<br />Archaea have some novel features that are absent in other prokaryotes & eukaryotes<br />
  58. 58. Problem<br />56<br />Which one of the following proved effective for biological control of nematodal disease in plants?<br />Gliocladiumvirens<br />Paecilomyceslilacinus<br />Pisolithustinctorius<br />Pseudomonas cepacia<br />
  59. 59. Problem<br />57<br />A lake near a village suffered heavymortality of fishes within a few days.consider the following reasons for this?<br />Lots of urea & phosphate fertilizer were used in the crops in the vicinity <br />The area was sprayed with DDT by an aircraft <br />The ake water turned green & stincky<br />Phytoplankton populations in the lake declined initially there by greatly reducing photosynthesis<br />Which of the above were the main causes of fish mortality in the lake?<br />A, C<br />A, B<br />B, C<br />C, D<br />
  60. 60. Problem<br />58<br />The table below gives the population (in thousands) of ten species ( A- J) in four area (p-s) consisting of the number of habitats given within brackets against each. Study the table & answer the question which follows<br />
  61. 61. Problem<br /> <br />Which area out of p-s shows maximum species diversity?<br />s <br />p<br />q<br />r<br />
  62. 62. Problem<br />59<br />During the propagation of a nerve impulse, the action potentials results from the movement of<br />K+ions from intracellular fluid to extracellular fluid<br />Na+ions from extracellular fluid to intracellular fluid<br />K+ions from extracellular fluid to extracellular fluid<br />Na+ ions from intracellular fluid to extracellular fluid<br />
  63. 63. Problem<br />60<br />Consider the following statements concerning food chains<br />Removal of 80% tigers from an area resulted in greatly increased growth of vegetation Removal of most of the carnivorous resulted in an increased population of deers The length of food chains is generally limited to 3-4 trophic levels due to energy loss The length of food chains may vary from 2 to 8 trophic levels <br />Which two of the above statements are correct?<br />A, D<br />A, B<br />B, C<br />C, D<br />
  64. 64. Problem<br />61<br />Modern detergents contain enzymes preparations of<br />Thermoacidophiles<br />Thermophiles<br />Acidophiles<br />Alkaliphiles<br />
  65. 65. Problem<br />62<br />What is antisense technology?<br />When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene<br />RNA polymerase producing DNA <br />A cell displaying a foreign antigen used for synthesis of antigens<br />Producing of somaclonal variants in tissue cultures <br />
  66. 66. Problem<br />63<br />Cornes transplant in humans is almost never rejected. This is because<br />It is composed of enucleated cells<br />It is non-living layer<br />Its cells are least penetrable by bacteria<br />It has no blood loss<br />
  67. 67. Problem<br />64<br /> Which one of the following is incorrect about the characteristics of probionts as envisaged in the abiogenic origin of life?<br />They were partially isolated from the surroundings<br />They could maintain an internal environment<br />They were able to reproduce<br />They could separate combinations of molecules from the surroundings<br />
  68. 68. Problem<br />65<br /> In humans, blood passes from the post caval to the diastolic right atrium of heart due to<br />Stimulation of the sino auricular node<br />Pressure difference between the post caval & atrium<br />Pushing open of the venous valves <br />Suction pull<br />
  69. 69. Problem<br />66<br />Which one of the following is resistant to enzymes action<br />Pollen exine<br />Leaf cuticle<br />Cork<br />Wood fibre<br />
  70. 70. Problem<br />67<br />According to central pollution board (CPCB) which particulate size in diameter of the air pollutants is responsible for greatest harm to human health?<br />1 or less<br />5.2-2.5<br />2.5 Or less<br />1.5 Or less<br />
  71. 71. Problem<br />68<br />Cellulose is the major component of cell walls of<br />Pseudomonas<br />Saccharomyces<br />Pythium<br />Xanthomonas<br />
  72. 72. Problem<br />69<br />What does the filiform apparatus do at the enterence into ovule ?<br />It bring about opening of the follintubt<br />It guides pollen tube from a synergid to egg<br />It helps in the entry of pollen tube into a synergid.<br />It helps in the entry of pollen tube into the embryosac<br />
  73. 73. Problem<br />70<br />Match the disease in the column (i) with the appropriate items (pathogen/prevention / treatment) in column (ii)<br /> <br /> <br />A- (i) ,B- (i), C-(iii), D(iv)<br />A- (ii) ,B- (iii), C-(iv), D(i)<br />A- (i) ,B- (ii), C-(iii), D(iv)<br />A- (ii) ,B- (iv), C-(i), D(iii)<br />
  74. 74. Problem<br />71<br />Carbohydrates are commonly found as starch in plants storage organs. Which of the following five properties of starch(1-5) make it useful as a storage material?<br />Easily translocated, Chemically non react,Easily digested by animals,Osmotically inactive ,Synthesized during photosynthesis<br />The useful properties are<br />1, 3 & 5<br />1 & 5<br />2 & 3<br />2 & 4<br />
  75. 75. Problem<br />72<br />The slow rate of decomposition of fallen logs in nature is due to their<br />Anaerobic environment around them<br />Low cellulose content<br />Low moisture content<br />Poor nitrogen content<br />
  76. 76. Problem<br />73<br />Cry I endotoxinsuptained from bacillus thuringiensis are effective against<br />Nematodes<br />Boll worms<br />Mosquitoes<br />Flies<br />
  77. 77. Problem<br />74<br />Consider the statements given below regarding contraception and answer as directed thereafter Medical termination of pregnancy (MTP) during first trimester is generally safe<br />Generally chances of conception are nill until mother breast feeds the infant upto two years Intrauterine divices like copper-T are effective contraceptors<br />Contraception pills may be taken upto one week after coitus to prevent contraception<br />Which two of the above statements are correct?<br />1, 3<br />1,2<br />2, 3<br />3, 4<br />
  78. 78. Problem<br />75<br />Bacterial leaf blight of rice is caused by a species<br />Alternaria<br />Erwinia<br />Xanthomonas<br />Pseudomonas<br />
  79. 79. Problem<br />76<br />Trichodermaharzianum has proved a useful microorganism for<br />Gene transfer in higher plants<br />Biological control of soil borne plant pathogens<br />Bioremediation of contaminated soils<br />Reclamation of waste lands<br />
  80. 80. Problem<br />77<br />Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?<br />Nephredia of earth worm and malphigian tubules of cockroach-excretory organs<br />Wings of honey bee and wings of crow-homologous organs<br />Thorn of bougainvillea and tendrance of cucurbita-analogous organs<br />Nictitating membrane and brain spot in human eye-vestigial organs<br />
  81. 81. Problem<br />78<br />To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?<br />Physiological barriers<br />Physical barriers<br />Cytokine barriers<br />Cellular barriers<br />
  82. 82. Problem<br />79<br />Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature<br />A transgenic food crop which may help in solving the problem of night blindness in developing countries is<br />Bt soyabean<br />Golden rice<br />Flavrsavr tomatoes<br />Star link maize<br />
  83. 83. Problem<br />80<br />Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?<br />Small intestine: proteins aminoacids<br />Stomach: fats miclles<br />Deuodenum: triglycerides monoglycerides<br />Small intestine: starch disaccharide<br />
  84. 84. Problem<br />81<br />What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?<br />In the absence of HCl secretion, inactive pepsinogen is not converted into the active enzyme pepsin<br />Enterokinase will not be released from the duodenal mucosa and so tripsinogen is not converted to trypsin<br />Gastric juice will be deficient in chymosin<br />Gastric juice will be deficient in pepsinogen<br />
  85. 85. Problem<br />82<br />Nitrogen fixation in root nodules of alnus is brought about by<br />Frankia<br />Azorhizobium<br />Bradyrhizobium<br />Clostridium<br />
  86. 86. Problem<br />83<br />Which one of the following is the correct statement regarding the particular psychotropic drug specified? <br />Morphine leads to delusions and disturbed emotions<br />Barbiturates cause relaxation and temporary euphoria<br />Hashish causes after thought perceptions and hallucinations<br />Opium stimulates nervous systems causes hallucinations<br />
  87. 87. Problem<br />84<br />The energy releasing process in which the substrate is oxidized without an external electron acceptor is called<br />Aerobic respiration<br />Glycolysis<br />Fermentation<br />Photorespiration<br />
  88. 88. Problem<br />85<br />The haemoglobin of a human foetus<br />Has only two protein subunits instead of four<br />Has a higher affinity for oxygen than that of an adult<br />Has a lower affinity for oxygen than that of an adult<br />Its affinity for oxygen is the same as that of an adult<br />
  89. 89. Problem<br />86<br />Which one of the following pairs of plant structures has haploid number of chromosomes?<br />Nucellus & antipodal cells <br />Egg nucleus & secondary nucleus<br />Megaspore mother cell <br />Egg cell & antipodal cells<br />
  90. 90. Problem<br />87<br />Which one of the following items gives its correct total number?<br />Types of diabetes-3<br />Cervical vertebrae in humans-8 <br />Floating ribs in humans-4<br />Amino acids found in proteins-16<br />
  91. 91. Problem<br />88<br />Keeping in view the ‘fluid mosaic model’ for the structure of cell membrane, Which one of the following statement is correct with respect to the movements of lipids & proteins from one lipid monolayer to the other (described as flipflop movement)?<br />While proteins can flip-flop, lipids cannot<br />Neither lipids, nor proteins can flip-flop<br />Both lipids & proteins can flip-flop<br />While lipids can rarely flip-flop, proteins cannot<br />
  92. 92. Problem<br />89<br />Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide ?<br />Loose smut of wheat <br />Black rust of wheat<br />Bacterial leaf blight of rice<br />Downy mildew of grapes<br />
  93. 93. Problem<br />90<br />Main objective of production /use of herbicide resistant GM crops is to<br />Encourage eco-friendly herbicides<br />Reduce herbicide accumulation in food articles for health safety<br />Eliminate weeds from the field without the use of manual labour<br />Eliminate weeds from the field without the use of herbicides<br />
  94. 94. Problem<br />91<br />Which one of the following, in birds, indicates their reptilian ancestry?<br />Two special chambers crop & gizzard in their digestive tract<br />Eggs with a calcareous shell<br />Scales on their hind limbs<br />Four-chambered heart <br />
  95. 95. Problem<br />92<br />Consider the following statements about bio-medical technologies<br />During open heart surgery blood is circulated in the heart-lung machine<br />Blockage in coronary arteries is removed by angiography <br />Computerized axial tomography (CAT) shows detailed internal structures as seen in a section of body <br />X-ray provides clear & detailed images of organs like prostate glands & lungs<br />Which two of the above statements are correct?<br />1 & 3<br />1 & 2<br />2 & 4<br />3& 4<br />
  96. 96. Problem<br />93<br />Ascaris is characterized by<br />Presence of true coelom but absence of metamerism<br />Presence of true coelom & metamerism (metamerization) <br />Absence of true coelom but presence of metamerism<br />Presence of neither true coelom nor metamerism<br />
  97. 97. Problem<br />94<br />In humans, at the end of the first meiotic division, the male germ cells differentiate into the <br />Spermatids<br />Spermatozonia<br />Primary spermatocytes<br />Secondary spermatocytes<br />
  98. 98. Problem<br />95<br />Electrons from excited chlorophyll molecule of photosystem II are accepted first by <br />Quinine<br />Ferrodoxin<br />Cytochrome-b<br />Cytochrome-f<br />
  99. 99. Problem<br />96<br />Importance of day length in flowering of plants was first shown in<br />Cotton<br />Petunia<br />Lemna<br />Tobacco<br />
  100. 100. Problem<br />97<br />The fleshy receptacle of syconus of fig encloses a number of<br />Berries <br />Mericarps<br />Achenes<br />Samaras<br />
  101. 101. Problem<br />98<br />Which one of the following scientst’s name is correctly matched with the theory putforth by him?<br />De Vries-natural selection<br />Mendel-theory of pangenesis<br />Weismann-theory of continuity of germ plasm<br />Pasteur-inheritance of acquired characters<br />
  102. 102. Problem<br />99<br />Given below is a diagrammatic crossection of a single loop of human cochlea<br />Which one of the following options Correctly represents the names of three different parts ?<br />D : Sensory hair cells, A : endolymph B : tectorial membrane<br />A : perilymph, B : tectorialmembrane, C : endolymph<br />B : tectorial membrane, C : perilymph, D : secretory cells<br />C : endolymph, D : sensory hair cells, A : serum.<br />
  103. 103. Problem<br />100<br />Which one of the following options correctly represents the names of three different parts?<br />D : sensory hair cells, A:endolymph B: tectorial membrane<br />A: perilymph, B: tectorial membrane, C: endolymph<br />B: tectorial membrane C: perilymph D : secretory cells<br />C: endolymph D : sensory hair cells A : serum<br />
  104. 104. For solution visit www.vasista.net<br />

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