PMT QUESTION PAPER 2009 51. The bacterium Bacillus thuringiensis is widely used in contemporary biology as (1) Indicator of water pollution (2) Insecticide (3) Agent for production of dairy products (4) Source of industrial enzyme Sol. (2) 52. Chipko movement was launched for the protection of (1) Grasslands (2) Forests (3) Livestock (4) Wet landsSol. (2) 53. A health disorder that results from the deficiency of thyroxine in adults and characterized by (i) a low metabolic rate, (ii)increase in body weight and (iii) tendency to retain water in tissues is (1) Hypothyroidism (2) Simple goitre (3) Myxoedema (4) Cretinism Sol. (3) 54. Elbow joint is an example of (1) Pivot joint (2) Hinge joint (3) Gliding joint (4) Ball and socket joint Sol.
(2) 55. The correct sequence of plants in a hydrosere is 1) Oak – Lantana – Scirpus – Pistia – hydrilla – Volvox (2) Volvox – Hydrilla – Pistia – Scirpus – Lantana – oak (3) Pistia – Volvox – Scirpus – hydrilla – Oak – Lantana (4) Oak – Lantana – Volvox – Hydrilla – Pistia – Scirpus Sol. (2) 56. Mannitol is the stored food in (1) Chara (2) Porphyra (3) Fucus (4) Gracillaria Sol. (3) 57.
The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is (1) Cuboidal (2) Glandular (3) Ciliated (4) Squamous Sol. (3) 58.Which one of the following pairs of food components in humans reaches the stomach totally undigested (1) Protein and starch (2) Fat and starch (3) Fat and cellulose (4) Starch and cellulose Sol. (3) 59.
Uric acid is the chief nitrogenous component of the excretory products of (1) Man (2) Earthworm (3) Cockroach (4) Frog Sol. (3) 60. Which one of the following groups of animals is bilaterally symmetrical and triploblastic (1) Coelenterates (Cnidarians) (2) Aschelminthes (round worms) (3) Ctenophores (4) Sponges Sol. (2) 61.Tiger is not a resident in which one of the following national park (1) Ranthamhbor (2) Sunderbans (3) Gir (4) Jim Corbett Sol.
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(3) 62. A change in the amount of yolk and its distribution in the egg will affect (1) Formation of zygote (2) Pattern of cleavage (3) Number of blastomeres produced (4) Fertilization Sol. (2) 63. When breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the age of one year are likely to suffer from (1) Marasmus (2) Rickets (3) Kwashiorkor (4) Pellagra Sol.
(1) 64.Stroma in the chloroplasts of higher plant contains (1) Light-independent reaction enzymes (2) Light-dependent reaction enzymes (3) Ribosomes (4) Chlorophyll Sol. (1) 65. Which one of the following correctly describes the location of some body parts in the earthworm Pheretima (1) Two pairs of accessory glands in 16-18 segments (2) Four pairs of spermathecae in 4 – 7 segments (3) One pair of ovaries attached at intersegmental septum of 14th and 15th segments (4) Two pairs of testes in 10th and 11th segments Sol. (4) 66.
Foetal ejection reflex in human female is induced by 1) Pressure exerted by amniotic fluid (2) Release of oxytocin from pituitary (3) Fully developed foetus and placenta (4) Differentiation of mammary glands Sol. (3) 67. Which one of the following has haplontic life cycle (1) Funaria (2) Polytrichum (3) Ustilago (4) Wheat Sol.
(3) 68. Which of the following plant species you would select for the production of bioethanol (1) Brassica (2) Zea mays (3) Pongamia (4) Jatropha Sol. (4) 69. Which part of human brain is concerned with the regulation of body temperature (1) Medulla Oblongata (2) Cerebellum (3) Cerebrum (4) Hypothalamus Sol. (4) 70.Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it (1) Heart wall – involuntary unstriated muscle (2) Biceps of upper arm – Smooth muscle fibres upper arm (3) Abdominal wall – Smooth muscle (4) Iris – Involuntary smooth muscle Sol. (4) 71.
In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revolution. This is an example of (1) Natural selection whereby the darker forms were selected (2) Appearance of the darker coloured individuals due of very poor sunlight (3) Protective mimicry 4) Inheritance of darker colour character acquired due to the darker environment Sol. (1) 72. Oxygenic photosynthesis occurs in (1) Chromatium (2) Oscillatoria (3) Rhodospirillum (4) Chlorobium Sol. (2) 73.
The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by (1) Periodic infusion of genetically engineered lymphocytes having functional ADA cDNA (2) Administering adenosine deaminase activators (3) Introducing bone marrow cells producing ADA into cells at early embryonic stages (4) Enzyme replacement therapy Sol. 3) 74. The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is (1) Maturing (2) Elongating (3) Widening (4) Differentiating Sol. (1) 75.
In barley stem vascular bundles are (1) Open and scattered (2) Closed and scattered (3) Open and in a ring (4) Closed and radial Sol. (2) 76. Sickle cell anemia is (1) An autosomal linked dominant trait (2) Caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin (3) Caused by a change in a single base pair of DNA 4) Characterized by elongated sickle like RBCs with a nucleus Sol. (3) 77. If a live earthworm is pricked with a needle on its outer surface damaging its gut, the fluid that comes out is (1) Excretory fluid (2) Coelomic fluid (3) Haemolymph (4) Slimy mucus Sol.
(2) 78. There is on DNA in (1) An enucleated ovum (2) Mature RBCs (3) A mature spermatozoan (4) Hair root Sol. (2) 79. Point mutation involves (1) Insertion (2) Change in single base pair (3) Duplication (4) Deletion Sol. (2) 80.
Which one of the following has maximum genetic diversity in India (1) Teak (2) Mango (3) Wheat (4) Tea Sol. (2)
