Jstse 2015 Biology

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Junior Science Talent Search Exam. (2014-2015)

Subject: Biology

Time: --- M.M. 40

General Instructions:

Read the following instructions carefully before you answer the questions. Answers are to be given

on a separate answer sheet. Use only blue/black point pen.

Write your roll no. very clearly (one digit in one block) on this booklet and on the answer

sheet (OMR sheet)

This question paper comprises four Parts I, II, III and IV and you. See that parts I, II and III

contain forty questions each and Part IV contains 30 questions. Answer all the 150 questions.

Answer each question by filling the correct alternative among the four choices on the answer

sheet as shown in example below:

Example:

Use of whitener / white fluid is strictly prohibited.

Separate sheet has been provided for rough work in this test booklet.

Now turn to the next page and start answering the questions.

Biology

51. The leaves of lotus plant float on water due to the presence of:

a) Chlorenchyma

b) Collenchyma

c) Sclerenchyma

d) Aerenchyma

52. Species of plants and animals found exclusively is a particularly area are called:

a) Endangered

b) Biological

c) Endemic

d) Exotic

53. The organisms present in the faces of mammals which are indicators of quality of water are:

a) Bacteria

b) Fungus

c) Algae

d) Virus

54. Rainfall patterns prevailing in an area generally depends on:

a) Temperature

b) Wind patterns

c) Pressure increase



d) Pollution levels

55. The essential nutrients for the plants except carbon, oxygen and hydrogen are B out of

which the macronutrients are C. B and C are respectively:

a) Sixteen, six

b) Thirteen, six

c) Sixteen, seven

d) Thirteen, seven

56. The antibiotic penicillin inhibits the growth of bacteria by blocking the process which helps it

to build its:

a) Cell wall

b) Cell membrane

c) Endoplasmic Reticulum

d) Mitochondria

57. The smooth endoplasmic reticulum helps in the manufacture of:

a) Lipids

b) Glycogen

c) Sugars

d) Proteins

58. The plants having inconspicuous or hidden reproduction organs are placed in:

a) Cryptogamae

b) Phenerogamae

c) Angiospermae

d) Gymnospermae

59. The movement of water molecules from region of high concentration to a region of low

concentration through a selectively permeable membrane is called:

a) Diffusion

b) Osmosis

c) Active Transport

d) Facilitated Transport

60. The engulfing of food and other material from the external environment by Amoeba is

termed:

a) Passive transport

b) Endocytosis

c) Pinocytosis

d) Plasmolysis

61. The free living cells were first discovered by:

a) Robert Brown

b) T. Schwann

c) Robert Hooke

d) Leeuwenhock

62. The fibrous tissue with great strength but limited flexibility is:

a) Tendon

b) Ligament

c) Cartilage

d) Areolar Tissue

63. The structure marked as marked as E in the figure below is:

a) Cytosome



b) Water vacuole

c) Food vacuole

d) Cytopyge

64. A true body cavity called coelom is present in phylum:

a) Coelenterata

b) Platyhelminthes

c) Nematode

d) Annelida

65. The record of all endangered plants and animals is called as:

a) Flora

b) Monograph

c) Manual

d) Red Data Book

66. Best time for the removal of weed is:

a) Before they produced flower and seeds

b) As soon as they start producing flower and seeds

c) Only after they have produced flower and seeds

d) After giving proper irrigation to the fields

67. The plasma membrane of the cells is mainly composed of:

a) Sugars and lipids

b) Proteins and sugars

c) Proteins and lipids

d) Sugars and fats

68. Clearing of forests and using that land for other purposes is called:

a) Deforestation

b) Afforestation

c) Social forestry

d) Reforestation

69. If the cell is placed in a hypertonic solution the cell will:

a) Shrink

b) Swell up

c) Remain of same size

d) Will burst

70. The girth of the stem or stem increases due to the activity of the:

a) Apical meristem

b) Cambium

c) Inter calary Meristem

d) Epithelium

71. The figure below represents:

a) Fibres

b) Tracheids

c) Vessels

d) Companion cell

72. IRIS of the Eye contains:

a) Striated muscle

b) Smooth muscle

c) Cardiac muscle



d) All the above

73. The Origin of Species is written by:

a) Charles Brown

b) Lamark

c) Robert Hooke

d) Charles Darwin

74. Mushroom belongs to:

a) Algae

b) Fungi

c) Plantae

d) Protozoa

75. Which is called Amphibians of the plant kingdom:

a) Gymnosperms

b) Bryophyte

c) Thallophyta

d) Angiosperms

76. The largest group of animal kingdom is:

a) Arthropoda

b) Mollusca

c) Porifera

d) Cnidarian

77. Mammals who do not give birth to young one

a) Rat

b) Bat

c) Echidna

d) Cat

78. Peptic ulcer is caused by:

a) Acidity related pain and bleeding in stomach

b) Stressful life

c) Helicobacter pylori

d) Virus

79. Which of following is green-house gases?

a) Carbon dioxide

b) Methane

c) Nitrous oxide

d) All the above

80. Which of the following is a micronutrient?

a) Iron

b) Sulphur

c) Calcium

d) Potassium

81. The part of seed which grows into root on germinatron:

a) Cotyledon

b) Radicle

c) Plumule

d) None

82. The largest bone in human body:



a) Femur

b) Fibula

c) Tibia

d) Ulna

83. Function of gall bladder in our body is:

a) To produce bile

b) To consume bile

c) To store bile

d) None

84. Blood pressure in a normal person is:

a) 120/80 mm Hg.

b) 80/120 mm Hg.

c) 140/80 mm Hg.

d) 120/60 mm Hg.

85. July 11, is observed as:

a) World population day

b) No tobacco day

c) World Health day

d) World Environment day

86. Which type of carbohydrate stored in animal:

a) Starch

b) Cellulose

c) Glycogen

d) Glucose

87. 2, 4-D is a:

a) Insecticide

b) Pesticide

c) Weedicide

d) All of the above

88. Following is the example of internal fertilisation:

a) Hen

b) Fish

c) Star fish

d) Frog

89. Production of Dolly Sheep by:

a) Sexual reproduction

b) Fragmentation

c) Regeneration

d) Cloning

90. Rhizobium lives in the :

a) Yeast cells

b) Stem of green plant

c) Air

d) Root nodules of leguminous plant

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Jstse 2015 Biology