NTSE SAT Biology Papers 07

NTSE SAT Biology Papers 07

This is NTSE SAT Biology Papers 07 .. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Match the following: (i) Vaccine — Wilmut (ii) Dolly — Sir. Ronald Ross (iii) Plasmodium — Edward Jenner
  • A
    (iii), (i), (ii)
  • B
    (ii), (i), (iii)
  • C
    (i), (iii), (ii)
  • D
    (ii), (iii), (i)
    Correct
2
Which one of the following is an Italian honey bee?
  • A
    Apis mellifera
    Correct
  • B
    Apis adamsoni
  • C
    Apis dorsata
  • D
    Apis florea
3
Hyperthyroidism causes ____________
  • A
    Exophthalmic goiter
    Correct
  • B
    Cretinism
  • C
    Myxedema
  • D
    Simple goiter
4
Pick the odd one out with respect to Mendel’s observation.
  • A
    Yellow and green seeds
  • B
    Tall and dwarf stem
  • C
    Violet and white flowers
  • D
    Smooth and rough stem
    Correct
5
Pick out the pollutant.
  • A
    Hydrogen
  • B
    Carbon – monoxide
    Correct
  • C
    Oxygen
  • D
    Nitrogen
6
The name ‘protoplasm’ was coined by:
  • A
    Purkinje
    Correct
  • B
    Anton van Leeuwenhoek
  • C
    Robert Hooke
  • D
    Robert Brown
7
BCG is an effective vaccine to prevent:
  • A
    Diphtheria
  • B
    Tuberculosis
    Correct
  • C
    Pertussis
  • D
    Tetanus
8
In frog oxygenated blood and deoxygenated blood gets mixed up due to
  • A
    Four chambered heart
  • B
    One chambered heart
  • C
    Three chambered heart
    Correct
  • D
    Two chambered heart
9
Which one of the following is correct matched set? Column A a. Flower b. Calyx and corolla c. Androecium and Gynoecium d. Ovules e. Pollen grains Column B i. Female reproductive ii. Reproductive Whirl iii. Male reproductive part iv Reproductive v. Accessory whirls
  • A
    a—iii b—iv c—I d—ii e—v
  • B
    a—iv b—v c—ii d—i e—iii
    Correct
  • C
    a—ii b—iii c—iv d—v e—i
  • D
    a—iii b—ii c—iv d—i e—v
10
The correct pathway of reflex arc is
  • A
    \(Receptor\rightarrow afferent\;neuron \rightarrow association \; neuron \rightarrow efferent \; neuron \rightarrow \; effectro\)
    Correct
  • B
    \(Receptor\rightarrow efferent\;neuron \rightarrow association \; neuron \rightarrow afferent \; neuron \rightarrow \; effector\)
  • C
    \(Receptor\rightarrow effector \;neuron \rightarrow association \; neuron \rightarrow efferent \; neuron \rightarrow \; effectro\)
  • D
    \(Receptor\rightarrow Association\;neuron \rightarrow Afferent\; neuron \rightarrow Efferent\; neuron \rightarrow \; effector\)
11
The algae which is used in the manufacture off potassium
  • A
    Liminaria
    Correct
  • B
    Chlamydomonas
  • C
    Gelidium
  • D
    Porphyra
12
Companion cells are important in phloem tissue because
  • A
    It conducts the food through it
  • B
    It controls the flow of food through sieve tubes
    Correct
  • C
    It holds the position of sieve cells in place
  • D
    It gives mechanical support to sieve tubes
13
If the platelet count in the blood reduced and redness in palms and soles are seen the disease is said to be
  • A
    Bird flu
  • B
    Dengue
    Correct
  • C
    Typoid
  • D
    Chikungugya
14
Colchicine is a chemical substance used to bring about the following process artificially
  • A
    Polyploidy
    Correct
  • B
    Genetic modification
  • C
    Intervarietal hybridization
  • D
    Induced mutation
15
The surgery called vitrectomy for human eye is done when there is
  • A
    Loosing of elasticity in lens
  • B
    Decrease in the transparency of vitreous humor
    Correct
  • C
    Decrease in the transparency of lens
  • D
    Decrease in the transparency of aqueous humor