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In each of the questions, pick one of the alternatives (1), (2), (3), (4) which you consider is correct or
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Grade 10 – March 2011
Name : …………………………………………………………………………………………………………………………………………………
1) What component of blood destroy micro-organisms?
(1) Red blood cells
(2) Plasma
(3) White blood cells
(4) Platelets
2) In which vessel contains oxygenated blood?
(1) superior vena cava
(2) inferior vena cava
(3) pulmonary vein
(4) portal vein
3) Human white blood cells always
(1) contain fibrin
(2) contain a nucleus
(3) biconcave
(4) haemoglobin
4) Which area of the heart contains the tri cuspid valve?
(1) at the base of the pulmonary artery
(2) at the base of the aorta
(3) between the left atrium and the left ventricle
(4) between the right atrium and the right ventricle
5) Patient who is suffering from leukemia (blood cancer)
(1) his white blood cells will increase unusually
(2) his white blood cells will reduced unusually
(3) his red blood cells will increase unusually
(4) his red blood cells will decreased unusually
6) A type of a white blood cell which has no granules (agranular)
(1) neutrophils
(2) eosinophils
(3) monocyte
(4) basophils
7) Which blood cell does not contain a nucleus?
(i) monocyte
(ii) lymph cells
(iii) platelets
(iv) eosinophils
8) Which human white blood cell is more in percentage?
(i) eosinophils
(ii) basophils
(iii) monocyte
(iv) neutrophils
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9) There are three statements regarding arteries & veins
A – Arteries have no valves. Veins have valves
B – Walls of the arteries & veins have been formed equally
C – Unlike in veins, the blood in arteries flows in a higher pressure
Which of the above statements are correct?
(1) A and B only (2) B & C only
(3) A and C only
(4) A, B and C
10) Dengue can be identified due to the decreased amount of
(i) neutrophils
(ii) eosonophils (iii) basophils
(iv) platelets
11) Select the correct statement regarding the function of the heart
(i)
Right atrium contracts after the contraction of left atrium
(ii)
Right ventricle contracts after the contraction of left ventricle
(iii)
left & right ventricles contract after the contraction of left & right atria
(iv)
right atrium & right ventricle contracts after the contraction of left atrium & left
ventricle
12) The ratio of red blood capsules to white blood capsules in the blood of normal healthy person is
about 600:1. However during an infection this ratio changes to around 100:1
In such case
(1)
(2)
(3)
(4)
more white corpuscles have been formed
more red corpuscles have been destroyed
blood has got diluted
red corpuscles have destroyed the white corpuscles
13) Which of the following processes utilizes carbon dioxide of the atmosphere?
(1) Respiration (2) Transpiration
(3) Photosynthesis
(4) Decay
14) The genes that transmit characteristics from parents to off-springs are found in
(1) Mitochondria
(2) Vacuoles
(3) Cytoplasm
(4) Chromosomes
(3) C, H and N
(4) C, H, O and N
15) The elements contained in glucose are
(1) C and H
(2) C, H and O
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16) The process by which living cell obtains energy is
(1) Excretion
(2) digestion
(3) respiration
(4) fission
17) Which of the following could not be a product of respiration in plants?
(1) Carbon dioxide
(2) Energy
(3) Oxygen
(4) Water
(3) Water
(4) Energy
18) A product of photosynthesis in plant is
(1) Carbon dioxide
(2) Oxygen
19) Which of the following is responsible for the transmission of hereditary characteristics of man from
one generation to the other?
(1) Cell wall
(2) Cytoplasm
(3) Mitochondria
(4) Genes
20) Which of the following is found in plant cells but not in animal cells?
A-Cell wall
B-Central vacuoles
(1) A and B
C-Nucleus
(2) A and C
D-Plasma membrane
(3) B and C
(4) A and D
21) A structure that can be seen only in plant cells, but not in animal cells
(1) vacuole
(2) golgi body
(3) plasma membrane (4) endoplasmic reticulum
22) Which of the elements indicated below are isotopes?
Element
number of neutrons
mass number
A
146
238
B
146
239
C
144
239
D
147
239
(1) A & B
(2) B & D
(3) A & D
(4) A & C
23) The mass number of an atom of the element X is 39. Its atomic number is 19. Which of the following
statements are correct, regarding this element?
(A) the number of protons contain in an atom X is 19
(B) the number of neutrons contained in an atom of X is 39
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(C) the number of electrons contained in an atom of X is 39
(D) The number of neutrons contained in an atom X is 20
(1) only A and B are correct
(2) only B and C are correct
(3) only C and D are correct
(4) only A and D are correct
24) Which of the following ions have the same number of ‘e’similar to the chloride ion (Cl-)?
(1) Na+
(2) K+
(3) O2-
(4) Mg2-
25) The modern periodic table is based on the feature,
(1) mass number
(2) atomic number
(3) atomic volume
(4) ‘e’ configuration
26) To which group does the element having the electronic configuration of 2,8,1 belong?
(1) Group I
(2) Group II
(3) Group III
(4) Group IV
27) The number (p), (e) (n) contained in an atom of the two varieties X and Y are shown
Element
X
Y
p
16
16
e
16
18
n
18
17
Which of the following, regarding X and Y, is correct?
(1) X is a cation
(2) Y has greater mass than X
(4) X and Y are different elements
(4) Y is an anion
28) Which of the following gases cannot be considered as a rare gas?
(1) Helium
(2) Argon
(3) Nitrogen
(4) Neon
29) Which of the following ion’s number of ‘e’ are equal to the number ‘e’ in fluoride ion
(The atomic numbers of the elements O=8, F=9, Na=11, Cl=17 and Ca=20)
(A) O2- (B) Na+ (C) Ca2+ (D) Cl(1) A and B
(2) B and C
(3) C and D
(4) A and D
30) In the atoms of two elements found in the same period of the periodic table,
(1) number of electrons is equal
(2) number of protons is equal
(3) number of neutrons is equal
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(4) number of energy levels is equal
31)
Element
X
Y
p
16
16
e
16
18
n
18
17
Three statements regarding the above X and Y atomic species are given below
(A) the atomic numbers of X and Y are equal
(B) the atomic mass of X and Y are equal
(C) the electronic configurations of X and Y are equal
Out of the statement, the correct one/ones is/are
(1) A only
(2) B only
(3) C only
(4) A and C only
32) The atomic number of an element is 19. The number of ‘e’in its outer most energy level is
(1) 1
33)
40
18X
(2) 9
(3) 18
(4) 19
are given below. Which one is the correct statement?
(1) the atomic number is 40
(2) the mass number is 18
(3) there are 40 ‘e’, out side the nucleus (4) there are 18 protons in the nucleus
34) The element 4020 X, forms an ion in the form X2+. Number of electrons, equal to the number of
electrons in that ion is contained in
(1) Na+ (2) K+
(3) F-
(4) Al+3
35)Following are some features stated about the element
63
29X
(a) Its mass number is 63
(b) Its atomic number is 63
(c) The number of neutrons in its atom is 29
(d) The number of electrons in its atom is 29
Which of the above statements are correct?
(1) a and c only (2) b and c only (3) a and d only (4) b and d only
36) There are 11 ‘p’ and 12 ‘n’ in an atom of the element Na. Which is the standard way?
(1)
12
11
Na
(2)
11
12
Na
(3)
23
11
Na
(4)
11
23Na
37) A monatomic gas is
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(1) Nitrogen
Particles
A
B
C
D
E
(2) Hydrogen
No. of protons
17
18
19
20
20
No of neutrons
20
20
20
20
22
(3) Helium
(4) Oxygen
No of electrons
18
18
18
20
20
38) The isotopes are
(1) A and B
(2) A, B and C
(3) D and E
(4) A, B, C and D
39) A positive ion is
(1) A
(2) B
(3) C
(4) D
40) The neutral particle / particles is / are
(1) B only
(2) D only
(3) B and D only (4) B, D and E only
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