MODEL QUESTION PAPER
INSTRUCTION:
• Answer to this paper must be written on the paper provided separately.
• You will not be allowed to write during the first 10 minutes. This time to
be spent in reading the question paper.
SECTION – A (40 Marks)
(Attempt all questions from this Section)
Question 1: Choose the correct Answer [15]
i) Loss of water as droplets from the hydathodes is called
a) Transpiration b) bleeding
c) guttation d) evaporation
ii) Synthesis phase in the cell cycle is called so, because of the synthesis of more
a) Glucose b) proteins
c) RNA d) DNA
iii) Loss of hearing due to the rupture of
a) Ear drum b) pericardium
c) cornea d) pinna
iv) The prime source of chlorofluorocarbons is
a) Vehicular emissions b) refrigeration equipment
c) sewage d) effluents
v) Oxygenated blood to heart is supplied by
a) Hepatic artery b) coronary artery
c) renal artery d) pulmonary artery
vi) Assertion (A) There is frequent urination in summer than in winter.
Reason (R) In summer, we lose a lot of water as sweat, so the kidneys
reabsorb more water. Hence, urine formed is less in summer than in winter.
a) Both A and R are true
b) Both A and R are false
c) A is true and R is false
d) A is false and R is true
vii) The age restrictions for marriage for boys and girls by law in India is
a) Boys 18 years, Girls 21 years
b) Boys 17 years, Girls 16 years
c) Boys 21 years, Girls 18 years
d) Boys 20 years, Girls 17 years
viii) Hari is fond of watching the fish in an aquarium. So he set up an aquarium
in his house. Along with a number of freshwater fish, he also placed a
clown fish which is a salt water fish. After few hours, the cown fish was
, found dead floating on water. This was due to
a) Endosmosis b) exosmosis
c) Osmoregulation d) excretion
ix) The solvent used for used for dissolving chlorophyll while testing a leaf for
starch is
a) Sodium hydroxide b) lime water
b) Water d) ethyl alcohol
x) Which one of the following is the phenotypic monohybrid ratio in F2-
generation?
a) 3:1 b) 1:2:1 c) 2:2 d) 1:3
xi) The other name of sex chromosomes is
a) Autosomes b) allosomes
c) somatic chromosomes d) none of the above
xii) The ground substance present in chloroplast is
a) Stoma b) stroma
c) grana d) thylakoids
xiii) During guttation
a) Water is driven out during night
b) Water is excreted in impure form
c) Water is excreted in liquid phase
d) All of the above
xiv) The stress hormone in plants which functions during a drought is
a) Auxins b) abscisic acid
c) ethylene d) cytokinins
xv) Which of the following is used as an atmospheric pollution indicator?
a) Lepidoptera
b) Pollutant
c) Plants and animals
d) Lichens
Question 2:
i) Fill in the Blanks [5]
a) Sewage is the liquid waste from _______activities.
b) Modern humans have 46 chromosomes. Their sperms and eggs will
have _________ chromosomes each.
c) An anticoagulant present in the blood is__________.
d) The sight of light reaction in the cells of a green leaf is___________.
e) The statistical study of human population is called___________.
ii) Note the relationship between the first two words and suggest the
suitable word/words for the fourth place. [5]
a) Stimulus : Receptor :: Impulse : ___________
INSTRUCTION:
• Answer to this paper must be written on the paper provided separately.
• You will not be allowed to write during the first 10 minutes. This time to
be spent in reading the question paper.
SECTION – A (40 Marks)
(Attempt all questions from this Section)
Question 1: Choose the correct Answer [15]
i) Loss of water as droplets from the hydathodes is called
a) Transpiration b) bleeding
c) guttation d) evaporation
ii) Synthesis phase in the cell cycle is called so, because of the synthesis of more
a) Glucose b) proteins
c) RNA d) DNA
iii) Loss of hearing due to the rupture of
a) Ear drum b) pericardium
c) cornea d) pinna
iv) The prime source of chlorofluorocarbons is
a) Vehicular emissions b) refrigeration equipment
c) sewage d) effluents
v) Oxygenated blood to heart is supplied by
a) Hepatic artery b) coronary artery
c) renal artery d) pulmonary artery
vi) Assertion (A) There is frequent urination in summer than in winter.
Reason (R) In summer, we lose a lot of water as sweat, so the kidneys
reabsorb more water. Hence, urine formed is less in summer than in winter.
a) Both A and R are true
b) Both A and R are false
c) A is true and R is false
d) A is false and R is true
vii) The age restrictions for marriage for boys and girls by law in India is
a) Boys 18 years, Girls 21 years
b) Boys 17 years, Girls 16 years
c) Boys 21 years, Girls 18 years
d) Boys 20 years, Girls 17 years
viii) Hari is fond of watching the fish in an aquarium. So he set up an aquarium
in his house. Along with a number of freshwater fish, he also placed a
clown fish which is a salt water fish. After few hours, the cown fish was
, found dead floating on water. This was due to
a) Endosmosis b) exosmosis
c) Osmoregulation d) excretion
ix) The solvent used for used for dissolving chlorophyll while testing a leaf for
starch is
a) Sodium hydroxide b) lime water
b) Water d) ethyl alcohol
x) Which one of the following is the phenotypic monohybrid ratio in F2-
generation?
a) 3:1 b) 1:2:1 c) 2:2 d) 1:3
xi) The other name of sex chromosomes is
a) Autosomes b) allosomes
c) somatic chromosomes d) none of the above
xii) The ground substance present in chloroplast is
a) Stoma b) stroma
c) grana d) thylakoids
xiii) During guttation
a) Water is driven out during night
b) Water is excreted in impure form
c) Water is excreted in liquid phase
d) All of the above
xiv) The stress hormone in plants which functions during a drought is
a) Auxins b) abscisic acid
c) ethylene d) cytokinins
xv) Which of the following is used as an atmospheric pollution indicator?
a) Lepidoptera
b) Pollutant
c) Plants and animals
d) Lichens
Question 2:
i) Fill in the Blanks [5]
a) Sewage is the liquid waste from _______activities.
b) Modern humans have 46 chromosomes. Their sperms and eggs will
have _________ chromosomes each.
c) An anticoagulant present in the blood is__________.
d) The sight of light reaction in the cells of a green leaf is___________.
e) The statistical study of human population is called___________.
ii) Note the relationship between the first two words and suggest the
suitable word/words for the fourth place. [5]
a) Stimulus : Receptor :: Impulse : ___________
