Qstnid -Ii-2-a- (A) Label The Parts 1 And 2. (A) Name The Tropic Movement Shown By Part 1. (A) Part 1 Is Affected By Two Stimuli. Name Them. Which One Of The Two Is Stronger? (A) What Is Thigmotropism ? Give One Example. (A) What Is Meant By &Lsquo;positive’ And &Lsquo;negative’ Tropic Movements In Plants? (B) Mention The Exact Location Of The Following : [5] (B) Testis (B) Incus (B) Thylakoids (B) Amniotic Fluid (B) Corpus Callosum (A) Label The Parts 1 And 2. (A) Name The Tropic Movement Shown By Part 1. (A) Part 1 Is Affected By Two Stimuli. Name Them. Which One Of The Two Is Stronger? (A) What Is Thigmotropism ? Give One Example. (A) What Is Meant By &Lsquo;positive’ And &Lsquo;negative’ Tropic Movements In Plants? (B) Mention The Exact Location Of The Following : [5] (B) Testis (B) Incus (B) Thylakoids (B) Amniotic Fluid (B) Corpus Callosum - Previous Year Paper Year:2019

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ICSE-X-Biology

Previous Year Paper year:2019

with Solutions - page 4

Qstn# II-2-a Prvs-Qstn Next-Qstn

#2-a
(a) Label the parts 1 and 2.
(a) Name the tropic movement shown by part 1.
(a) Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
(a) What is Thigmotropism ? Give one example.
(a) What is meant by ‘Positive’ and ‘Negative’ tropic movements in plants?
(b) Mention the exact location of the following :
[5]
(b) Testis
(b) Incus
(b) Thylakoids
(b) Amniotic fluid
(b) Corpus callosum
(a) Label the parts 1 and 2.
(a) Name the tropic movement shown by part 1.
(a) Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
(a) What is Thigmotropism ? Give one example.
(a) What is meant by ‘Positive’ and ‘Negative’ tropic movements in plants?
(b) Mention the exact location of the following :
[5]
(b) Testis
(b) Incus
(b) Thylakoids
(b) Amniotic fluid
(b) Corpus callosum
Ans : (a) 1 - Radicle 2 - Plumule
(a) Hydrotropism
(a) Gravity and Water - Water is stronger.
(a) Growth movement of plants in response to touch stimulus, e.g., Sweet Pea
(a) Movement of parts of plant towards source of stimulus is positive and away from source of stimulus is negative.
(b) (b) Inside Scrotum
(b) Between malleus and stapes.
(b) In the stroma (matrix) of chloroplast
(b) Cavity between amnion and embryo
(b) Between two cerebral hemispheres.
(a) 1 - Radicle 2 - Plumule
(a) Hydrotropism
(a) Gravity and Water - Water is stronger.
(a) Growth movement of plants in response to touch stimulus, e.g., Sweet Pea
(a) Movement of parts of plant towards source of stimulus is positive and away from source of stimulus is negative.
(b) (b) Inside Scrotum
(b) Between malleus and stapes.
(b) In the stroma (matrix) of chloroplast
(b) Cavity between amnion and embryo
(b) Between two cerebral hemispheres.

#2-a-i
Label the parts 1 and 2.
Ans : 1 - Radicle 2 - Plumule

#2-a-ii
Name the tropic movement shown by part 1.
Ans : Hydrotropism

#2-a-iii
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
Ans : Gravity and Water - Water is stronger.

#2-a-iv
What is Thigmotropism ? Give one example.
Ans : Growth movement of plants in response to touch stimulus, e.g., Sweet Pea

#2-a-v
What is meant by ‘Positive’ and ‘Negative’ tropic movements in plants?
Ans : Movement of parts of plant towards source of stimulus is positive and away from source of stimulus is negative.

#2-b
Mention the exact location of the following :
[5]

#2-b-i
Testis
Ans : Inside Scrotum

#2-b-ii
Incus
Ans : Between malleus and stapes.

#2-b-iii
Thylakoids
Ans : In the stroma (matrix) of chloroplast

#2-b-iv
Amniotic fluid
Ans : Cavity between amnion and embryo

#2-b-v
Corpus callosum
Ans : Between two cerebral hemispheres.