The tropic movement that helps the climbing vines to find a suitable support is ________. 

(a)

phototropism

(b)

geotropism

(c)

thigmotropism

(d)

chemotropism

The chemical reaction occurs during photosynthesis is ________. 

(a)

CO₂ is reduced and water is oxidized

(b)

water is reduced and CO₂ is oxidized

(c)

both CO₂ and water are oxidized

(d)

both CO₂ and water are produced

Transpiration is best defined as _________ 

(a)

loss of water by the plant

(b)

evaporation of water from the aerial surfaces from the plant

(c)

loss of water in the form of water vapour from the underground parts of the plant body

(d)

release of water from the plant into the atmosphere

The non-directional movement of a plant part in response to temperature is called ________.

(a)

thermotropism

(b)

Thermonasty

(c)

chemotropism

(d)

thigmonasty

Chlorophyll in a leaf is required for __________.

(a)

photosynthesis

(b)

transpiration

(c)

tropic movement

(d)

nastic movement

__________ is positively hydrotropic as well as positively geotropic.

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Root

Hydrotropism : Response towards water Phototropism : ___________

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response towards sunlight

Photosynthesis : ____________ Transpiration : Stomata

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When the leaves of a sensitive plant are touched with a finger, they fold up and when light fades at dusk the petals of a Dandelion flower close. These two plants show ____ and_____ movements.

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Thigmonasty ; Photonasty

The raw materials for photosynthesis are _________ and _______.

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CO₂, H₂O and Chlorophyll & Light

When the leaves of Mimosa pudica plant are touched with the finger, they fold up quickly. This is an example of thigmonasty.

(a) True

(b) False

The petals of moon flower open up in morning and closes in the evening. This is called photonasty.

(a) True

(b) False

Plants lose water when the stomata on leaves are closed.

(a) True

(b) False

Give an example for a plant whose leaf shows a mesmerizing movement.

Write the scientific terms used to represent the following:
a) Growing of roots towards the gravity.
b) Bending of roots towards the water.

Observe the given picture.
a) Identify this plant. What type of special movement is shown by this plant?
b) What are the other movements seen in this plant?

What is the end product of photosynthesis?

Name the minute openings seen on the lower surface of the leaf.

Give the technical terms for the following:
a) Growth dependent movement in plants.
b) Growth independent movement in plants.

Study the pictures below and then complete the table by putting a plus (+) if the shoot or root grows towards the stimulus and a minus (-) if it grows away from it.

Stimulus	Light	Gravity
Shoot	+	-
Root	?	+

Name the movement seen in Pneumatophores of Avicennia

What is the other name for thigmonasty?

Which flowering plant shows photonasty just opposite to that of Dandelion?

Give an example for negative hydrotropism.

Fill in the blanks:
6CO₂+________\(\overset { Sunlight }{ \underset { Chlorophyll }{ \longrightarrow } } \) _____ +6H₂O+6O₂ \(\uparrow\)

Which gas is evolved during photosynthesis?

What is chlorophyll?

Give an example for micronutrients.

Design an experiment to demonstrate hydrotropism.