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Passage cells are thin-walled cells found in:

Phloem elements that serve as entry points for substances for transport to other plant parts
Endodermis of roots facilitating rapid transport of water from cortex to pericycle
Central region of style through which the pollen tube grows towards the ovary
Testa of seeds to enable emergence of growing embryonic axis during seed germination
Additional Questions

When a plant is girdled (ringed)

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In a plant organ, which is covered by periderm and the stomata are absent, some gaseous exchange still takes place through

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The relationship among different types of soil water can be summed up by the following equation:

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Water will be absorbed by root hair when

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Select the correct events leading to the opening of the stomata

a. Decline in guard cell solutes

b. Lowering of osmotic potential of guard cells

c. Rise in potassium levels in guard cells

d. Movement of water from neighbouring cells into guard cells

e. Guard cells becoming flaccid

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Water is lost in a liquid state in some plants through hydathodes. These hydathodes

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Passive absorption of water by the root system is the result of

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Study the following table:

(I) Peperomia - Leaf succulent - Leaf epidermal cells store water

(II) Calotropis - Non-succulent - Root cells with thickened cell walls

(III) Tribulus - Ephemeral - Stem stores water

(IV) Ammophila - Dicot plant - Rolling in of leaves to check water loss

Identify the correct pair of answers.

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In which of the following plants, there will be no transpiration?

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A leaf peeling of Tradescantia is kept in a medium having 10% NaCl. After a few minutes if we observe the leaf peel under the microscope, we are likely to see

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