Analogy type questions:
$(1)$ Stomata : Transpiration :: Hydathode : ..........
$(2)$ Phloem : Translocation of sugars :: Xylem : ..........
$(1)$ Stomata : Transpiration :: Hydathode : ..........
$(2)$ Phloem : Translocation of sugars :: Xylem : ..........
(A) $(1)$ Guttation
$(2)$ Water and minerals
Explanation:
$(1)$ Stomata are the sites for transpiration (loss of water vapor). Similarly,hydathodes are the specialized pores through which guttation (loss of water in liquid form) occurs.
$(2)$ Phloem is responsible for the translocation of sugars (food) from source to sink. Xylem is responsible for the transport of water and dissolved minerals from roots to other parts of the plant.
$(2)$ Water and minerals
Explanation:
$(1)$ Stomata are the sites for transpiration (loss of water vapor). Similarly,hydathodes are the specialized pores through which guttation (loss of water in liquid form) occurs.
$(2)$ Phloem is responsible for the translocation of sugars (food) from source to sink. Xylem is responsible for the transport of water and dissolved minerals from roots to other parts of the plant.
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$A.$ Most researchers agree that water is mainly 'pulled' upward through the plant, where transpiration is the driving force.
$B.$ Less than one percent of water reaching the leaves is used in plant growth and photosynthesis.
$C.$ Cobalt chloride paper turns blue on absorbing water.
$B.$ Less than one percent of water reaching the leaves is used in plant growth and photosynthesis.
$C.$ Cobalt chloride paper turns blue on absorbing water.
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View SolutionChoose the correct option:
$(1)$ The transport in xylem is always $unidirectional$.
$(2)$ The process of loss of water in the form of vapour by plants is called $transpiration$.
$(1)$ The transport in xylem is always $unidirectional$.
$(2)$ The process of loss of water in the form of vapour by plants is called $transpiration$.
Easy
View SolutionMatch the following:
Column-$I$ Column-$II$ $(P)$ Active absorption $(1)$ Loss of water $(Q)$ Osmotic pressure $(2)$ Plasmolysis $(R)$ Stomata $(3)$ Minerals $(4)$ Solute concentration
| Column-$I$ | Column-$II$ |
|---|---|
| $(P)$ Active absorption | $(1)$ Loss of water |
| $(Q)$ Osmotic pressure | $(2)$ Plasmolysis |
| $(R)$ Stomata | $(3)$ Minerals |
| $(4)$ Solute concentration |
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View SolutionWhich of the following is mismatched regarding the properties of water and their biological significance?
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View SolutionAfter heavy rainfall with poor drainage,leaves of many plants wilt due to
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