Define the following terms:
$(1)$ Ascent of sap
$(2)$ Phloem transport
$(1)$ Ascent of sap
$(2)$ Phloem transport
(N/A) $(1)$ The upward movement of water and dissolved mineral salts,absorbed by the root system,through the xylem tissue towards the stem and leaves against the force of gravity is called ascent of sap.
$(2)$ The transport of food (sucrose) prepared by photosynthesis from the leaves (source) to other parts of the plant,including the roots (sink),through the phloem tissue is called phloem transport.
$(2)$ The transport of food (sucrose) prepared by photosynthesis from the leaves (source) to other parts of the plant,including the roots (sink),through the phloem tissue is called phloem transport.
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Choose the incorrect sentences:
$(1)$ The apoplastic movement of water occurs exclusively through the intercellular spaces and the walls of the cells.
$(2)$ The symplastic system is the system of interconnected protoplasts.
$(3)$ Casparian strips are present in the apoplast pathway.
$(4)$ Transport of water is slow in the symplast compared to the apoplast.
$(1)$ The apoplastic movement of water occurs exclusively through the intercellular spaces and the walls of the cells.
$(2)$ The symplastic system is the system of interconnected protoplasts.
$(3)$ Casparian strips are present in the apoplast pathway.
$(4)$ Transport of water is slow in the symplast compared to the apoplast.
Medium
View Solution$A-$ Diffusion is a very slow process and is responsible for the short-distance movement of molecules.
$R-$ Water,minerals,and food are generally moved by a mass or bulk flow system.
$R-$ Water,minerals,and food are generally moved by a mass or bulk flow system.
Medium
View SolutionSelect the correct option from the following.
Easy
View SolutionThe presence of dew on the surface of leaves is due to
Easy
View SolutionAnalogy type questions:
$(1)$ Stomata : Transpiration :: Hydathode : ..........
$(2)$ Phloem : Translocation of sugars :: Xylem : ..........
$(1)$ Stomata : Transpiration :: Hydathode : ..........
$(2)$ Phloem : Translocation of sugars :: Xylem : ..........
Medium
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