What indicate $X, Y$ in the given diagram?

X-Cell surface membrane Y-Plasmodesma

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X-Plasmodesma Y-Tonoplast

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X-Cell surface membrane Y-Cytoplasm

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X-Plasmodesma Y-Cell surface membrane

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Solution

The correct option is A X-Cell surface membrane Y-Plasmodesma
The given diagram represents the symplastic pathway of water movement. In symplast pathway, water travels from one cell to next through plasmodesmata. The symplast consists of an entire network of cell cytoplasm which is interconnected by plasmodesmata. Hence, in the diagram, X is the cell surface membrane and Y is plasmodesmata or plasmodesma.
So, the correct answer is A.

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\begin{matrix} Parts of cell & C e l l X & C e l l Y P r e s e n t & A b s e n t & P r e s e n t & A b s e n t C e l l w a l l & \sqrt & \sqrt C y t o p l a s m & \sqrt & \sqrt N u c l e u s & \sqrt & \sqrt C e l l m e m b r a n e & \sqrt & \sqrt C h l o r o p l a s t & \sqrt & \sqrt \end{matrix}

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Question 9

What is a tonoplast?

(a) Outer membrane of mitochondria

(b) Inner membrane of chloroplast

(d) Cell membrane of a plant cell

X and Y are the two types of cells. The cells X have a well-organised nucleus which is separated from the cytoplasm by the nuclear membrane. On the other hand, cells Y do not have a real nucleus, their nuclear material is in direct contact with the cytoplasm.

(a) What type of cells are (i) X and (ii) Y
(b) Give one example each of cells like (i) X and (ii) Y?

Q. Mesosomes are the infoldings of cell membrane which
(i) are present in both prokaryotic and eukaryotic cells
(ii) help in cell wall formation, DNA replicaiton and respiration
(iii) increase the surface area of plasma membrane

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What indicate X,Y in the given diagram?

What indicate $X, Y$ in the given diagram?