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Question

Read the given statements regarding a cell organelle.
(i) It contains water, sap, excretory products and other unwanted materials
(ii) It is bounded by a single membrane called tonoplast
(iii) In plant cells, it can occupy upto 90% of cellular volume
(iv) Its contents form cell sap
(v) it maintains turgor pressure
The above features are attributed to

A
lysosome
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B
vacuole
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C
peroxisome
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D
mitochondrion
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Solution

The correct option is B vacuole
Sap vacuoles are fluid-filled vacuoles or vesicles which are separated from the cytoplasm by a selectively permeable membrane called tonoplast. The number of small sap vacuoles occurs in animal cells and young plant cells. In mature plant cells, small vacuoles fuse to form a single large central vacuole. The fluid present in the sap vacuoles is often called cell sap or vacuolar sap. It contains minerals, sugars, oxygen, carbon dioxide, soluble pigments, and organic acids. The pigments include anthocyanins (red, purple, blue) and anthoxanthins (ivory to deep yellow).
So, the correct answer is 'vacuole'.

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