Class 11 · Cell: The Unit of Life

Tonoplast & Vacuolar Ion Transport — NEET Biology

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In plants, the tonoplast facilitates the transport of a number of ions and other materials against concentration gradients into the vacuole, hence their concentration is significantly higher in the vacuole than in the cytoplasm.

NCERT Biology · Class 11 · Chapter 8 · Paragraph 53
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Adjacent to a frequently-asked paragraph in the same chapter.

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A unicellular Amoeba uses its contractile vacuole to regulate water, while a multicellular plant cell depends on the tonoplast. Which unified principle of biology explains this?

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