By protoplasmic streaming theory, how sugar is translocated from one sieve tube to other?

Diffusion

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Osmosis

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Absorption

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Active transport

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Solution

The correct option is D Diffusion
Hugo de Vries and Curtis proposed cytoplasmic streaming theory; according to this theory, translocation occurs through streaming movements of protoplasm in sieve tubes. During streaming movement sugar is transported through diffusion from region of higher concentration to region of lower concentration.

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