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Sucrose H Description Apoplastic Loading Phloem Sieve Tubes 

Apoplastic loading of sucrose into phloem sieve tubes involves active transport where H+ ions are pumped out, creating a gradient. Sucrose then moves back in via co-transport proteins, utilizing this H+ gradient.

Apoplastic loading of sucrose into phloem sieve tubes involves active transport where H+ ions are pumped out, creating a gradient. Sucrose then moves back in via co-transport proteins, utilizing this H+ gradient.

Front description of apoplastic loading of sucrose into phloem sieve tubes 
Back active transport, H+ ions out by proton pumps (ATP hydrolysis) creates gradient, H+ ions diffuse back via co-transport protein that requires sucrose movement 

Tags: 9_2_phloem_transport

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