Phloem

Phloem

moves food in many directions needs energy

Translocation

force that moves food source to sink

Sieve-Tube Element

main tubes that carry sugar sap.

Sieve Plate

– tiny holes at the ends of sieve-tubes so sap can flow through.

Companion Cell

“helper” cell that keeps the sieve-tube alive and working.

Parenchyma Cell

– storage and support cells.

Plasmodesmata

small “bridges” or connections between cells for sharing nutrients

Transfer Cell

– helper cell with extra wall surface to move nutrients faster

Bundle Sheath Cell

cells that wrap around the vein, controlling what goes in/out.

Source

releases sucrose or amino acids

Sinks

receives sucrose/amino acids