First slide
Long Distance Transport of Water
Question

Choose the components of a flowering plant directly involved in translocation of substances.
A. Vessels 
B. Tracheids 
C. Companion cells 
D. Sieve tubes

Moderate
Solution

Translocation takes place through conduits of plant which are tracheids and vessels of xylem and sieve tubes of phloem. Companion cells dump the organic solutes into the sieve tubes which is short distance transport and not translocation. 

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