a
Tannins
b
Oxygen
c
Carbondioxide
d
Sap
e
Alkaloids
Explanation
Correct Option
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Discussions (20)

Greatness330
2 years ago
sap is a transport system, not a waste product excessive carbon dioxide is excreted by the plant

peter samson
9 years ago
cell sap is a medium of transportation in higher plant and carbon(iv)oxide is used up by plant during respiration..so please review this @myschool

mathemagic
9 years ago
DDDDD
carbon dioxide
Plants need to excrete excess carbon dioxide and oxygen. Carbon dioxide is a waste product of aerobic respiration in plant cells. Oxygen is a waste product of photosynthesis.

[DCOR]
11 years ago
Please guys, do not be confused..In the presence of excess Oxygen, the plants also respirate..Taking in Oxygen and releasing carbondioxide as waste product.





