EXERCISE 15 

 ABSORPTION BY A ROOT 



Materials. Large carrot, beet, or other large root ; one-hole rubber 

 stopper ; glass tube ; carpenter's auger. 



Directions for work. With the auger bore a hole into the 

 upper end of the root, nearly fill the hole with sugar, and 

 insert the stopper. Place the glass tube in the hole in the 

 stopper. Tie the stopper in with copper wire. 



Set the root in water and observe hourly for several days, 

 noting the height of the liquid in the tube. 



What are your conclusions regarding absorption by roots? 



i 

 References 



BERGEN and CALDWELL. Practical Botany, pp. 6-11, 79, 80. 

 BERGEN and CALDWELL. Introduction to Botany, pp. 9, 10, 41, 42. 



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