Protoplasm. 



39 



FIG. 5. -CHLOROPHYLL GRANULES IN CEILS 

 OF LEAF OF Funaria hygrometrica (X5;o). 

 (Sachs.) 



protoplasmic residue, or vehicle, remaining after the re- 

 moval of the chlorophyll, is apparently not diminished in 

 amount, but has a vacuolated or frothy appearance. 



Chlorophyll bodies 

 grow and multiply like 

 cells, though, of course, 

 they are not to be con- 

 sidered as cells morpho- 

 logically. The growth 

 and multiplication are 

 due entirely to the ac- 

 tivity of the protoplas- 

 mic vehicle. The chlo- 

 rophyll bodies, of which 

 there are usually a large 

 number in each cell, are 

 formed from the general 

 protoplasm by a process 

 of differentiation. In 

 the chlorophyll bodies 

 themselves secondary 

 products of metabolism 

 are often found. The 

 most common of these 

 is starch, which is pre- 

 sent at first in small 

 quantity, in the form of 

 minute granules, but 

 afterwards increases in 

 amount until the whole 

 chlorophyll body be- 

 comes transformed intO A) S ran ^les of chlorophyll, with contained starch 



grains imbedded in the protoplasm of the 



a maSS Of Starch. Drop- cells; B. separated chlorophyll granules con- 



, ,. ., , taining starch ; a. b. young granules ; b' ', //', 



iCtS Of Oil and Other chlorophyll granules du iding ; c, d, e, old 



L , i chlorophyll granules ; / granule swollen 



Substances are also not up by action ,of water ; >, starch granules 



remaining after chlorophyll has been 

 in destroyed by action of water. 



