8 
STUDIES OF PLANT LIFE. 
B. Life Problems. 
1. 
2. 
Where are the molds found? 
Explain the origin of the mold plant on foods. 
What is its food and how does it take it? 
Experiments 5, 10, and 8. 
Why does mold grow on bread and on fruit? 
What conditions are necessary for its growth? 
Why does it not have chlorophyl? 
Why is the mold always on the surface portions of 
fruits preserved in liquids? 
Why is it that mold will not grow on clean, moist 
sand or in pure water? 
What is the purpose of the sub-stratum hyphz? 
Of what advantage is the horizontal position of most 
of the aerial hyphe ? 
