Read the passage: "Photosynthesis is the process by which green plants convert sunlight into chemical energy. This energy is stored in glucose molecules, which serve as fuel for the plant's metabolic activities." According to the passage, what do glucose molecules do?
-
A
They convert sunlight into heat energy
-
B
They serve as fuel for the plant's metabolic activities
-
C
They produce oxygen as a byproduct
-
D
They absorb carbon dioxide from the atmosphere