Answer:
a) Anabolic pathways
Explanation:
The metabolic pathways that form complex biomolecules from simpler elements are called anabolic pathways. Anabolic pathways are mostly endergonic, that is, they require an input of energy.
For example, the synthesis of glucose (C6H12O6) from simpler CO2 and H2O in the presence of sunlight during photosynthesis. Here, complex glucose molecules are formed from simpler elements such as carbon dioxide and water. Sunlight serves as a source of energy for photosynthesis.
