Final answer:
The statement that anabolic activities yield new tissues is true. Anabolic pathways build complex molecules like bone and muscle mass from simpler ones, using energy from ATP. The correct option is A.
Step-by-step explanation:
The statement that anabolic activities yield new tissues is true. Anabolic pathways are crucial in the biological systems for synthesizing new complex molecules from simpler ones.
These pathways are fundamentally biosynthetic reactions that utilise energy, normally from adenosine triphosphate (ATP), to build new tissues such as bone, muscle mass, and various types of biomolecules like proteins, nucleic acids, and fats.
Contrary to catabolic processes, which break down molecules to release energy, anabolic processes use energy to create new cellular components and tissues.
For instance, in the context of physical exercise, while catabolic processes may break down compounds like cellulose into simpler compounds for energy release, anabolic pathways then use the simpler compounds for the repair and growth of muscle tissue. Option A. is the correct one.