Key Stage 3 (KS3) Energy Test 2025 – 400 Free Practice Questions to Pass the Exam

Food biomass primarily consists of organic matter derived from plants, such as fruits, vegetables, grains, and legumes. These plants are produced through photosynthesis, a process that converts sunlight into energy, which is stored in their tissues. Thus, food biomass represents a significant source of energy and nutrients for various organisms, including humans.

In contrast, wood biomass generally refers to materials sourced from trees and other woody plants, which are primarily used for construction and fuel. While both food and wood biomass are vital components of ecosystems and can be utilized for energy, their sources and typical applications differ. In the context of this question, the idea that food biomass comes from plants is a fundamental concept that highlights the primary nature of its source compared to other types of biomass.