Plants create energy by metabolizing nutrients absorbed from the environment. Fungi are decomposes, metabolizing by taking nutrients from something else such as another plant. Plants use the energy they create to grow and produce seeds and spores, similar to fungi who produce spores as well. As for their overall structures, plants contain chlorophyll within their cells while fungi do not. The cell wall of fungi is composed of chitin, glucans, and protein while plants cell walls are typically made of cellulose, agar, hemicellulose, and pectin.