Short Answer 
Fungi are eukaryotic organisms characterized by chitin cell walls and heterotrophic nutrition, primarily decomposing other organisms. Their structure includes mycelium, consisting of hyphae, and fruiting bodies for reproduction. Protists are mainly unicellular, divided into plant-like organisms like algae and animal-like ones such as amoebas, using various methods for movement.
Step 1: Understanding Fungi
Fungi are a group of eukaryotic organisms characterized by their unique traits. They possess a cell wall made of chitin, a special type of polysaccharide that distinguishes them from other organisms. Fungi are also heterotrophic, meaning they obtain their nutrients by decomposing other organisms.
Step 2: Components of Fungi
The structure of fungi includes several essential components. The mycelium is the vegetative part made up of hyphae, which are filamentous structures. Some fungi, like mushrooms, have a reproductive structure called the fruiting body, which helps in the dispersal of spores for reproduction.
Step 3: Overview of Protists
Protists are primarily unicellular organisms that can be classified into two main categories based on their characteristics. The two types include plant-like protists, such as algae, which perform photosynthesis, and animal-like protists, such as amoeba that use heterotrophic nutrition. For movement, protists may utilize pseudopods or flagella, depending on the species.