Final answer:
Chemosynthetic organisms do make monosaccharides from inorganic materials in their environment through chemosynthesis.
Step-by-step explanation:
Photosynthetic and chemoautotrophs are both types of autotrophs, which are organisms capable of synthesizing their own food. Photosynthetic autotrophs use sunlight as an energy source, while chemoautotrophs use inorganic molecules as an energy source through a process called chemosynthesis. Chemosynthetic organisms do make monosaccharides from inorganic materials in their environment. They use the energy stored in chemical bonds to convert inorganic substances into organic molecules, such as monosaccharides.