Yes
Valves in general control the flow of something. They serve as regulators.
amylase lactase pepsin
Metabolites are small molecules that are intermediate or end products of metabolism in living organisms. They play essential roles in biochemical pathways, such as energy production, growth, and maintaining cellular functions. Metabolites can serve as indicators of an organism's physiological state and are often used in metabolomics studies to understand biological processes.
Carbon dioxide and water are the two molecules that serve as starting materials for glucose synthesis.
Carbohydrates
No, starches are not fat molecules; they are complex carbohydrates made up of long chains of glucose units. Fats, on the other hand, are composed of fatty acids and glycerol. While both starches and fats serve as energy sources for the body, they have different structures and functions in metabolism. Starches provide quick energy, while fats are more energy-dense and serve as long-term energy storage.
it is a state
They are called enzymes. They aren't necessarily considered molecules, but I suppose they are, perhaps very large ones. These enzymes act as a catalyst to speed the decompositions along. Stomach acid helps by oxidising the food as well as creating the environment for the proteins to function.
enzymes
Globular proteins act as enzymes and catalyze organic reactions. They also transmit messages to regulate biological processes. Globular Proteins transport molecules through the membrane, and act as regulators within the membrane.
Biotin
enzymes