They are various forms of sugars.
They are all carbohydrates and they are all related to photosynthesis.Both are glucose polymers.
Starch
They are both polysaccharides composed of glucose monomers.
starch is an alpha-glucose, Cellulose is a beta-glucose molecule
The first catabolite produced from the catabolism of starch and cellulose is glucose. Both starch and cellulose are polysaccharides composed of glucose monomers, and they are broken down by enzymes like amylase (for starch) and cellulase (for cellulose) into glucose units. This glucose can then be further metabolized for energy or converted into other compounds.
The monomer unit of polysacharides such as starch and cellulose is glucose.
Cellulose can be separated from a mixture of glucose, starch, and cellulose through a process called filtration. Cellulose is insoluble in water, while glucose and starch are soluble. By mixing the mixture with water and filtering it, the cellulose will be left behind on the filter paper, while the glucose and starch pass through as a solution.
Glucose makes maltose, starch and cellulose.
Starch and cellulose are both polysaccharides therefore made up of mono-saccharides such as glucose. There is more information at the related link.
Starch and cellulose are both polysaccharides composed of glucose units, but they differ significantly in structure and function. A common misconception is that they are interchangeable; however, starch is primarily used for energy storage in plants, while cellulose serves as a structural component in plant cell walls. Additionally, starch consists of alpha-glucose units, making it digestible by humans, whereas cellulose is made of beta-glucose units, which humans cannot digest.
If by 2 polysaccharides you mean any two, then some of the common examples would be cellulose, peptidoglycan, starch (amylose and amylopectin), hemicellulose, chitin, glycogen ........... the list is almost endless.
They are all polysaccharides made of glucose monomers.