No.
Well, I'm not sure there is a really a "problem" with cellulose, but if you're talking about ingestion and digestion, it really depends on what animal you're talking about. Cellulose is a structural polysaccharide (sugar) that is found in the cell walls of plants. It contains beta 1-4 glycosidic linkages between glucose molecules that cannot be broken in the digestive tract of most animals. However, ruminant animals (cows, goats, sheep) have microorganisms in their gut that can break cellulose down using the enzyme cellulase and the cellulose can then be utilized by the animal. So, for most animals, cellulose cannot be broken down and used.
All animals obtain carbohydrates the same way we do, by eating plants: grain, roots and tubers, leaves, fruits, nuts.Except they don't turn them into bread and pie and french fries.
Humans are unable to get metabolic energy from cellulose because they lack the enzymes necessary to chemically break it down. Since the human body can't properly digest cellulose, it's passed in the feces.
Cellulose is an insoluble carbohydrate found in plants and plant products. It is the main structural component of plant cell walls and provides structural support to plants. Unlike soluble carbohydrates, such as starch, cellulose cannot be broken down by human digestive enzymes.
Animals store nutrients in different ways, primarily in the form of glycogen in muscles and liver, and as fat in adipose tissue. Nutrients such as vitamins and minerals are stored in various tissues and organs for future use. Additionally, some animals have specialized adaptations for storing nutrients, such as camels storing fat in their humps for energy.
Starch and cellulose.
starch & cellulose
Plants store carbohydrates as sugars and starches...cellulose is also a complex structural sugar. Animals store glycogen (a type of complexed sugar) in the liver and muscles for fast energy and convert excess carbohydrate to fat.
photosynthesis
Carbohydrates
Carbohydrates are a broad category of organic compounds that serve as a major source of energy for living organisms. Cellulose is a specific type of carbohydrate that provides structural support to plants and is not easily digestible by most animals due to its complex structure.
Plants store the food in the form of starch, glucose and cellulose ...
Cellulose.
Carbohydrates that are polymers include starch, cellulose and glycogen.
Animals store carbohydrates as glycogen in their liver and muscles. Glycogen is a complex molecule made up of many glucose units linked together, which can be broken down into glucose when needed for energy.
cellulose
Insects store carbohydrates as starch. Other animals and plants do the same thing since the starch can become different kinds of saccharides.