Yes, grass contains cellulose. How can we know that it really contains???? Eat the grass you can't digest the grass. This is the prove.

Grass is rich in cellulose, a special kind of carbohydrate that can only be digested by ruminants such as cows, goats, and sheep.

What is cellulose?

Cellulose is a complex carbohydrate that is found in the cell walls of plants. It is the most abundant organic compound on Earth and is an important structural component of plants.

Why can only ruminants digest cellulose?

Cellulose is a type of fiber that is difficult to break down, and humans and other non-ruminant animals lack the necessary enzymes to digest it. Ruminants, on the other hand, have a specialized digestive system that allows them to break down cellulose and extract nutrients from it.

How do ruminants digest cellulose?

Ruminants have a four-chambered stomach that allows them to ferment and digest cellulose. When a ruminant eats grass, it is first chewed and mixed with saliva in the mouth. The partially chewed food, called a bolus, is then swallowed and enters the first chamber of the stomach, called the rumen.

In the rumen, bacteria and other microorganisms break down the cellulose in the grass through a process called fermentation. The rumen is a warm, moist environment that provides ideal conditions for these microorganisms to thrive. As the cellulose is broken down, gases such as methane and carbon dioxide are produced, which are belched up by the ruminant.

Once the cellulose has been fermented in the rumen, it passes into the second chamber of the stomach, called the reticulum. Here, the partially digested food is formed into small balls called cud, which the ruminant regurgitates and chews thoroughly before swallowing again.

The cud then enters the third and fourth chambers of the stomach, called the omasum and abomasum, respectively. In these chambers, the remaining nutrients are extracted from the grass and absorbed into the bloodstream.

Conclusion

In conclusion, grass is rich in cellulose, a type of fiber that can only be digested by ruminants such as cows, goats, and sheep. These animals have a specialized digestive system that allows them to ferment and break down cellulose, extracting nutrients from the grass and converting it into food and energy.