The correct answer is (d) Cellulose.
Cellulose is the most abundant organic compound in the biosphere, making up about 33% of all plant matter. It is a long-chain polysaccharide composed of glucose units. Cellulose is the main structural component of plant cell walls, and it is also found in some algae and bacteria.
Glucose is a simple sugar that is found in the blood and is used by the body for energy. It is also a component of many carbohydrates, such as starch and cellulose.
Fructose is a simple sugar that is found in fruits and honey. It is also a component of sucrose, which is table sugar.
Sucrose is a disaccharide composed of glucose and fructose units. It is the most common type of sugar found in food.
In conclusion, cellulose is the most abundant organic compound in the biosphere. It is a long-chain polysaccharide composed of glucose units. Cellulose is the main structural component of plant cell walls, and it is also found in some algae and bacteria.