What macromolecules are found in celery?

The macromolecule found in celery would be carbohydrates. All plants contains cellulose which is under the category of carbohydrates. Cellulose is a very important polysaccharide because it is the most abundant organic compound on earth. Cellulose is a major component of tough cell walls that surround plant cells, and is what makes plant stems, leaves, and branches so strong.