gum

Gum is a sticky substance that is produced by some plants. It is used to protect the plant from predators and to help the plant attach to surfaces.

Gum is made up of a mixture of chemicals, including resins, sugars, and water. The resins give gum its sticky properties, while the sugars and water make it soft and chewy.

Gum is a natural product, but it can also be made synthetically. Synthetic gum is often made from a substance called gum arabic, which is a natural gum that comes from the sap of acacia trees.

The tree sap is a sticky gum.