Which combining form pertains to the gallbladder?

• A. Hem/o
• B. Aden/o
• C. Lip/o
• D. Chol/e

Answer: (D)

Chol/e is the combining form for bile, the digestive fluid stored in the gallbladder. Since the gallbladder’s main role is handling bile, this root best fits terms related to the gallbladder. The other roots—hem/o (blood), aden/o (gland), and lip/o (fat)—refer to different substances or structures and don’t specifically connect to the gallbladder. For example, terms built with this bile-related root appear in biliary and gallbladder contexts, such as cholecystitis, illustrating why chol/e is the appropriate choice.