## Step 1: Identify the Reaction - The question asks for the balanced equation for the hydrolysis of cGMP (cyclic guanosine monophosphate) catalyzed by cGMP phosphodiesterase. - The left structure is cGMP, and the right structure is GMP (guanosine monophosphate). **Explanation:** Hydrolysis reactions require water as a reactant to break a bond. Here, the cyclic phosphate group in cGMP is hydrolyzed to form a linear phosphate group in GMP. --- ## Step 2: Add the Missing Reactant - The missing reactant is **water (H₂O)**, which participates in the hydrolysis. **Explanation:** The complete balanced equation for the enzymatic hydrolysis is: **cGMP + H₂O → GMP** This represents the breakdown of cyclic GMP into GMP, with water being consumed in the process. --- ## Final Answer **Balanced equation:** **cGMP + H₂O → GMP** - Add H₂O as a reactant to the left side of your diagram to make the equation correct.

# Hydrolysis of cGMP by cGMP Phosphodiesterase ## Step 1: Identify the Reaction - The reaction involves the hydrolysis of cGMP (cyclic guanosine monophosphate) to GMP (guanosine monophosphate). - The structure of cGMP contains a cyclic phosphate group. **Explanation:** Hydrolysis requires water to break the cyclic bond in cGMP, transforming it into GMP, which has a linear phosphate group. --- ## Step 2: Add the Missing Reactant - The reactant needed for this hydrolysis is **water (H₂O)**. **Explanation:** The balanced equation for the hydrolysis reaction is: \[ \text{cGMP} + \text{H}_2\text{O} \rightarrow \text{GMP} \] This indicates that cGMP reacts with water to produce GMP. --- ## Final Answer **Balanced equation:** \[ \text{cGMP} + \text{H}_2\text{O} \rightarrow \text{GMP} \] - Ensure to include H₂O on the left side of your diagram to complete the reaction.