ATP's Role in Cellular Energy

Steps:

• Identify the statements: Assume 1 is incorrect (e.g., ATP as permanent energy), 2 is correct (e.g., ATP hydrolysis releases energy), 3 is incorrect (e.g., ATP synthesis without input).
• Evaluate each: Statement 1 fails as ATP is transient; statement 2 holds via ΔG = -30.5 kJ/mol; statement 3 ignores endergonic nature.
• Match to options: Only 2 aligns with D.
• Confirm: Biology texts verify ATP's energy transfer function.

Why D is correct:

• ATP hydrolysis (ATP → ADP + Pi) releases energy per the standard free energy change (ΔG°' = -30.5 kJ/mol), making statement 2 accurate.

Why the others are wrong:

• A includes incorrect 1 and 3.
• B selects only wrong 1.
• C includes wrong 3 with correct 2.

Not enough information on exact statements, but D fits standard ATP facts.

Final answer: D