The organelle shown below is found in all cells but is most numerous in cells requiring a large amount of energy (e.g., liver cells) . What is the name of this organelle? 
Definitions:
Required Reserve Ratio
The minimum fraction of deposits banks are required by law to keep as reserves, either in their vaults or on deposit at a central bank.
Term Auction Facility
A monetary policy tool used by the Federal Reserve to provide short-term loans to banks, aiming to improve liquidity and stability in financial markets.
Bank Insolvency
A situation where a bank's liabilities exceed its assets, making it unable to meet its obligations and continue its operations.
Excess Reserves
Banks' reserves that exceed the minimum requirement set by a central bank, not lent out and often kept for emergency purposes.
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