Lactic Acid, Shown Below, Is Produced by Muscle Exercise and Can

question 77

Multiple Choice

Lactic acid, shown below, is produced by muscle exercise and can also be found in sour milk. Which of the following statements is true?

• A) The racemic lactic acid produced by muscle exercise is identical to that found in sour milk.
• B) The (−)-enantiomer is produced by muscle exercise and is also found in sour milk.
• C) The (+)-enantiomer is produced by muscle exercise and is also found in sour milk.
• D) Lactic acid produced by muscle exercise is the (+)-enantiomer, but that found in sour milk is the (−)-enantiomer.

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Definitions:

Liability Account

An accounting record that captures the amounts owed by a business to others, representing its debts or obligations.

Double-Entry System

An accounting system that records each transaction twice, as debits in one account and credits in another, to ensure the accounting equation remains balanced.

Accounting Equation

The fundamental equation stating that Assets = Liabilities + Equity, which is the basis of the double-entry bookkeeping system.

Accounts Payable

Liabilities of a business that are owed to creditors for goods and services purchased on credit but not yet paid.