Fill in the blanks: Enzymes __________ chemical reactions _________ being consumed by the reaction.

• A. Speed-up ; while
• B. Slow-down ; without
• C. Catalyze ; without
• D. Inhibit ; while

Answer: (C)

Verified step by step guidance

1. Understand the role of enzymes in biochemical reactions. Enzymes are biological catalysts that increase the rate of chemical reactions.
2. Recognize that enzymes do not get consumed in the reaction. They facilitate the reaction and remain unchanged after the reaction is complete.
3. Identify the correct terminology: 'catalyze' is the term used to describe the action of enzymes speeding up reactions.
4. Note that 'without' is the appropriate word to describe that enzymes are not consumed during the reaction.
5. Combine the correct terms to fill in the blanks: Enzymes 'catalyze' chemical reactions 'without' being consumed by the reaction.