Question

what can denature enzymes? choose all that apply. being used temperature outside of the normal range water ph outside of the normal range

Explanation:

Enzymes are proteins with specific three - dimensional structures (including the active site). Denaturation involves the disruption of this structure, which can be caused by factors that affect the weak bonds (like hydrogen bonds, ionic bonds) maintaining the structure.

• "being used": Enzymes can be reused as they are not consumed in reactions, and use does not denature them.
• "temperature outside of the normal range": High temperatures (above the optimal range) can break the weak bonds in the enzyme's structure, causing denaturation. Very low temperatures can also affect the enzyme's structure and function, though the effect might be reversible in some cases compared to high - temperature denaturation.
• "water": Water is the medium in which many enzymatic reactions occur and does not denature enzymes. In fact, enzymes need an aqueous environment for their activity in most cases.
• "pH outside of the normal range": Changes in pH can affect the ionization state of amino acid residues in the enzyme, disrupting the ionic bonds and other interactions that maintain the enzyme's structure, leading to denaturation.

Answer:

The options that apply are:

• temperature outside of the normal range
• pH outside of the normal range