Question

fill in the blanks with the correct form from the word bank below

• proteins
• enzyme
• carbohydrates
• denatured
• specific
• nucleic acid
• lipid

enzymes are ____ (choose your answer...) meaning that only one substrate will fit into the enzyme just like only a certain key will fit in a lock.

a bodybuilder would ____ (choose your answer... dropdown with denatured, specific) to help build their muscles.

to see if a person has a disease, a doctor may look at ____ (choose your answer...) which has a person’s genetics.

runners would eat ____ (choose your answer...) before a race to give them quick energy.

Explanation:

First Blank (Enzymes are ____):

Enzymes have a property called specificity, meaning they act on specific substrates (like a key - lock model where only one key fits a lock). "Denatured" refers to an enzyme losing its structure, which is not what this description is about. So the correct word is "specific".

Proteins are essential for muscle building as they are the building blocks of muscles. Among the word bank options, "proteins" (the first option in the word bank, maybe a typo as "preteins" but likely "proteins") is related to muscle building. "Enzyme" is for catalysis, "carbohydrates" for energy, "denatured" is about structure change, "specific" is about enzyme property, "nucleic acid" is for genetics, "lipid" is for energy storage. So the intended word here is likely "proteins" (assuming "preteins" is a typo for "proteins").

Nucleic acids (like DNA and RNA) carry genetic information. So to check genetics, a doctor would look at nucleic acid. The option "nucleic acid" in the word bank fits here.

Answer:

specific

Second Blank (A bodybuilder would use ____ to help build their muscles):