Question

question 13
the enzyme beta - galactosidase works best at 37°c. under optimal conditions, the enzyme beta - galactosidase looks like this:
which of the following images best represents what beta - galactosidase looks like at 90°c
image a
image c
image b
question 14
an enzyme molecule can be reused over and over. it does not get used up or changed when it helps a reaction happen.
true
false

Explanation:

For Question 13, enzymes are proteins and high - temperatures like 90°C cause denaturation, which disrupts the enzyme's 3 - D structure. Image c shows a completely disrupted structure, which is consistent with denaturation. For Question 14, enzymes are biological catalysts that can be reused in reactions without being consumed or chemically changed.

Answer:

Question 13: B. image c
Question 14: True