Question

question 9 (2 points)
listen
in our enzyme lab, we observed the effects of what enzyme?
catalase
carboxylase
lactase
helicase
question 10 (2 points)
listen
your red blood cells float around in a liquid called blood plasma. the blood plasma must be isotonic to the interior of your red blood cells or they will not function properly.
true
false

Explanation:

Question 9

In typical enzyme labs, catalase is commonly studied (it breaks down hydrogen peroxide). Carboxylase is for carboxylation, lactase breaks lactose (less common in basic enzyme labs), helicase is for DNA unwinding (not typical in basic enzyme labs focused on common enzyme effects). So the correct enzyme observed is catalase.

Isotonic solutions have equal solute concentrations, so blood plasma (isotonic to red blood cell interior) prevents osmotic damage (like bursting or shrinking), ensuring red blood cells function. So the statement is true.

Answer:

A. catalase

Question 10