AP Biology Quiz
20 questions · no time limit
0:00
CELLULAR ENERGETICS
Question 1 of 20
No time limit
Current
Answered
Flagged
Not seen
Lactase catalyzes lactose hydrolysis in a lab assay at 30°C. In 0.1 M NaCl, the rate is 12 µmol glucose/min; in 1.0 M NaCl, the rate is 3 µmol glucose/min with the same enzyme and substrate concentrations. High ionic strength can alter electrostatic interactions among charged amino acids that help maintain tertiary structure near the active site. Which explanation best accounts for the lower rate at 1.0 M NaCl?
YOUR PROGRESS
20
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCDE
Next question ↵→
Previous ←
Flag for review F
Answers save as you go · flagged questions come back at the end