AP Biology Quiz
20 questions · no time limit
0:00
CHEMISTRY OF LIFE
Question 1 of 20
No time limit
Current
Answered
Flagged
Not seen
A nucleotide triphosphate contains a nitrogenous base (N), a sugar (C, H, O), and three phosphate groups (P and O). Each phosphate group includes multiple oxygen atoms that carry negative charge at cellular pH, so the triphosphate region has strong electrostatic repulsion within the molecule and interacts strongly with water and cations. In contrast, the sugar and base region is less negatively charged. When a bond between two phosphates is broken, the products have reduced electrostatic repulsion compared with the reactant. Which molecular property best explains why the triphosphate region is relatively unstable?
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