When animals die, muscles stiffen in rigor mortis because
1. actin and myosin cannot bind without ATP.
2. actin and myosin cannot separate without ATP.
3. ATP forms cross-bridges between filaments.
Solution
Answer : The correct answer is 2 (actin and myosin cannot separate without ATP).Explanation :
After the death, ATP synthesis stops as breathing stops. However, so the crossbridges cannot
detach from actin. The resulting condition, in which muscles are in a state of rigidity( cannot
contract or stretch) is called rigor mortis..
When animals die, muscles stiffen in rigor mortis because1. actin .pdf
1. When animals die, muscles stiffen in rigor mortis because
1. actin and myosin cannot bind without ATP.
2. actin and myosin cannot separate without ATP.
3. ATP forms cross-bridges between filaments.
Solution
Answer : The correct answer is 2 (actin and myosin cannot separate without ATP).Explanation :
After the death, ATP synthesis stops as breathing stops. However, so the crossbridges cannot
detach from actin. The resulting condition, in which muscles are in a state of rigidity( cannot
contract or stretch) is called rigor mortis.
