Match each term with its corresponding description regarding the sliding filament theory.
-compound that supplies the energy for muscle contraction
A)Troponin
B)Myosin
C)Actin
D)T-tubules
E)ATP
F)Calcium
G)Cross-bridges
H)Tropomyosin
I)Acetylcholine

Question

Quizplus · Accepted Answer

ATP is the compound that supplies the energy for muscle contraction.

Answer: F
 In the sliding filament theory, calcium is responsible for initiating muscle contraction by binding to troponin.

Answer: B
 Myosin is the thick filament in muscle fibers that interacts with actin to create muscle contraction.

Answer: D
 T-tubules are extensions of the cell membrane that help propagate an action potential through the muscle fiber.

Answer: A and H
 Troponin and tropomyosin are proteins that regulate muscle contraction by influencing the interaction between myosin and actin.

Answer: G
 Cross-bridges are formed between myosin and actin during muscle contraction, allowing myosin to pull actin towards the center of the sarcomere.

Answer: I
 Acetylcholine is a neurotransmitter that is released from motor neurons and binds to receptors on the muscle fiber, triggering an action potential.

Match Each Term with Its Corresponding Description Regarding the Sliding