Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question

Question

The sliding filament model of muscle contraction describes the interaction between:
Options
A Actin and myosin filaments
Correct Answer
B Troponin and tropomyosin
C Sarcolemma and sarcoplasmic reticulum
D T-tubules and mitochondria
Correct Answer

Option A is the correct answer.

Detailed Explanation

The sliding filament model describes how actin (thin) filaments slide inward over myosin (thick) filaments, shortening the sarcomere without changing filament length.

Hint

Cross-bridges form between these two filament types.

Question Info