Match the following and mark the correct option

Options:



A. Fast muscle fibres ii. Lactic acid


The lactic acid is produced in the fast muscle fibres due to the larger exercise-induced loss of K+ ions as compared to slow muscle fibres.


B. Slow muscle fibres i. Myoglobin


Slow muscles fibres have a higher rate of myoglobin concentration as compared to the fast muscle fibres.


C. Actin filament iv. I-band


The I-band contains only thin (Actin) filaments in the myofilament.


D. Sarcomere iii. Contractile unit


A sarcomere is the functional contractile unit of a muscle fibre which contains two types of myofilaments myosin and actin.

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