Read the following statements.
Statement I: Muscle fibre is the anatomical unit of muscle tissue.
Statement II: Sarcomere is the functional unit of contraction in a myofibril.
In light of the given statements, choose the correct answer from the options given below.

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Statement I is incorrect but statement II is correct.

Both statement I and statement II are incorrect.

Both statement I and statement II are correct.

Statement I is correct but statement II is incorrect.

answer is C.

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Detailed Solution

Statement I is true: A muscle fibre (also called muscle cell or myofibre) is the anatomical unit of muscle. It is a single, elongated cell that makes up the bulk of skeletal and smooth muscle tissues. Muscle fibers contain myofibrils, which are the contractile units responsible for muscle contraction.
Statement II is true: A sarcomere is the functional unit of contraction within a muscle fibre. Sarcomeres are the repeating structural units along myofibrils that contain the contractile proteins (actin and myosin) responsible for muscle contraction. When sarcomeres shorten during muscle contraction, the overall muscle fiber contracts as well.

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