SCIENCE
GENETIC AND MENDELS LAW OF HEREDITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1 and 2
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1,2 and 3
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2,3 and 4
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1,2 and 4
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Detailed explanation-1: -Skeletal muscle has a specialized form of ER known as sarcoplasmic reticulum (SR). The SR is a storage depot for calcium and regulates its release during myofibrillar contraction; hence, the SR has a critical role in muscle contraction and the maintenance of muscle homeostasis.
Detailed explanation-2: -Skeletal muscle cells Muscle cells, commonly known as myocytes, are the cells that make up muscle tissue. There are 3 types of muscle cells in the human body; cardiac, skeletal, and smooth. Skeletal muscle cells are long, cylindrical, multi-nucleated and striated.
Detailed explanation-3: -Intercalated discs are part of the cardiac muscle sarcolemma, so they also contain gap junctions for depolarization between muscle fibers and desmosomes that hold the fibers together during cardiac muscle contraction (Fig.
Detailed explanation-4: -Cardiac and skeletal muscle cells both contain ordered myofibrils and are striated. Cardiac muscle cells are branched and contain intercalated discs, which skeletal muscles do not have.