Explanation
A T-tubule originates from the endoplasmic reticulum. It is a deep invagination of the sarcolemma and located at the junction between the A band and I band of skeletal muscle. Through these, the electrical impulses are transmitted from the sarcoplasms to the fiber's interior.Thus, the correct answer is option C.
Lysosomes are membrane bound cellular organelles. They possess many hydrolytic enzymes for the digestion of cellular waste, debris as engulfed, killed viruses or bacteria. The internal environment of the lysosome is very acidic with the pH around 4.8.
Lysosomes are membrane bound cellular organelles. They possess many hydrolytic enzymes for the digestion of cellular waste, debris as engulfed, killed viruses or bacteria. The lysosomes are called as "suicide bags" of the cell or "disposal units" of the cell because they digest the incoming food materials and remove the foreign bodies, toxic molecules and debris, or "recycling centres" as they break down worn out cells and cell organelles to component molecules for building new organelles and cells.
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