Image Based Question – 74103

Which cell organelle is absent in cardiac muscle in the region marked by arrow?

A. Mitochondria

B. Golgi body

C. SER

D. Lysosome

Correct Answer » D Explanation

Ans. d. Lysosome

• The marking areas are centrally placed nuclei.
• The single nucleus of the cardiac muscle cell is located in the center of the cell.
• Myofibrils pass around the nucleus, producing a biconical juxtanuclear region in which the other organelles are concentrated.
• This perinuclear region is rich in mitochondria and contains a Golgi apparatus, glycogen granules, and lipofuscin granules.