Asked in KMU MDCAT 2023 2023Moderate

Which of the following organelle is regarded as self-replicable organelle

Correct answer: C. Mitochondria

  • A. Endoplasmic reticulum
  • B. Golgi bodies
  • C. Mitochondria
  • D. Vacoule

Explanation

Option C is correct.Mitochondria are regarded as self-replicating organelles. They have their own DNA and can replicate independently of the nucleus. This means that they can divide and reproduce independently, without the assistance of other organelles.Mitochondria are essential for energy production in the cell. They convert food into energy in the form of ATP, which is the cell's energy currency. Mitochondria are also involved in other cellular processes, such as cell signaling and apoptosis (programmed cell death).The endoplasmic reticulum (ER) is not regarded as a self-replicating organelle because it does not have its own DNA. DNA is required for self-replication, as it contains the instructions for building new organelles. The ER is a network of membranes that is involved in the production and transport of proteins and lipids. It is made up of two types of membranes: the rough ER and the smooth ER. The rough ER is covered in ribosomes, which are the organelles that synthesize proteins. The smooth ER is involved in the production of lipids and the detoxification of drugs and toxins. Golgi bodies are also not self-replicating organelles. Golgi bodies are involved in the processing and packaging of proteins and lipids for transport to other parts of the cell. Vacuoles are not self-replicating organelles. Vacuoles are storage organelles that can contain water, salts, and other molecules.

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About Cytoplasmic Organelles

Cytoplasmic organelles are the specialized structures suspended in cytoplasm, including mitochondria, ribosomes, endoplasmic reticulum, Golgi apparatus, lysosomes, vacuoles and centrosomes. Questions compare their structures and functions in animal and plant cells, including chloroplasts and the role of the endomembrane system in transport and secretion.

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