Which of the following is the primary function of lysosomes in a cell?
Show answer & explanation
Correct answer: B
Explanation
Correct Answer:
Waste disposal
Explanation:
The primary function of lysosomes in a cell is waste disposal and intracellular digestion. They are membrane-bound organelles containing digestive enzymes that break down excess or worn-out cell parts, foreign material, and waste products. Because of their role in destroying unwanted cellular components and damaged cells (often referred to as programmed cell death or apoptosis), they are commonly known as the 'suicide bags' of the cell.
Key Points:
Lysosomes contain hydrolytic enzymes that function effectively in an acidic environment maintained within the organelle.
Mitochondria are responsible for energy production, ribosomes handle protein synthesis, and the endoplasmic reticulum/smooth ER handles lipid storage and synthesis.
Important Questions and Answers:
Question: Which organelle is famously known as the 'suicide bag' of the cell due to its digestive enzymes?
Answer: Lysosome.
Question: Which cell organelle is primarily responsible for energy production (ATP synthesis)?
Answer: Mitochondria.