Which organelle is known as the “powerhouse of the cell”?
Answer: Mitochondria
Explanation: Mitochondria generate energy in the form of ATP (Adenosine Triphosphate) through cellular respiration, which is essential for various cellular activities.
Which organelle is responsible for protein synthesis?
Answer: Ribosome
Explanation: Ribosomes are either free-floating in the cytoplasm or attached to the rough endoplasmic reticulum (RER). They are responsible for translating genetic information into proteins.
Which organelle is known as the “suicidal bag” of the cell?
Answer: Lysosome
Explanation: Lysosomes contain digestive enzymes that break down waste materials and cellular debris. If the cell is damaged, lysosomes release enzymes that digest the cell itself.
Which organelle is involved in packaging and dispatching cellular products?
Answer: Golgi apparatus
Explanation: The Golgi apparatus modifies, sorts, and packages proteins and lipids for storage or transport out of the cell.
Which organelle helps in detoxifying poisons and drugs in liver cells?
Answer: Smooth Endoplasmic Reticulum (SER)
Explanation: SER is involved in lipid synthesis and detoxification of harmful substances, particularly in liver cells.
Which organelle contains its own DNA apart from the nucleus?
Answer: Mitochondria
Explanation: Mitochondria have their own DNA and ribosomes, enabling them to replicate independently and produce some of their own proteins.
Which organelle is present only in plant cells and aids in photosynthesis?
Answer: Chloroplast
Explanation: Chloroplasts contain chlorophyll, which captures sunlight and converts it into chemical energy through photosynthesis.
Which organelle provides structural strength to plant cells?
Answer: Cell Wall
Explanation: The cell wall is composed mainly of cellulose and provides rigidity and protection to plant cells.
Which organelle acts as a storage sac in both plant and animal cells?
Answer: Vacuole
Explanation: Vacuoles store nutrients, waste products, and other substances. They are larger in plant cells and help maintain turgidity.
Which organelle controls the cell’s activities and contains genetic material?
Answer: Nucleus
Explanation: The nucleus contains DNA, which governs cell function and heredity. It directs cellular activities through gene expression.
