Question : Endoplasmic Reticulum is rough because of _____ present on their surface.
Option 1: Golgi bodies
Option 2: Plastids
Option 3: Lysosomes
Option 4: Ribosomes
Correct Answer: Ribosomes
Solution : The correct option is Ribosomes.
When the cytoplasmic surface of the endoplasmic reticulum (ER) is covered with Ribosomes, it is referred to as "rough". When seen under a microscope, these ribosomes give the rough endoplasmic reticulum its distinctive look. The presence of ribosomes on the rough ER suggests that this region of the ER is engaged in protein synthesis.
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Question : The ______ principally performs the function of packaging materials to be delivered either to intracellular targets or secreted outside the cell.
Option 1: vacuoles
Option 2: endoplasmic reticulum
Option 3: lysosomes
Option 4: Golgi apparatus
Question : Which of the following cell organelles is responsible for cellular respiration?
Option 2: Mitochondria
Option 3: Nucleus
Option 4: Lysosomes
Question : ___________ is/are known as the powerhouse of the cell.
Option 1: Nucleus
Option 2: Endoplasmic reticulum
Option 3: Cytoplasm
Option 4: Mitochondria
Question : Which cell organelle appears as rounded or sausage-shaped structures under electron microscopy, measuring about 0.5-1.0 μm in diameter and 2-8 μm in length?
Option 1: Ribosomes
Option 2: Lysosomes
Option 3: Mitochondria
Option 4: Plastids
Question : Who first observed ribosomes in the mid-1950s and described them as small particles in the cytoplasm that were preferentially attached to the endoplasmic reticulum membrane?
Option 1: Ernst Abbe
Option 2: Albert Kolliker
Option 3: Carl Zeiss
Option 4: George E. Palade
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