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Question

Lysosomes originate from

A
plasmalemma
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B
Golgi apparatus
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C
RER
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D
both a and b
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Solution

The correct option is B Golgi apparatus
Lysosomes are called as the ‘suicide bags’ of cells. They are membrane-bound vesicular structures formed during packaging of proteins in Golgi bodies. Lysosomes have powerful enzymes called acid hydrolases that act on proteins, carbohydrates and lipids.

The Golgi apparatus is responsible for modifying and packaging proteins and lipids released from ER. The Golgi complex is found lying close to the nucleus. They are made up of flattened sacs called cisternae arranged parallel to each other. They are the ‘packaging organelles’ of the cell. They help in modifying and transporting the proteins.

Endoplasmic reticulum (ER) is a membrane-bound network extending from the nuclear membrane to the plasma membrane. When ribosomes are found attached to the surface of the ER, it is called a rough endoplasmic reticulum (RER) and if there are no ribosome attached to it, it is called the smooth endoplasmic reticulum (SER).

Plasmalemma is another name for the plasma membrane. This is the outermost layer of an animal cell and the layer lying inner to the cell wall in a plant cell. It is selectively permeable in nature.

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