Question

Which of the following organelles is bound by a double membrane system?

• A. Golgi apparatus
• B. Ribosome
• C. Chloroplast
• D. Central vacuole

Answer 1

The correct option is C Chloroplast

Golgi apparatus also called a Golgi complex is an organelle present in both plant and animal cells. It is responsible for transporting, modifying, packaging proteins, and lipids into vesicles for delivery to targeted areas of the cell and outside the cell. It is bound by a single membrane that is made up of a series of flattened stacked pouches called cisternae.

Ribosomes are the protein-synthesizing machinery of a cell consisting of RNA and associated proteins. It generally consists of two subunits (a small unit and a large unit) each consisting of rRNA and specialized proteins.

Chloroplasts are large organelles that are bound by a double membrane (inner and outer membrane) called the chloroplast envelope. The process of photosynthesis in higher plants is carried out by chloroplast. It absorbs sunlight and converts it into glucose which is used as food by the plants.

Central vacuole is an organelle in plant cells that is used to hold materials and waste produced by the cell. It has a single protective membrane called tonoplast which encloses the cell sap.