Question

Explain what is membranous cell organelles and list three membranous cell organelles. What is non-membranous cell organelles, explain with a three examples?

Accepted Answer

Membrane-bound organelles are cellular structures that are bound by a biological membrane. The membrane may be a single layer or a double layer of lipids and typically with interspersed proteins.

Some examples of membranous cell organelles are as follows:

Nucleus: The nucleus is a double-membraned organelle that contains the genetic material and other instructions required for cellular processes.

Chloroplast: Chloroplasts are green coloured plastids that function as the site of photosynthesis in eukaryotic. They are mostly found in the cells of the mesophyll in plant leaves. It contains chlorophyll, a pigment that helps in absorbing sunlight for photosynthesis.

Mitochondria: It is a membrane-bound organelle, present in the cytoplasm of the cell of Eukaryotic organisms which synthesizes energy molecules in the form of ATP, which is used by the cell.

Non-membranous organelles are not surrounded by a plasma membrane. Most non-membranous organelles are part of the cytoskeleton, the major support structure of the cell.

Some examples of non-membranous cell organelles are as follows:

Ribosome: It is the cell organelle that is not bounded by a membrane. It comprises rRNA and proteins. It helps in the synthesis of proteins. It also helps in translating the DNA code through the messenger RNA into the actual proteins.

Centrioles: Centrioles are a small group of microtubules that lie close to the nucleus of a cell. They are an essential part of all animal cells. The main function of centriole is to help with cell division in animal cells. The centrioles also help in the formation of the spindle fibres that separate the chromosomes during cell division.

Cell wall: A cell wall is defined as the non-living component, covering the outmost layer of a cell. The cell wall separates the interior contents of the cell from the exterior environment.

Explain what is membranous cell organelles and list three membranous cell organelles. What is non-membranous cell organelles, explain with a three examples?

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