What is the structure of mitochondrion, cell wall, cell membrane, and the nucleus

The mitochondria are called the powerhouses of the cell, where ATP is produced. It is composed of an inner membrane called cristae, and an outer membrane that covers the organelle.

The cell wall is a rigid structure made from(in the case of plant cells rather than bacteria or fungi) cellulose and other rigid fibers.

The cell membrane is a fluid, thinner structure made up of a double layer of phospholipids which are comprised of the hydrophilic heads facing outwards and hydrophobic tails facing toward each other in the layer.

The nucleus  has protons, and neutrons that are contained within it, and electrons around it.

Explanation:

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explanation:

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