Question

How big are mitochondria?

Answer 1

Mitochondria are membrane-bound organelles, but with two different membranes. The powerhouse of our cell mitochondria has an external film and inward layer. The inner layer is known as a cristae that collapses.

Complete answer:
The size and shape of mitochondria vary from one tissue to another along with physiological state of cells. Most of the mitochondria are ovoid bodies with a diameter ranging from 0.5 and 1.0 µm and length up to 7 µm. The folds of the internal layer or the cristae give an expansion in the surface area which gives the mitochondrion more areas for ATP creation to happen. The folds (cristea) of the mitochondria give a more noteworthy surface territory for the concoction responses of oxidative phosphorylation to happen. Expanded surface region permits more proteins that make the electron transport anchor during this procedure to work at making more ATP. More space implies more vitality manufacturing plants in every mitochondrion and more vitality to fuel our organs and frameworks to support life. The purpose behind them is to expand the surface region of the mitochondrial inside, which makes more space for a bigger number of oxidative chemicals. That gives the mitochondrion an immeasurably more noteworthy limit with respect to ATP generation.
The number and distribution of mitochondria in a cell is closely related to activity of the cell and its organelles. Few cells grow and produce some product such as digestive enzymes, actively transporting materials into the cell, or undergoing movement may display increased numbers of mitochondria during periods of activity and reduced numbers during periods of quiescence.

Note: Some cells have different amounts of mitochondria due to their energy needs such as muscles, liver, kidney to name a few. Mitochondria are free-floating cell organelles. Chemical energy produced by mitochondria is stored in a small molecule called adenosine triphosphate.