Which cells have more mitochondria?

What cells have the most mitochondria? A. Your heart muscle cells – with about 5,000 mitochondria per cell. These cells need more energy, so they contain more mitochondria than any other organ in the body!

Why do some cells lack mitochondria?

Prokaryotic cells are less structured than eukaryotic cells. They have no nucleus; instead their genetic material is free-floating within the cell. They also lack the many membrane-bound organelles found in eukaryotic cells. Thus, prokaryotes have no mitochondria.

Why does smooth muscle have less mitochondria?

The same is true for smooth muscle; however, due to a combination of a reduced requirement to perform work and greater efficiency of contraction, smooth muscle would be expected to contain fewer mitochondria than skeletal and cardiac muscles.

Why red blood cells have no mitochondria?

In most mammals, erythrocytes do not have any organelles (e.g. nucleus, mitochondria ); this frees up room for the hemoglobin molecules and prevents the cell from using the oxygen it is carrying.

Does WBC have mitochondria?

Mitochondria in the white blood cells secrete a web of DNA fibres that raises the alarm. Mitochondria are present in all cells and normally produce the energy needed by the cell, by burning sugar and fat to form water and carbon dioxide.

Do erythrocytes contain mitochondria?

Mammal red blood cells (erythrocytes) contain neither nucleus nor mitochondria. Traditional theory suggests that the presence of a nucleus would prevent big nucleated erythrocytes to squeeze through these small capillaries. And, there is no sound reason to abandon mitochondria for the living cells.

Which type of muscle skeletal or cardiac has less mitochondria?

smooth muscle
The same is true for smooth muscle; however, due to a combination of a reduced requirement to perform work and greater efficiency of contraction, smooth muscle would be expected to contain fewer mitochondria than skeletal and cardiac muscles.

Do cardiac muscle cells have mitochondria?

In cardiac muscle cells, mitochondria occupy about 40\% of the total volume (Page and McCallister, 1973) and provide about 90\% of the ATP required under normal aerobic conditions (Neely and Morgan, 1974).

Which eukaryotes do not have mitochondria?

The number of mitochondria per cell varies widely—for example, in humans, erythrocytes (red blood cells) do not contain any mitochondria, whereas liver cells and muscle cells may contain hundreds or even thousands. The only eukaryotic organism known to lack mitochondria is the oxymonad Monocercomonoides species.