GENERAL HISTOLOGY

Detailed explanation-1: -Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell’s biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).

Detailed explanation-2: -Mitochondria: the energy converters Mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell. The process is called oxidative phosphorylation and it happens inside mitochondria.

Detailed explanation-3: -Cells that require a lot of energy, such as muscle cells, can contain hundreds or thousands of mitochondria. A few types of cells, such as red blood cells, lack mitochondria entirely. As prokaryotic organisms, bacteria and archaea do not have mitochondria.

Detailed explanation-4: -In addition to producing energy, mitochondria perform some other functions for the cell including cellular metabolism, the citric acid cycle, producing heat, controlling the concentration of calcium, and producing certain steroids. They can quickly change shape and move around the cell when needed.

Detailed explanation-5: -Like animal cells, plant cells also have mitochondria. The mitochondria play a critical role in integrating the sugar that is produced in the cell to generate energy. Mitochondria are necessary for plants to produce energy in ATP form, which is normally done during the day through photosynthesis.