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Title: Introduction to Mitocondria
Description: Mitochondria are membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions. in these notes you will found brief description about mitochondrion with diagrams. these notes help high school students.
Description: Mitochondria are membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions. in these notes you will found brief description about mitochondrion with diagrams. these notes help high school students.
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MITOCHONDRIA
1
2
3
Mitochondria
• Power house of the cell
...
• They are involved in manufacture and supply of
energy to the cell
...
4
Structure
• Mitochondria have double membrane structure
...
• These infolds are called cristae
...
5
The outer mitochondrial membrane is
composed of about 50% phospholipids by
weight and contains a variety of enzymes
involved in such diverse activities as the
elongation of fatty acids, oxidation of
epinephrine
(adrenaline),
and
the
degradation of tryptophan
...
…
• The inner membrane contains proteins with
three types of functions
...
• ATP synthase, which makes ATP in the matrix
...
7
Function
• Mitochondria are the site of most of the energy
production in eukaryotic cells
...
• Mitochondria are very abundant in cells that require
lots of energy
...
(The DNA in the cell nucleus does not code for the
construction of mitochondria
...
• Mitochondria are not part of the genetic code in
the nucleus of your cells
...
• Mothers give genes and cytoplasm to their children
in their egg cells
...
15
• Although the primary function of mitochondria is to
convert organic materials into cellular energy in the
form of ATP, mitochondria play an important role in
many metabolic tasks, such as
• Apoptosis-Programmed cell death
• Glutamate-mediated excitotoxic neuronal injury
• Cellular proliferation
• Regulation of the cellular redox state
• Heme synthesis
• Steroid synthesis
16
Mitochondrial functions
• Heat production (enabling the organism to
stay warm)
...
• For example: mitochondria in liver cells
contain enzymes that allow them to
detoxify ammonia, a waste product of
protein metabolism
...
18
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Title: Introduction to Mitocondria
Description: Mitochondria are membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions. in these notes you will found brief description about mitochondrion with diagrams. these notes help high school students.
Description: Mitochondria are membrane-bound cell organelles that generate most of the chemical energy needed to power the cell's biochemical reactions. in these notes you will found brief description about mitochondrion with diagrams. these notes help high school students.