Mitochondria , Biology

Assignment Help:

MITOCHONDRIA

  1. It is the power house of the cell because they are the major centers of release of energy in the aerobic respiration.
  2. Mitochondria and chloroplast both are antagonistic to each other. Chloroplast stores food stuffs energy during photosynthesis whereas mitochondria convert potential energy of food stuffs into kinetic energy during respiration.
  3. Discovered by Kolliker (1880) in striped muscles of insects and he called it Cytoplasmic granules .
  4. Flemming called it Fila.
  5. Petzium called them Sarcosome.
  6. Richard Altman called it Bioplast.
  7. The term "mitochondria" given by Benda.
  8. F. Meves first observed them in plants ( Nymphea)
  9. Kinsbury and Hogeboom related them with cell respiration.
  10. Seekevitz called them power house of cell.
  11. Palade worked out ultrastructure of mitochondria.
  12. Nass-Nass, Afzelius and Margit discovered DNA in mitochondria & called it mtDNA. It is also known as orgenelle DNA.
  13. Mitochondria can be stand by stained by Janus Green-B. After staining mitochondria seems Greenish blue.
  14. Total mitochondria in a cell = Chondriosome, term given by Ptezium.
  15. Life span of mitochondria is 5-10 days.

NUMBER

  1. Average number of mitochondria in each cell is about 1000-1600.
  2. Single mitochondrion present in Microasterias (alga), Chlorella fusca (Green algae), Trypanosoma, Micromonas (Protozoans).
  3. Less than 10 mitochondria present in Fungi.
  4. 25 in sperm cell, 300-500 in kidney cells, 500-1000 in liver cells, 30000 in some oocyte, 50000 in giant amoeba (chaos chaos) & 5 lakhs in flight muscle cells.

SHAPE & SIZE

  1. Mitochondria are spherical or filamentous in shape.
  2. Smallest mitochondria are present in yeast (< 1m).
  3. Largest mitochondria are present in Rana pipens ( 20-40 m)
  4. In human body largest mitochondria are present in pancreatic cells (10m).
  5. Size depends on activity of cell. Active cells (meristematic cells) have large mitochondria.

Related Discussions:- Mitochondria

Biological adaptation, Biological Adaptation These adaptations depend ...

Biological Adaptation These adaptations depend on the geology and basic fertility of the region and some of the mechanisms that are especially well developed in tropical rain

Assessment of magnesium status and dietary requirements, Define Assessment ...

Define Assessment of Magnesium Status and Dietary Requirements?  In order to estimate Mg requirements and establish relationship between magnesium intake and deficiency, it is

Explain effect of irradiation on nutrients, Normal 0 false fa...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Leukamia.., is the leukamia dangerous

is the leukamia dangerous

Determine the steps for withdrawing the insulin, Determine the Steps for Wi...

Determine the Steps for Withdrawing the Insulin The important thing about measuring a dose is to use the front of the plunger not the back - Check doctor's prescription.

Explain about force-gated channel, At 1:00AM, Neuron A is at rest with memb...

At 1:00AM, Neuron A is at rest with membrane potential equal to -70 millivolts; it is producing no action potentials.  The threshold for an action potential in neuron A is -55 mill

Breeding of crops with high levels of minerals is called, Breeding of crops...

Breeding of crops with high levels of minerals, vitamins and proteins is called: 1. Somatic hybridisation 2. Biofortification 3. Biomagnification 4. Micropropagation

Production of rare hybrids, Production of Rare Hybrids Hybridization ...

Production of Rare Hybrids Hybridization is a well established plant breeding procedure to obtain superior plants by combining useful characters distributed in different plan

Determine energy requirements for athletes, Determine Energy Requirements f...

Determine Energy Requirements for Athletes? You are familiar with the fact that body needs' energy to maintain body temperature, to meet metabolic demands, maintain electrolyte

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd