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

What is the elements of an organic compound, Give an example of how a funct...

Give an example of how a functional group can affect the elements of an organic compound. The hydroxyl group on alcohols is polar and this produces alcohols polar compounds.

Test tube baby, TEST TUBE BABY - Ova are fertilized in laboratory di...

TEST TUBE BABY - Ova are fertilized in laboratory dish (in vitra) containing a nutrient broth . It may be artificial insemination donor (AID) / Artificial insemination h

Gonad glands, what are the gonad gland disorders and what do they do

what are the gonad gland disorders and what do they do

Pericardiocentesis, Pericardiocentesis It is removal of fluid form the...

Pericardiocentesis It is removal of fluid form the pericardial sac. It is a specialized procedure done n ICU or cardiac cath lab or OT. A 16 or 18 gauge needle is inserted

Determine the assess mobility of prosthesis, Assess Mobility of Prosthesis ...

Assess Mobility of Prosthesis All implant-supported prostheses must be stable.  To detect mobility, place an explorer or scaler under the embrasures and apply gentle pressure i

Mention causes of implant failure, Mention causes of implant failure due to...

Mention causes of implant failure due to improper implant selection. Implant selection errors : a) Improper implant type in improper bone type. b) Improper length, width

Define recommended dietary allowance for pyridoxine (rda), Define Recommend...

Define Recommended Dietary Allowance for pyridoxine (RDA)? Average requirements for pyridoxine vary with age, sex and physiological conditions such as protein status, pregnan

Explain about the net protein ratio (npr), Explain about the Net Protein Ra...

Explain about the Net Protein Ratio (NPR)? This method was introduced by Bender and Doell (1957) and is a modification of the PER method. In this method, an allowance is made f

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