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

Why are vaccines used in the prevention, Q. Why are vaccines used in the pr...

Q. Why are vaccines used in the prevention but not in the treatment of infections? Why can antivenom serums be used in prevention and treatment? Vaccines are not used in the tr

Explain difference between fats and oils, Explain the molecular difference ...

Explain the molecular difference between fats and oils. How do the differences affect their physical properties?

What are fitness tests, What are Fitness Tests? Testing is an important...

What are Fitness Tests? Testing is an important evaluation tool for the sports performer as it gives them an insight into their current physical condition and the effectiveness

Define ultrasonic and sonic vibrations, Ultrasonic and sonic vibrations ...

Ultrasonic and sonic vibrations Cells of all types can be destructed by intense sonic and ultrasonic vibrations generated by magnetostrictive oscillations or peizo electric cry

Signal transduction, What is the initial concentration of Beta-adrenergic r...

What is the initial concentration of Beta-adrenergic receptor in blood?

LIFE PROCESSES, WHAT IS HEART? AND WHAT THEY DO WORK IN OUR BODY.

WHAT IS HEART? AND WHAT THEY DO WORK IN OUR BODY.

Explain about g-protein, Explain about G-protein   A.  When an agonist ...

Explain about G-protein   A.  When an agonist binds to the binding site of a G-protein-coupled receptor (GPCR), this leads to GTP displacing a GDP bound to the alpha subunit of

Neurotransmitters to neuromuscular junctions, Blood functions to maintain h...

Blood functions to maintain homeostasis in the human body through all but which of the following: Answer moving carbon dioxide away from cells following completion of aerobic metab

Define post-surgical nutrition support for chd patient, Define Post-surgica...

Define Post-surgical Nutrition Support for CHD Patient? Nutrition support should be started as soon as possible. If oral not possible, enteral nutrition support should be pr

Why is meiosis important for the maintenance, Why is meiosis important for ...

Why is meiosis important for the maintenance of the normal quantity of chromosomes of a species with sexual reproduction? A reduction to a half of the maximum normal quantity o

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