Wikipedia
Intermembrane space of mitochondria - Because of channels in the outer membrane of the mitochondria, the content of the intermembrane space is similar to that of the content of the cytoplasm. As electrons move down the proteins in the electron transport chain, the electrons lose energy to bring H+ ions from the mitochondrial..
TutorVista
Plastids and Mitochondria - Test Questions
Question 11 - Question: Give the importance of cristae in mitochondria. Answer: The finger-like cristae present in the inner-folded membrane greatly increase the surface area of the membran..
Mitochondria
Mitochondria are tiny structures that occur in varying shapes cylindrical, spherical, oval, rod shaped etc. They are found distributed all over the cytoplasm. fig. 16.6 - Mitochondria Each mitochondrion is bound by a double membrane. The outer membrane is smooth and straight, wh..
Mitochondria are tiny structures that occur in varying shapes cylindrical, spherical, oval, rod shaped etc. They are found distributed all over the cytoplasm. fig. 16.6 - Mitochondria Each mitochondrion is bound by a double membrane. The outer membrane is smooth and straight, wh..Middle Piece
The middle piece consists of apical part of the axial filament surrounded by a tightly coiled spiral sheath of elongated mitochondria. The mitochondria contains oxidative enzymes and provides energy for sperm motili..
Cell Organelles
Some of the cell organelles are Endoplasmic Reticulum (ER), Golgi Apparatus, Lysosomes, Peroxisomes, Ribosomes, Centrosome, Mitochondria, Plastid..
Science Daily
Chronic Kidney Disease Linked To Malfunctioning Mitochondria - ScienceDaily (Aug. 23, 2009) — Chronic kidney disease (CKD) has been linked to oxidative stress caused by dysregulation of the genes that control mitochondria. A study in the open access journal BMC Genomics has revealed alterations in respiration gene expression in the white blood cells of CKD patients. See also: Health& Medicine Immune System Diseases and Conditions Hypertension Genes Lymphoma Healthy Aging Reference Skeletal muscle Huntington's disease Polyphenol antioxidant Adipose tissue Gianluigi Zaza and Simona Granata, from the Renal Unit of University of Bari, Italy, led a team of researchers who carried out the genomic tests. Zaza said, 'Our results suggest, for the first time, that CKD patients may have an impaired mitochondrial respiratory system and this condition may be both the consequence and the cause of enhanced oxidative stress'. The researchers found 44 genes that were up-regulated in the peripheral blood mononuclear cells of CKD patients, compared to normal cont....
Chronic Kidney Disease Linked To Malfunctioning Mitochondria - Chronic kidney disease (CKD) has been linked to oxidative stress caused by dysregulation of the genes that control mitochondria. A study has revealed alterations in respiration gene expression in the white blood cells of CKD patients...
  Exploring the MitochondriaGo into the Mitochondria to see the sections for making ATP
  Mitochondria are creepyMitochondria are creepy But we'd die if we didn't have them Chloroplasts are much the same But without them we wouldn't get oxygen The liver has many functions You can use it as any answer Large surface area is the other 'catch all' but I suppose it depends on the context Mycobacterium Tuberculosis Causes Tuberculosis Common symptoms include a persistent cough, Shortness of breath and a fever. Glucose is used for energy and Animals store it in glycogen, which has loads of branches for fast release and it's compact so it's good for storage. Mitochondria are creepy But we'd die if we didn't have them Chloroplasts are much the same But without them we wouldn't get oxygen Leaves contain stomata which open during the day time They let air in and out and water out as a part of transpiration Mitosis is a cell division and it's split up into four different stages the cells it produces are genetically the same but uncontrolled it can lead to cancer. Enzymes are globular proteins and they help c..
Question : mitochondria + chloroplast both contain circular molecules of DNA and free ribosomes. what conclusions can reasonably be made on the basis of the presence of such structures?
a little help please :)
i know that both are sites of energy production. but what does that have to do with the DNA and free ribosomes?
Answer : It means that millions of years ago when the first cells were forming, the mitochondria and chloroplasts were probably their own tiny cells that were ingested by other, bigger cells and became a part of the bigger cells as the primary sources of energy for the bigger cells
Answer : It means that millions of years ago when the first cells were forming, the mitochondria and chloroplasts were probably their own tiny cells that were ingested by other, bigger cells and became a part of the bigger cells as the primary sources of energy for the bigger cells
Question : I'm talking about simple squamous epithelium.
Or is 5 mitochondria the number every cell should have to function properly? What are the 'basic' number of organelles?
I'm making a model of that squamous cell...
And do you know if a cell could have more than 1 endoplasmic reticulum?
Thanks.
Answer : A cell can have any number of mitochondria, usually 2-3+; active cells have a greater number of, larger + better developed ones. Squamous epithelium eg of the skin or oesophagus, are not very active and can have very few mitochondria; yes, even less than 5. Endoplasmic reticulum is an uncountable noun ie just like flour or soil, you cannot quantify it numerically. Therefore, the endoplasmic reticulum can be more or less elaborate, but is a system of cisternae (plates), tubules (minute tubes) and vesicles ('bubbles') that cannot be counted. Most cells will have at least one of each type of organelle, depending on its function and its state of activity. Hope this helps. For more info, please IM.
Answer : A cell can have any number of mitochondria, usually 2-3+; active cells have a greater number of, larger + better developed ones. Squamous epithelium eg of the skin or oesophagus, are not very active and can have very few mitochondria; yes, even less than 5. Endoplasmic reticulum is an uncountable noun ie just like flour or soil, you cannot quantify it numerically. Therefore, the endoplasmic reticulum can be more or less elaborate, but is a system of cisternae (plates), tubules (minute tubes) and vesicles ('bubbles') that cannot be counted. Most cells will have at least one of each type of organelle, depending on its function and its state of activity. Hope this helps. For more info, please IM.
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