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HeLa cells themselves are not pigmented, and usually appear translucent/gray under light microscopy. The growth medium may however be colored, and a common color is magenta. The tumors themselves will appear purple, as most tumors do, due to the broken vascularization. Tumors commonly secrete growth factors leading to angiogenesis, but the resulting vessel ...


2

Compared to their body weight, humans don't really eat that much Where I live, the typical serving at a restaurant is 150g or 200g of meat, plus about the same amount of side dish. Even if your test subject is a big eater, that's just 300 + ~200g of biomass. Eating that much food without drinking is difficult, so you allow your subject one beer, or about ...


1

To make a proper evaluation of the immediate effect of food on your weight you need to: Have a sensitive (optimally: digital) and properly working scale that shows the same value when you weigh yourself few times in a row Wear the same clothes during the pre- and post-meal measurement Not vomit, urinate, defecate or sweat significantly between the 2 ...


4

How about non-target cells? I found several examples of that usage including: A book section titled: 9.3 How are steroid hormone target cells differentiated from non-target cells?1 Containing the following line: Thus, estrogen will stimulate mRNA and protein synthesis in a target cell, but not in a non-target cell. A book chapter titled: Target or non-...


0

Prion disease is caused when cellular prion protein (PrPc) is misfolded to form abnormal prion protein called scrapie prion protein (PrPSc). These newly formed abnormal prions can't be degraded by enzymes so they keep on accumulating and are responsible for stimulating other normal proteins to fold improperly and form protein aggregates. Accumulation of ...


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Yes, malformed prion proteins can affect tissues outside of the brain. Via: https://www.merckmanuals.com/home/brain,-spinal-cord,-and-nerve-disorders/prion-diseases/overview-of-prion-diseases Another familial prion disease has been recently discovered. It differs from other prion diseases because it causes diarrhea and affects nerves throughout the body ...


3

This is because of the difference in mitochondrial protein expression of red and white muscle fibres. There is difference in posttranslational modification, which leads to functional difference as red muscle contraction is slow, and white muscle contraction is rapid. Metabolic control in mitochondria contributes in speed of activity and cellular energy ...


2

I hate to sound rude, but you could easily answer this yourself with even the most minimal look into well-tabulated demographic information, rather than highly non-representative observations. About 13% of Japan's population is 0-14 years old, the third lowest fraction in the world. (https://data.worldbank.org/indicator/SP.POP.0014.TO.ZS ; easy to find with ...


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MacIntosh, Brian R.; Gardiner, Phillip F.; McComas, Alan J. (2006). Skeletal Muscle: Form and Function. Human Kinetics. ISBN 978-0-7360-4517-9. [https://en.m.wikipedia.org/wiki/Myocyte?wprov=sfla1 ][1] [1]: https://en.m.wikipedia.org/wiki/Myocyte?wprov=sfla1 Good question, I guess that high production could be linked to higher relative consume of ATP ...


3

In general, a grown up man will have a voice with a lower pitch than when he was an adolescent (Cleveland Clinic). The pitch height basically depends on the length of the vocal cords. According to Wikipedia: Adult male voices are usually lower-pitched and have larger folds. The male vocal folds...are between 17 mm and 25 mm in length. The female vocal ...


0

Most disinfectants are rendered ineffective or much less effective in the presence of organic materials. Washing your clothes prior to adding Canesten in the rinse allows removal of organic matter and therefore more effective action.


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Piloerection of head hair does happen as often as it occurs elsewhere on the body, but head hair length tends to make it difficult to see. Close observation, especially with short hair, should make it visible. Piloerection of head hair is something more commonly felt by the person it is happening to rather than seen by others (or in mirrors); when you get ...


1

Actually an ovum doesn't ever start cell division because once it is fertilized by a sperm the combination of the two cells is call a zygote. In humans, the zygote proceeds with the many steps following fertilization leading to the first division; this takes on the order of 24 to 30 hours. At that point the set of cells may be termed an embryo or various ...


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