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People who become fat as adults may have no more fat cells than their lean peers, but their fat cells are larger. In general, people with an excess of fat cells find it harder to lose weight and keep it off than the obese who simply have enlarged fat cells. [3] Body fat cells have regional responses to the overfeeding that was studied in adult ...
Kidney and nerve tissue cells can form memories much like brain cells, one new study has found. ... of a fat cell make it more difficult for individuals with obesity to maintain weight loss in the ...
Some animals, particularly ruminants and termites, can digest cellulose with the help of symbiotic micro-organisms that live in their guts, such as Trichonympha. In human nutrition , cellulose is a non-digestible constituent of insoluble dietary fiber , acting as a hydrophilic bulking agent for feces and potentially aiding in defecation .
Ruminants can extract food energy from the respiration of cellulose because of bacteria in their rumens that decompose it into digestible carbohydrates. Other minor components of the human diet that contribute to its energy content are organic acids such as citric and tartaric , and polyols such as glycerol , xylitol , inositol , and sorbitol .
Fat body is a highly dynamic insect tissue composed primarily of storage cells. It is distributed throughout the insect's internal body cavity (the haemocoel ), in close proximity to the hemolymph as well as organs such as the epidermis , digestive organs and ovaries .
Their population has declined by more than 60% in the last 20 to 25 years, and a 2018 study additionally revealed that although more than 360,000 gorillas inhabit the forests of Western Equatorial ...
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A large percentage of herbivores also have mutualistic gut flora made up of bacteria and protozoans that help to degrade the cellulose in plants, [1] whose heavily cross-linking polymer structure makes it far more difficult to digest than the protein- and fat-rich animal tissues that carnivores eat.