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  2. Dietary fiber - Wikipedia

    en.wikipedia.org/wiki/Dietary_fiber

    Dietary fiber (fibre in Commonwealth English) or roughage is the portion of plant-derived food that cannot be completely broken down by human digestive enzymes. [1] Dietary fibers are diverse in chemical composition and can be grouped generally by their solubility , viscosity and fermentability which affect how fibers are processed in the body ...

  3. Cellular waste product - Wikipedia

    en.wikipedia.org/wiki/Cellular_waste_product

    Cellular waste products are formed as a by-product of cellular respiration, a series of processes and reactions that generate energy for the cell, in the form of ATP. One example of cellular respiration creating cellular waste products are aerobic respiration and anaerobic respiration .

  4. Rumen - Wikipedia

    en.wikipedia.org/wiki/Rumen

    The rumen, also known as a paunch, is the largest stomach compartment in ruminants. [1] The rumen and the reticulum make up the reticulorumen in ruminant animals. [2]The diverse microbial communities in the rumen allows it to serve as the primary site for microbial fermentation of ingested feed, which is often fiber-rich roughage typically indigestible by mammalian digestive systems.

  5. Human nutrition - Wikipedia

    en.wikipedia.org/wiki/Human_nutrition

    Carbohydrates and proteins provide 17 kJ approximately (4 kcal) of energy per gram, while fats provide 37 kJ (9 kcal) per gram. [8] However, the net energy derived from the macronutrients depends on such factors as absorption and digestive effort, which vary substantially from instance to instance.

  6. Intracellular digestion - Wikipedia

    en.wikipedia.org/wiki/Intracellular_digestion

    However, to obtain energy from its outside environment, cells must not only retrieve molecules from their surroundings but also break them down. [1] This process is known as intracellular digestion. [1] In its broadest sense, intracellular digestion is the breakdown of substances within the cytoplasm of a cell.

  7. List of macronutrients - Wikipedia

    en.wikipedia.org/wiki/List_of_macronutrients

    Macronutrients are defined as a class of chemical compounds which humans consume in relatively large quantities compared to vitamins and minerals which provide humans with energy. Fat has a food energy content of 38 kilojoules per gram (9 kilocalories per gram) proteins and carbohydrates 17 kJ/g (4 kcal/g). [2]

  8. 6 Whole Foods Items That Are a Waste of Money

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  9. Lignocellulosic biomass - Wikipedia

    en.wikipedia.org/wiki/Lignocellulosic_biomass

    Waste biomass is produced as a low value byproduct of various industrial sectors such as agriculture (corn stover, sugarcane bagasse, straw etc.) and forestry (saw mill and paper mill discards). Energy crops are crops with a high yield of lignocellulosic biomass produced as a raw material for the production of second-generation biofuel ...