fiber - WordReference English dictionary, questions, discussion and forums. Fiber bundles became their own object of study in the period 1935–1940. Fiber helps the... 2. nerve fiber (2) (botany) A cell that is narrow, elongated, and thick-walled, and one of the components of sclerenchyma tissue (3) (nutrition) Dietary fiber; roughage; a substance in plant foods that is either soluble or insoluble (4) (general) Any long strand of material Supplement In nutrition, a dietary fiber may be soluble or insoluble. Some of the body movements can be controlled at will, others cannot. All Rights Reserved, Regulation of Organic Metabolism, Growth and Energy Balance. They can be classified according to their origin: Vegetable fibers are generally based on arrangements of cellulose, often with lignin: examples include cotton, hemp,... Wood fiber, distinguished from vegetable fiber, is from tree sources. n. 1. This results in the “reshielding” of the actin-binding sites on the thin filaments. This is one of the main ways that the chromosomes get aligned on the metaphase plate, a hypothetical middle of the cell.It is also the main way they are separated during anaphase of mitosis or meiosis.While the addition and subtraction of dimers is one of the main ways that spindle fibers help carry chromosomes about the cell, there are two other primary methods. Formation Of Cellulose Fibers Tracked For The First Time. fast-twitch fiber: a muscle fiber that can develop high tension rapidly. It is comprised of two divisions that in the end, the resulting.. Meet the colorful takahē, an extremely rare flightless bird. It depends on your definition of 'instantaneous' and on your definition of 'stimulus'. n. 1. They are called carbohydrates as they comprise carbon, hydrogen, and oxygen at their chemical level. A slender, elongated, threadlike object or structure. Sarcolemma Definition. The ST fiber is usually fatigue resistant and has adequate oxygen and enzyme activity. Any information here should not be considered absolutely correct, complete, and up-to-date. ber 1. Muscle Definition. slow-twitch fiber: a muscle fiber that develops less tension more slowly than a fast-twitch fiber. While several associated proteins help, actin and myosin form thick and thin filaments which slide past each other to contract small units of a muscle cell. The parts of grains, fruits, and vegetables that contain cellulose and are not digested by the body. MyoD, also known as myoblast determination protein 1, is a protein in animals that plays a major role in regulating muscle differentiation.MyoD, which was discovered in the laboratory of Harold M. Weintraub, belongs to a family of proteins known as myogenic regulatory factors (MRFs). In some muscles the fibres run the entire length of the muscle (parallel fibres), up to several tens of centimetres long. Learn / Biology / Adrenergic Fiber. We will look at the sources and some of the benefits of consuming insoluble fiber. The definition was later Any information here should not be considered absolutely correct, complete, and up-to-date. 1. Dietary fiber, also known as roughage or bulk, includes the parts of plant foods your body can't digest or absorb. Unlike other food components, such as fats, proteins or carbohydrates — which your body breaks down and absorbs — fiber isn't digested by your body. Human Nutrition - Biology Encyclopedia Human Nutrition Nutrition is a broad topic that includes the components of food, food intake, what happens to the food once in the body, elimination of the residue, and how nutrients are related to health and disease. See more. A good d.. The strongest engineering materials often incorporate fibers, for example carbon fiber and ultra-high-molecular-weight polyethylene.. Fiber: The parts of fruits and vegetables that cannot be digested. Fiber helps the... 2. These bHLH (basic helix loop helix) transcription factors act sequentially in myogenic differentiation. Motor proteins, which are powered by ATP, are specialized proteins that actively move microtubules. Whitney came to the general definition of a fiber bundle from his study of a more particular notion of a sphere bundle, that is a fiber bundle whose fiber is a … Fiber definition, a fine, threadlike piece, as of cotton, jute, or asbestos. Teen girls (14–18 years old) should get 25 grams of fiber per day and teen guys (14–18 years old) should get 31 grams of fiber per day. fiber synonyms, fiber pronunciation, fiber translation, English dictionary definition of fiber. Fiber is important for the digestive system and for cardiovascular health. Before using our website, please read our Privacy Policy. The leaf epidermis is composed of cells tightly locked together like pieces of a puzzle. It is indigestible and therefore passes directly through the digestive system. All Free. Definition noun, plural: fibres (1) (anatomy) Any elongated, thread-like structure, e.g. Definition noun, plural: fibres (1) (anatomy) Any elongated, thread-like structure, e.g. Views expressed here do not necessarily reflect those of Biology Online, its staff, or its partners. Carbohydrates are essential nutrients which include sugars, fibers, and starches.

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