Tag: constitutes of diet
Questions Related to constitutes of diet
A fat soluble vitamin group is
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$B _6$, E and K
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A, B, C, D and E
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A, D, E and K
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C, D, E and K
Which is not the function of vitamins
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Metabolism
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Digestion
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Growth
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None of the above
Animals do not synthesise ____________.
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Proteins
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Vitamins
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Glycogen
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Phospholipids
Which acid is a vitamin
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Malic acid
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Palmitic acid
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Formic acid
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Ascorbic acid
Multiple molecular forms of enzymes occurring within a plant system are known as ___________.
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Vitamins
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Co-enzymes
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Hormones
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Isohyets
Which of the following statements is not correct?
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Amino acids are a product of the digestion of proteins
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Vegetable fats contain enough vitamin A and D
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Pepsin is produced in the glands in the lining of the stomach
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Vitamin C is most plentiful in citrus fruits
- The end product of protein digestion is amino acids.
- The most common source of Vitamin C is citrus fruits.
- The stomach mucosa’s epithelial lining consists only of surface mucous cells, which secrete a protective coat of alkaline mucus. A vast number of gastric pits dot the surface of the epithelium, giving it the appearance of a well-used pincushion, and mark the entry to each gastric gland, which secretes a complex digestive fluid referred to as gastric juice. Chief cells—Located primarily in the basal regions of gastric glands are chief cells, which secrete pepsinogen, the inactive proenzyme form of pepsin. HCl is necessary for the conversion of pepsinogen to pepsin.
- Fish oil contains enough vitamin A and D.
Vitamins with some enzymes act as
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Co-enzyme
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Apoenzyme
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Holoenzyme
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Cofactor
Vitamins with some enzymes act as coenzyme. Coenzymes are organic non protein molecules that bind with the protein molecule (apoenzyme) to form the active enzyme (holoenzyme). A number of the water-soluble vitamins such as vitamins B$ _1$, B$ _2$ and B$ _6$ serve as coenzymes.
Vitamins with some enzymes act as
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Co-enzyme
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Apo-enzyme
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Holo-enzyme
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Co-factor
Co-factor is a non-protein chemical compound that is required for the protein's biological activity. These molecules are commonly enzymes and co-factors can be helper molecules that assist in biochemical transformations such as vitamins.
Co-factors can be subdivided into either one or more inorganic ions , or a complex organic or metallo-organic molecule, called as a co-enzyme, most of which are derived from vitamins.
An inactive enzyme without the co-factor is called an apoenzyme while the complete enzyme with the co-factor is called as a holoenzyme.
The name vitamin was used for the first time by
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Funk
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Aristotle
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Eijikmann
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Hopkins
In 1911, Casimir Funk isolated a concentrate from rice polishings that cured polyneuritis in pigeons. He named the concentrate vitamin because it appeared to be vital to life and because it was probably an amine.
Organic nutrients that regulate physiological processes by serving as coenzymes are called
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vitamins
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trace elements
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minerals
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amino acids
Non-protein components of certain enzymes are called cofactors. If the cofactor is organic, then it is called a coenzyme. Coenzyme is relatively small molecules compared to the protein part of the enzyme and many of the coenzymes are derived from vitamins