Q
will caustic soda damage aluminium
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
You May Like
The question "what vitamins are amino acids" contains a common misconception. Amino acids and vitamins are two distinct types of nutrients that the body requires for various functions. Amino acids are the building blocks of proteins and are essential for growth, tissue repair, and the production of enzymes and hormones. There are 20 standard amino acids, nine of which are considered essential because the human body cannot synthesize them. These include histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
Vitamins, on the other hand, are organic compounds necessary for normal metabolism and health. They are classified as either water-soluble (B-complex vitamins and vitamin C) or fat-solvable (vitamins A, D, E, and K). While some vitamins, like B-complex vitamins, play a role in protein metabolism and can influence amino acid levels indirectly, none of the vitamins are actually amino acids. However, one interesting connection between amino acids and vitamins is that some amino acids can be precursors to certain vitamins. For example, tryptophan, an essential amino acid, can be converted into niacin (vitamin B3) in the body. Another example is the conversion of the amino acid tyrosine into vitamin C under specific conditions.
In summary, while there are no vitamins that are amino acids, there are interconnections between these two nutrient groups, primarily through the conversion of certain amino acids into vitamins. Ensuring adequate intake of both vitamins and amino acids is crucial for maintaining optimal health.
A statement about polymers that is not true is that "All polymers are synthetic and man-made." Polymers are large molecules made of repeating structural units, and they can be either naturally occurring or synthetic. Natural polymers include proteins, which are polymers of amino acids, and DNA, which is a polymer of nucleotides. Cellulose, a major component of plants' cell walls, is another example of a natural polymer. Synthetic polymers, on the other hand, are human-made and include plastics such as polyethylene and polyvinyl chloride (PVC). The distinction between natural and synthetic polymers highlights the diversity of materials under the polymer category and their ranging sources and applications.
A statement about polymers that is not true is that "All polymers are synthetic and man-made." Polymers are large molecules made of repeating structural units, and they can be either naturally occurring or synthetic. Natural polymers include proteins, which are polymers of amino acids, and DNA, which is a polymer of nucleotides. Cellulose, a major component of plants' cell walls, is another example of a natural polymer. Synthetic polymers, on the other hand, are human-made and include plastics such as polyethylene and polyvinyl chloride (PVC). The distinction between natural and synthetic polymers highlights the diversity of materials under the polymer category and their ranging sources and applications.
Polymers soften primarily due to an increase in temperature which facilitates greater molecular mobility. At lower temperatures, polymer chains are relatively fixed and cannot slide past one another easily, making the material hard or rigid. Heating a polymer increases the kinetic energy of its molecules, eventually reaching a point where the thermal energy overcomes the forces holding the polymer's chains together. This process reduces intermolecular interactions, allowing the chains to move or slide past one another more freely, which results in the material becoming soft or even melting in some cases. Additives, known as plasticizers, can also be incorporated into polymers to reduce the intermolecular forces and make them softer at lower temperatures, enhancing flexibility without necessarily heating.
You May Like
Q&A
- •how to engrave name on resin
- •how to get epoxy into small cracks
- •why oxygen oxidizes ferrous iron of free heme
- •what are the chemical symbols for iron oxide
- •what does pigment represent
Popular Information
- •Application control of powder coating sand texture agent
- •China PVC Spot Market Price Decline (September 14-21)
- •DCM Shriram bets on value-added businesses to fund future growth
- •Nuberg EPC awarded 550 TPD sulphuric acid plant project in Czech Republic
- •Buy Gujarat Fluorochemicals, target price Rs 4270: ICICI Securities