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TOP
NewmanEllis
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Industry info
Wiki
Q&A
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Q
does any amino acid have aromatic amine
NewmanEllis
GroverHodgson
Release Time:
August 18, 2024, 11:40 AM
Answer No amino acid in the standard genetic code features an aromatic amine as part of its side chain. Aromatic amines contain an amino group attached directly to an aromatic ring. However, amino acids like phenylalanine, tyrosine, and tryptophan do contain aromatic rings in their side chains, but these rings are not directly bonded to amino groups in the molecules’ structures. The distinction is crucial: aromatic rings contribute significantly to the biochemical properties and functions of these amino acids, such as UV absorbance for tyrosine and tryptophan and structural rigidity, but the absence of an aromatic amine functionality means their chemistry and interactions are different from what an aromatic amine would entail. Therefore, while aromaticity is a key feature of some amino acids, the presence of an aromatic amine group specifically is not.
0
Q
a production of amino acids under possible primitive earth conditions
NewmanEllis
BennettHutt
Release Time:
August 18, 2024, 10:18 AM
A hallmark experiment simulating primitive Earth conditions to produce amino acids was performed by Stanley Miller and Harold Urey in 1952. They mimicked the ancient Earth’s atmosphere with a mixture of water, hydrogen, methane, and ammonia and subjected it to electrical sparks to simulate lightning. This resulted in the formation of organic compounds, including amino acids, which are the building blocks of proteins. This experiment suggested that organic molecules necessary for life could form under the conditions thought to prevail on the early Earth. However, the exact composition of Earth’s early atmosphere is still debated, and alternative scenarios for the origin of life’s building blocks, including extraterrestrial sources via meteorites, are being explored. Nonetheless, the Miller-Urey experiment underscored the plausibility of abiogenic synthesis of life’s components, offering insights into the chemical origins of life.
0
Q
does krebs cycle produce amino acids
VerneTout
NewmanEllis
Release Time:
August 17, 2024, 11:12 AM
The Krebs cycle, also known as the citric acid cycle or tricarboxylic acid (TCA) cycle, is a key metabolic pathway that plays a crucial role in cellular respiration. Its primary function is to generate energy in the form of adenosine triphosphate (ATP), and it does so by converting acetyl-CoA derived from carbohydrates, fats, and proteins into carbon dioxide and NADH/FADH2, which are then used in the electron transport chain to produce ATP. While the Krebs cycle itself does not directly produce amino acids, it is intricately linked to amino acid metabolism. Certain intermediates of the Krebs cycle, such as α-ketoglutarate and oxaloacetate, can serve as precursors for the synthesis of amino acids. For example, α-ketoglutarate is a precursor for the synthesis of glutamate, which can then be used to make other amino acids. Thus, while the Krebs cycle’s primary function is energy production, it indirectly supports amino acid synthesis through its intermediates.
0
Q
a b c d amino acids
NewmanEllis
DonnaDulles
Release Time:
August 16, 2024, 6:09 AM
It appears there might be some confusion in your query as “[a b c d amino acids]” doesn’t directly specify which amino acids you’re referring to. However, I’ll provide an overview of amino acids and then discuss four common examples (Alanine, Cysteine, Aspartic Acid, and Lysine) that could potentially correspond to your letters a, b, c, and d. Amino acids are organic compounds that combine to form proteins. They are the building blocks of life and play critical roles in various biological processes. There are 20 standard amino acids, each with unique properties. They can be classified into essential (must be obtained through diet), non-essential (produced by the body), and conditionally essential (required under certain conditions). Alanine (a): This non-essential amino acid is involved in the metabolism of glucose and is crucial for energy production. It’s also used in the synthesis of proteins and has a simple structure, making it one of the most a...
0
Q
is rubber a network polymer
EltonHamilton
NewmanEllis
Release Time:
August 13, 2024, 5:22 AM
Rubber is indeed a type of network polymer. Network polymers, also known as cross-linked polymers, form three-dimensional structures where chains are interconnected through covalent bonds. Natural rubber, derived from the latex sap of the rubber tree, consists primarily of long chains of polyisoprene. These chains can link together, forming a complex network that gives natural rubber its unique properties, such as elasticity and strength. Synthetic rubbers, like styrene-butadiene rubber, are also network polymers created by chemically cross-linking polymer chains. Cross-linking improves heat resistance, durability, and other mechanical properties, making rubber ideal for applications such as tires, seals, and gaskets. Overall, the network structure of rubber is crucial for its performance in various industrial and consumer products.
0
Q
is ferric sulfate a polymer
NewmanEllis
AllenPitman
Release Time:
August 12, 2024, 2:09 PM
Ferric sulfate, represented chemically as Fe2(SO4)3, is not considered a polymer. Polymers are large molecules composed of repeating structural units (monomers), connected by covalent bonds. Ferric sulfate, however, is an ionic compound composed of ferric (Fe3+) ions and sulfate (SO4^2-) ions. In its solid state, ferric sulfate forms a crystalline structure, not a chain of repeating units like in polymers. Instead, it is classified as a salt, typically used in water and wastewater treatment for flocculation and as a coagulant. While both salts and polymers are important in various industrial applications, their chemical properties and structure are fundamentally different.
0
Q
how to clean an epoxy surfboard
FannyHill
NewmanEllis
Release Time:
August 5, 2024, 5:27 AM
To clean an epoxy surfboard, first rinse it with fresh water to remove any salt and sand. Avoid using harsh chemicals that can damage the epoxy resin. Instead, use a mild soap or a specially formulated surfboard cleaner. Apply the soap with a soft sponge or cloth to gently scrub the surface, paying extra attention to areas with wax or stains. Rinse thoroughly with fresh water again. For tough wax removal, place the board in the sun briefly to soften the wax, then use a plastic wax comb or credit card edge to scrape it off gently. After cleaning, dry the surfboard with a soft towel to prevent water spots. Avoid exposing the board to direct sunlight for prolonged periods to prevent damage to the epoxy resin. Regular cleaning after each use will maintain your surfboard’s performance and longevity.
0
Q
can you polish satin polyethylene
EdwiinBeaufort
NewmanEllis
Release Time:
August 1, 2024, 9:28 PM
Polishing satin polyethylene can be quite challenging due to its low surface energy and resistance to adhesion. Typically, satin finishes are designed to reduce glare and hide imperfections, and attempting to polish this type of surface to a high gloss can be difficult and often ineffective. However, if you aim to slightly enhance the sheen, you might consider using a mild plastic polish designed for polyethylene, applying it with a soft, lint-free cloth in gentle, circular motions. Be warned, aggressive polishing or using harsh chemicals can damage the surface. It’s also essential to test any product on a small, inconspicuous area first to ensure it doesn’t adversely affect the material. In general, for best results and to avoid damaging the surface, it’s advisable to maintain the original finish of satin polyethylene and clean it with appropriate, non-abrasive cleaners.
0
Q
how do bugs react to resin
NewmanEllis
AugusSinclair
Release Time:
July 31, 2024, 1:03 PM
Bugs react to resin in various ways, primarily depending on the type of resin and the nature of the insect. For instance, tree resins are known to have antimicrobial properties, which can deter some bugs or kill microbes that could harm the trees. Certain insects, like bark beetles, might get trapped in sticky resin while trying to burrow into trees, eventually becoming fossilized as amber if the conditions are right. However, some insects, like solitary bees, intentionally use resin to construct and line their nests due to its antimicrobial properties, which protect their offspring from fungal infections or bacterial growth. This showcases the dual nature of resin as both a protective agent for plants and a material utilized by some insects for survival. Overall, the interaction between bugs and resin varies widely, with resin acting as a deterrent, a deadly trap, or a beneficial building material depending on the circumstances.
0
Q
is 500ml enough resin
LesleyFlynn
OpheliaHarper
Release Time:
August 3, 2024, 2:13 AM
The sufficiency of 500ml of resin depends heavily on the intended use and scale of your project. For small-scale crafts, jewelry making, or minor repairs, 500ml should be ample to cover several small projects or a few medium-sized ones. This amount is popular among hobbyists for its versatility and cost-effectiveness. However, for larger endeavours such as table coatings, large artwork pieces, or significant DIY projects, 500ml may not suffice, and you might require more. It is essential to calculate the volume of resin needed based on the size and depth of your project, considering that resin coverage is typically measured in square footage per gallon (or liter) at a specific thickness. Planning and estimation will help prevent running out mid-project. It’s always better to have a little extra than not enough, considering the mixing and curing properties of resin.
0
NewmanEllis
Release Time:
July 31, 2024, 12:22 PM
The sufficiency of 500ml of resin depends heavily on the intended use and scale of your project. For small-scale crafts, jewelry making, or minor repairs, 500ml should be ample to cover several small projects or a few medium-sized ones. This amount is popular among hobbyists for its versatility and cost-effectiveness. However, for larger endeavours such as table coatings, large artwork pieces, or significant DIY projects, 500ml may not suffice, and you might require more. It is essential to calculate the volume of resin needed based on the size and depth of your project, considering that resin coverage is typically measured in square footage per gallon (or liter) at a specific thickness. Planning and estimation will help prevent running out mid-project. It’s always better to have a little extra than not enough, considering the mixing and curing properties of resin.
0
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