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Biochemistry

Biochemistry is the study of the structure, composition and chemical processes in all living organisms. It covers the structures and functions of various cellular components, including proteins, carbohydrates, nucleic acids, lipids, and other biomolecules.

8,065 Questions

What is the structure of a representative soap molecule?

A soap molecule typically consists of a long hydrophobic tail, composed of a carbon chain, and a hydrophilic head, which contains a charged group such as sulfate or carboxylate. When dissolved in water, soap molecules align themselves with the hydrophobic tails pointing inward and the hydrophilic heads outward, forming micelles that can trap dirt and oil to be washed away.

What is the rate limiting enzyme of the urea cycle?

it is Carbamoyl phosphate synthase 1 which does the following:

CO2 & NH3 -> Carbamoyl phosphate

don't forget the rate limiting enzyme is stimulated by N-acetylglutamate (NAG)

How is glutamine taken?

Glutamine is commonly taken as a supplement in powder form. It can be mixed with water or juice and consumed before or after a workout, or as directed by a healthcare provider. It is also found in some foods like meat, dairy, and plant-based sources.

Which amino acids other than tryptophan display fluorescent emission?

Tyrosine and phenylalanine are two other amino acids that can display fluorescence emission. Tyrosine's fluorescence is typically weaker than tryptophan's, while phenylalanine's fluorescence is even weaker.

Is there a new liquimax liquid vitamin?

Yes, there are new liquimax liquid vitamin products being introduced regularly by different companies and brands. It is advisable to check with your preferred health store or online retailers for the latest options available.

What would be the reaction of litmus paper if it was tested on fresh coconut oil?

Rancid oil turns blue litmus paper to red; red to red, hence, it is said to be acidic. Fresh coconut oil turns blue litmus paper to blue; red to red, hence it is neutral. However, it turns acidic when exposed to air causing the litmus paper to become red.

What is the function of aldolase in regulation of glycolysis?

Aldolase catalyzes the cleavage of fructose 1,6-bisphosphate into glyceraldehyde 3-phosphate and dihydroxyacetone phosphate in glycolysis. This step is irreversible and serves as a regulatory point in glycolysis, controlling the flow of metabolites through the pathway.

What happens if you freeze stone?

Freezing stone can cause it to expand and contract, potentially leading to cracks or fractures in the material. This is because water trapped in the stone can expand when frozen, putting pressure on the surrounding stone structure. In general, it is not recommended to freeze stone as it can damage the material.

Why monosaccharide D-glucose does not form an acetal in self -addition reaction?

Acetal formation is a characteristic of a cyclic sugar. and acetal is formed when a hemiacetals react with an alcohol.

If this hemiacetal group is sugar( glucose) and react with an alcohol to form an acetal ,it is known as glycoside.

the other compound may or may not be monosaccharide.so in its cycle form it can not form acetal due to instability in configuration .

What were some scientific discoveries in 1971?

In 1971, notable scientific discoveries included the identification of the first pulsar by Jocelyn Bell Burnell and Antony Hewish, the development of the first microprocessor by Intel, and the discovery of the first human retrovirus by Howard Temin and David Baltimore.

What does your breathe smell like?

if you dont wipe or dont shave it starts to stink. not wiping after using the bathroom will cause bacteria to form and not shaving will gather sweat. you should also think about wearing lose clothes from time to time so it airs out down there

How do cytochromes show the unity of life on Earth?

They are highly conserved in all most organisms that use oxidative phosphorilation. Some amino acids and polypeptide sequences vary, but cytochrome C is doing the same shuttling of electrons job in organism after organism. Thus we can be fairly certain that all these organisms sharing this cytochrome C have common ancestry.

Which gland is associated with the production of epinephrine and norepinephrine two hormones that are associated with s?

The adrenal glands are associated with the production of epinephrine and norepinephrine, which are both involved in the body's "fight or flight" response to stress. These hormones help prepare the body for intense physical activity by increasing heart rate, dilating airways, and mobilizing energy stores.

What is furious metal?

"Furious metal" is not a widely recognized genre or term in the music industry. It may refer to a style of music that is heavy, aggressive, and intense, typically associated with subgenres of heavy metal such as thrash metal or death metal that deliver fast-paced, furious performances.

What are the food sources of water?

Food sources of water include fruits and vegetables (such as watermelon, oranges, and cucumbers), dairy products (such as milk and yogurt), and soups and broths. Foods with high water content can contribute to your daily hydration needs.

What color will be produced by proline with ninhydrin?

When ammonia or primary and secondary amines are detected, a deep blue or purple color known as Ruhemann's purple is produced.

Ninhydrin can also be used to monitor deprotection in solid phase peptide synthesis (Kaiser Test). The chain is linked via its C-terminus to the solid support, with the N-terminus extending off it. When that nitrogen is deprotected, a ninhydrin test yields blue. Amino-acid residues are attached with their N-terminus protected, so if the next residue has been successfully coupled onto the chain, the test gives a colorless or yellow result.

What is the Ph of vitamin c?

The pH of vitamin C (ascorbic acid) in solid form is around 2.2 to 2.5. When dissolved in water, the pH of a vitamin C solution is around 3-4 due to its weakly acidic nature.

What tripeptide will give a positive xanthoproteic test?

Phenylalanine. When phenylalanine is subjected to a xanthoproteic test, it will produce a yellow solution due to the reaction of the aromatic ring with nitric acid, indicating the presence of phenyl group in the tripeptide.

What protein classes are not found as membrane proteins - identity markers or receptors or transport channels or enzymes or hormones?

Enzymes and hormones are protein classes that are not typically found as membrane proteins acting as identity markers, receptors, or transport channels. Enzymes catalyze chemical reactions inside cells, while hormones are signaling molecules released into the bloodstream to regulate various physiological processes.

What is the bond that exists between alanine and phenylalanine?

The bond that exists between alanine and phenylalanine is a peptide bond. Peptide bonds form between the carboxyl group of one amino acid (alanine) and the amino group of another amino acid (phenylalanine) during protein synthesis.

What is sub-classification of phospholipid?

Phospholipids are a class of lipids and are a major component of all cell membranes as they can form lipid bilayer.

The further classification if a s follows:

Most phospholipids contain a diglyceride,a phosphate group,and a simple organic molecule such as choline.

  1. Diacylglyceride structures
    • phosphatidic acid (phosphatidate) (PA)
    • phosphatidylethanolamine (cephalin) (PE)
    • phosphatidylecholine (lecithin) (PC)
    • phosphatidylserine(PS)
    • Phosphoinositides:
      • Phosphatidylinositol(PI)
      • Phosphatidylinositol phosphate(PIP)
      • Phosphatidylinositol bisphosphate(PIP2)
      • phosphatidylinositol triphosphate(PIP3)
  • Phosphosphingolipids
    • Ceramide phosphorylcholine(sphingomylin)
    • Ceramide phosphorylethanolamene
    • Ceramide phosphorylglycerol

Is vitamin water dairy free?

Yes, Vitamin Water is dairy-free. It is made from water, vitamins, and natural flavors, and does not contain any dairy ingredients such as milk or cheese.

What type of fat deposition increase risk for cardiovascular disease?

Abdominal deposits (beer belly) are the highest risk, and seem to be hereditary. However, any degree of obesity puts a person at high risk, regardless of where the weight is deposited. See below.

Only small amounts of enzymes are required for reactions within cells because enzymes are?

Enzymes are catalysts that speed up chemical reactions by lowering the activation energy required for the reaction to occur. This means that only small amounts of enzymes are required to facilitate reactions in cells efficiently. Additionally, enzymes can be reused multiple times, further reducing the need for large quantities.