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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

Starch and cellulose are polysaccharides but you can eat or digest starch and not the cellulose why?

Oh, dude, like, starch and cellulose are both polysaccharides, but our digestive enzymes can break down starch into glucose, which we can totally use for energy. Cellulose, on the other hand, is like the tough guy of the group - our enzymes can't really break it down, so it just passes through our system like, "See ya later, alligator!" So, yeah, that's why we can chow down on some fries but not on a salad made of pure cellulose.

What are the Three components of a DNA molecule?

A sugar (deoxyribose), a phosphate group, and a nitrogenous base (adenine, thymine, cytosine or guanine).

P, O, C, N, H, (and some associated metal ions, though not technically necessary to make up DNA).

How much vitamin c you need to take with glutathione to whiten my skin?

To achieve effective skin whitening, Glutathione should be combined with Vitamin C in the right dosage. They both work synergistically. Research suggests that Vitamin C enhances Glutathione levels in the body by helping to regenerate it and preventing its oxidation. According to dermatological research, 400mg to 500mg per day glutathione is good for the skin

For the best results, consider GLO-C Best Skin Whitening Pills. It contains 500mg of Glutathione and 100mg of Vitamin C, along with Alpha Lipoic Acid, which enhances the absorption Regular use can help improve skin tone, reduce pigmentation, and provide anti-aging benefits.

Is milk soluble in water?

Milk is mostly water, which is very polar. Sugar (sucrose) is also a rather polar molecule. So, polar compounds dissolve readily in polar solvents. That is why sugar easily dissolves in milk.

Are organic compounds flammable or combustible?

Organic compounds can be both flammable and combustible. Flammable materials ignite easily and burn rapidly at low temperatures, while combustible materials require higher temperatures to ignite and burn. The flammability and combustibility of organic compounds depend on their chemical structure, such as the presence of carbon-carbon or carbon-hydrogen bonds that can easily break and react with oxygen in the air.

What elements combine to make sand?

Well, darling, sand is made up of tiny little pieces of rock and mineral particles. These particles can come from a variety of sources, like quartz, feldspar, and even seashells. Mix it all together and voilà, you've got yourself some gritty goodness known as sand.

What is stearamide amp?

Well, darling, Stearamide AMP is a conditioning agent commonly used in hair care products to help soften and smooth the hair. It helps reduce static and frizz, making your locks look more fabulous than ever. So, if you want your hair to be as sleek as a catwalk model, keep an eye out for this ingredient on the label.

Why does catalase elute in a wider range of fractions than glucose oxidase does?

Catalase elutes in a wider range of fractions than glucose oxidase due to differences in their molecular weights, structures, and interactions with the chromatography resin. Catalase is a larger protein with a more complex structure, leading to varied interactions with the resin and resulting in a broader elution profile. Glucose oxidase, being smaller and less complex, interacts more specifically with the resin, leading to a narrower elution range. Additionally, differences in the hydrophobicity, charge, and binding affinity of the two enzymes also contribute to their distinct elution profiles.

Can iodine change the color of a protein?

Oh, dude, like totally! Iodine can change the color of a protein because it reacts with the amino acids in the protein, forming a complex that absorbs light and gives it a brownish color. It's like a science experiment gone wild, man. Just don't go around dyeing your protein samples for fun, okay?

In simple terms what is polyethylene glycol made of?

Oh, dude, polyethylene glycol is made of ethylene oxide and water. It's like when ethylene oxide and water decide to have a chemical party and polyethylene glycol is the cool result. So yeah, it's basically just ethylene oxide and water hanging out together in a molecular form.

Is glucose aliphatic or aromatic?

Glucose is an aliphatic compound. Aliphatic compounds are organic compounds that do not contain a benzene ring, and they are typically open-chain structures. Glucose is a simple sugar with a straight-chain structure consisting of six carbon atoms, twelve hydrogen atoms, and six oxygen atoms. Its aliphatic nature is evident in its structure, which lacks the alternating double bonds characteristic of aromatic compounds.

What would happen without photosynthesis?

Without photosynthesis, plants would not be able to convert sunlight into energy, leading to a lack of oxygen production and a decrease in food supply for both animals and humans. This would disrupt the entire food chain and ecosystem, ultimately leading to widespread environmental degradation and potentially mass extinction. Photosynthesis is crucial for maintaining the balance of gases in the atmosphere and supporting life on Earth.

When the actual free energy change of a reaction change in G has a numerical value of less than zero negative number what will happen?

When the delta G is negative the reaction is said to be spontaneous or in other words favorable. It also means the reaction is irreversible once full product concentration is reached.

If delta G is positive, the reaction is unfavorable thus can easily be reversed.

If it is zero it is at equilibrium.

Why is the xanthoproteic test for phenol negative?

I reckon the answer would be that phenol has a hydroxyl group (-OH) which is bonded to a phenyl ring. It yields the same positive result like tyrosine which has a hydroxyl group bonded to its phenyl ring.

What elements are present in butter?

The main elements present in butter in non-trace amounts are hydrogen, carbon, oxygen, nitrogen, and sulfur.

Other elements present in lower amounts include phosphorous, potassium, sodium, chlorine, zinc, iron, calcium, magnesium, and zinc. There are very small amounts of other elements present, including selenium and fluorine.

What is the freezing point of 'urine'?

Oh, dude, the freezing point of urine is around 32°F or 0°C. So, if you're ever in a situation where you need to know when your pee turns into a pee-sicle, there you go. Just make sure you're not planning any weird experiments with it, okay?

What parts of the nucleotides make up the rungs of the ladder?

In DNA, the actual nitrogenous base rings make up the "ladder" while the "sides" are made from alternating deoxyribose and phosphate groups.

The number of bonds for each carbon atom in a structural formula is?

The number of bonds for each carbon atom in a structural formula is typically four. Carbon atoms can form single, double, or triple bonds with other atoms, but they typically form four bonds in organic compounds.

Why are there so many kinds of protein?

Proteins are made up of 20 different amino acids, which can be arranged in countless sequences. This diversity in amino acid sequences allows for a wide variety of protein structures and functions. Additionally, proteins can undergo post-translational modifications, further increasing the number of possible protein variations. The vast array of proteins in living organisms is essential for carrying out the multitude of biological processes necessary for life.

What is the difference between a fat and a wax?

Chemically, a wax is a type of lipid that may contain a wide variety of long-chain alkanes, esters, polyesters and hydroxy esters of long-chain primary alcohols and fatty acids. They are usually distinguished from fats by the lack of triglyceride esters of glycerin (propan-1,2,3-triol) and three fatty acids.

Fats (and oils) are triglycerides (or triacylglycerols): they consist of glycerol combined with three fatty acid molecules. The fatty acids are linked to the glycerol by ester links.

Waxes are esters of an alcohol other than glycerol and a single long chain acid.

See related links for more information.

Are hydrocarbons in soluble in water?

Hydrocarbons by themselves are non polar, so they would not be soluble in water, which is a polar molecule. Some hydrocarbon molecules however can have parts (with oxygen, hydrogen, fluor or nitrogen) and interact with water molecules though hydrogen bonding, albeit with less efficiency than other molecules that are polar.

Why peptide bond is rigid and planar?

A peptide bond is rigid and planar due to the partial double bond character between the carbon and nitrogen atoms involved in the bond formation. This partial double bond restricts rotation around the bond axis, leading to a fixed planar structure. The resonance forms resulting from the partial double bond character also contribute to the stability and rigidity of the peptide bond.

What are false substrates?

False substrates are molecules that resemble the natural substrate of an enzyme but cannot be acted upon by the enzyme. They compete with the actual substrate for the enzyme's active site, inhibiting the enzyme's normal function. This can lead to a decrease in enzyme activity and disrupt biochemical pathways.