Generate Quiz 68E42308A2D3C

Enzymes that originate from the same organism and catalyze the same reaction but differ from one another chemically and physically are known as isoenzymes.

Many amino acids condense to form peptide bonds, which are the building blocks of a peptide bond. Many peptide bonds that condense to form chains make up peptide chains. The primary structure of amino acids is their sequence, while the secondary structure is the hydrogen bonds that bind them together. The tertiary structure is made up of different peptide bonds that join together to form chains.

The more substrate there is, the more likely it is that it will collide with the enzymes’ active sites, increasing the rate of enzyme action. As a result, enzyme activity and substrate concentration are directly correlated.

Since the “substrate” is joined to the enzyme at a particular location to be broken down, Option D is accurate.

Amino acids are the building blocks of proteins, and only two of the twenty amino acids that are available contain sulfur.

Vitamin B3 is a cofactor of NAD. A cofactor is a metallic ion or non-protein chemical that is necessary for an enzyme to function as a catalyst.
Vitamin B3, also known as niacin, is soluble in water.

Condensation polymerization involves the removal of H2O molecules in order to join two molecules.

It is a disaccharide made up of one galactose and one glucose unit joined by a β-(1→4) glycosidic bond.

Yeast contains an enzyme called zymase, which breaks down glucose into carbon dioxide and ethanol.

The non-protein part of a conjugated protein is called the prosthetic group. The structure and functionality of the protein depend on this tightly bound molecule. Prosthetic groups can be any kind of molecule, including organic molecules like hemoglobin’s heme or metal ions. They are essential to the overall function of the protein and frequently directly contribute to its catalytic activity or ligand binding.

Purifying a mixture of CO and H2 gas (collectively referred to as water gas), compressing it at 200 atm, and then passing it over a heated catalyst at 200°C is how methanol is prepared industrially. ZnO and CrO3 are combined to create the catalyst in the reaction chamber. Methanol is created by the condensation of methanol vapors. Option D is the right one.

d) Over 10,000: The most accurate statement is this one. The molecular masses of proteins are usually larger than 10,000. The molecular masses of many common proteins range from tens to hundreds of kilodaltons (kDa), or thousands of daltons.

Reason: Depending on how much the products of an enzyme reaction differ from the reactants, most enzyme reactions are reversible.

Polyacrylonitrile (PAN), also known as polyvinyl cyanide or Creslan 61, is created when acrylonitrile monomers combine. Its formula is (C3H3N)n. This synthetic resin is utilized in the production of clothing, furnishings, and carbon fibers.

A polypeptide bond is created when multiple peptide bonds bind several amino acids together. Therefore, a polypeptide is a peptide with 10,000 amino acids. Therefore, choice C is the right one.

A chemical element is said to be allotropic if it exists in two or more forms, each of which may have a different atom arrangement in crystalline solids.

It is a known fact that Mg+2 ions activate phosphatase enzymes. Option B is therefore the right choice.

Covalent peptide bonds, which are created when the carboxyl group (-COOH) of one amino acid and the amino group (-NH2) of another amino acid condense and remove a water molecule, are what hold the amino acids in proteins together.

The compound (and its soluble impurities) become less soluble as the solution cools, the solution fills with the desired compound, and the compound starts to crystallize. Thus, the solvent and any soluble contaminants are eliminated from the desired crystals when the solution is removed from them.

Long chains of amino acids make up proteins.The lengthy chains of amino acids coil around one another to form a spiral known as a helix, which can be left-handed or right-handed. The -NH groups of one spiral create hydrogen bonds with the C=O of the other spiral in the right-handed helix.

The six codons UUA, UUG, CUU, CUC, CUA, and CUG code for the amino acid leucine.

Under neutral circumstances, an intermediate value is used. Thus, amino acids generate NH3+ and COO-zwitter ions under those conditions.

One of the preservatives used to keep biological specimens alive is formalin. Biological specimens are preserved using formalin. Thirty to forty percent of the water in methanol or formaldehyde is formalin.

WH Carothers proposed classifying polymers according to their formation process in 1929. When a small molecule is removed during condensation polymerization, the monomers are joined together. In general, they have an ionic nature.

Additionally, during polymerization, the monomers form double bonds and are joined together without being separated.

Plastics, automotive paints, and water-based, weather-resistant paints are all made with acrylic resins. Acrylonitrile, acrylic acid, and methyl methacrylate are the common monomers. In order to create lengthy chains of addition polymers, the monomers in each of these have double bonds. Option C is therefore the right response.

The monomer structures are displayed below:

The big organic molecule in chlorophyll is called a porphyrin, and the central ion is magnesium.