Explanation

Saturation occurs when all active sites of the enzyme molecules are fully occupied by the substrate.

At this point, adding more substrate doesn't increase the reaction rate, as the enzyme is working at its maximum capacity (Vmax).

Explanation

Tertiary structure refers to the 3D folding of a protein, stabilized by interactions like disulphide bonds, hydrogen bonds, and hydrophobic interactions.

Disulphide (S-S) linkages are covalent bonds formed between cysteine residues, specifically contributing to the protein's tertiary structure stability.

Explanation

Ethanol (C₂H₅OH) is oxidized to ethanoic acid (CH₃COOH) using oxidizing agents like acidified potassium dichromate (K₂Cr₂O₇).

This chemical reaction involves the gain of oxygen or loss of hydrogen, which defines oxidation.

Explanation

A matrix with m rows and n columns where m ≠ n is called a rectangular matrix.

A square matrix has m = n (same number of rows and columns).

Explanation

"Parted from" = general separation (physically or emotionally)

"Parted company with" = idiom meaning formal or complete separation (especially in relationships, jobs, ideas)

To part company with someone

Meaning: To separate from someone, either physically or in opinion.

Explanation

Explanation

The ion that is not a molecular ion is b) NH4+. 

A molecular ion is formed when a molecule gains or loses an electron, but NH4+ (ammonium ion)

It is not formed by removing an electron from a neutral molecule; it is formed by adding a proton (H+) to ammonia (NH3).

He+ (helium ion) is also not a molecular ion because it consists of only one atom.

Helium is a noble gas and does not readily form covalent bonds with other atoms to create a molecule. 

Explanation

The pressure of oxygen inside a bomb calorimeter is typically 20-40 atmospheres or 20-40 bar,

It is equivalent to 2026.5 to 4053 kPa or 2.0265 to 4.053 MPa.

This high pressure ensures complete combustion of the sample being tested. 

Explanation

The speed of sound is greater in solids because they have a higher density and elasticity compared to liquids and gases.

This allows sound waves to travel faster through solids

Due to the closer proximity of molecules and their stronger intermolecular forces, which facilitate the rapid transfer of vibrational energy. 

Explanation

The area of the parallelogram formed by two adjacent sides, A and B, with an angle θ between them is given by the formula: Area = |A||B|sin(θ).

This is equivalent to the magnitude of the cross product of the vectors A and B, which can be written as |A x B|.