Exam: Cambridge English: C1 Advanced (CAE)

Definition: A type of mineral that is not crystalline and can be seen through. It is usually colored and is made up of water and aluminum silicate. This mineral often forms in layers or shapes like stalactites.

Example: Allophane is often found in volcanic regions where it forms from the alteration of volcanic glass.

Definition: Relating to a variation of a sound in a language that does not change the meaning of a word.

Example: The allophonic variations of the phoneme can change the meaning of words in some languages.

Definition: Relating to a change in the shape and function of a protein, such as an enzyme, caused by the binding of a substance at a different site than the active one.

Example: The allosteric regulation of the enzyme allows for more precise control of metabolic pathways.

Definition: In a way that involves the regulation of a protein's activity through the binding of a molecule at a site other than the active site.

Example: The enzyme was regulated allosterically by the presence of a specific molecule.

Definition: A process in which the activity of a protein is changed by the binding of a molecule at a site other than the active site, leading to a change in its shape and function.

Example: Allostery plays a crucial role in the regulation of enzyme activity.

Definition: A type of organism that has four sets of chromosomes, two from each of two different species, which can occur in plants and some animals.

Example: The allotetraploid plant exhibited traits from both parent species, enhancing its adaptability.

Definition: A type of a chemical element that can exist in different forms, each with a unique structure and properties.

Example: Graphite and diamond are two different allotropes of carbon.

Definition: Referring to a type of substance that can exist in different forms or structures, especially in the case of elements that can have multiple physical forms.

Example: Carbon can exist in an allotropic form as both diamond and graphite.

Definition: The ability of a chemical element to exist in different forms or structures, particularly in solid form, where it can have various arrangements of atoms.

Example: Carbon exhibits allotropy, existing in forms such as diamond and graphite.

Definition: A type of biological sample that represents a variant of a specific kind, often used in immunology to refer to different forms of antibodies that can be recognized by the immune system of the same species.

Example: The researchers identified an allotype that differed from the holotype in several key characteristics.