Exam: IELTS

Definition: A chemical substance that has four chlorine atoms in each molecule.

Example: Tetrachloride is often used in industrial applications and chemical synthesis.

Definition: A type of antibiotic that is used to treat various infections and is derived from certain bacteria.

Example: The doctor prescribed tetracycline to help clear up the infection.

Definition: A chemical compound that contains four fluorine atoms in each molecule.

Example: Tetrafluoride is often used in various industrial applications due to its unique properties.

Definition: A three-dimensional shape that has four flat surfaces, which are called faces.

Example: The tetrahedron is one of the simplest forms of a polyhedron.

Definition: Referring to an organism or cell that has four sets of chromosomes instead of the usual two sets.

Example: The tetraploid plant species can produce larger fruits than its diploid relatives.

Definition: An organism or cell that has four complete sets of chromosomes, which is more than the usual two sets found in diploid organisms.

Example: The scientist studied a tetraploid plant to understand its genetic variations.

Definition: Describing an organism that has four limbs or leg-like structures.

Example: The tetrapod animals include frogs, birds, and mammals.

Definition: A type of animal that has four limbs or legs, including creatures like amphibians, birds, and mammals.

Example: Frogs are examples of tetrapods that live both in water and on land.

Definition: A type of chemical compound made up of four connected pyrrole rings, often found in natural pigments like chlorophyll.

Example: Chlorophyll is a tetrapyrrole that plays a crucial role in photosynthesis.

Definition: A type of chemical compound that contains a specific group of atoms known as tetrazole, often used in scientific tests to measure metabolic activity in cells.

Example: The researchers used tetrazolium to assess the viability of the cells in their experiment.

Definition: A strong poison that affects the nervous system, commonly found in puffer fish and some newts, which prevents nerves from sending signals by blocking sodium ions.

Example: Tetrodotoxin is extremely dangerous and can cause paralysis if ingested.

Definition: A piece of written material, such as a book, article, or passage, that can be read or discussed.

Example: The teacher assigned a text for us to read before the next class.

Definition: To send a written message using a mobile phone or other electronic device.

Example: I will text you the details of the meeting later.