Exam: IELTS

Definition: A symbol placed above a vowel to show that the vowel is pronounced for a longer duration or has a specific phonetic value.

Example: In the word 'fāther', the macron over the 'a' indicates that it is a long vowel sound.

Definition: The larger nucleus found in certain single-celled organisms, which manages the cell's everyday activities like metabolism and growth.

Example: In ciliate protozoans, the macronucleus plays a crucial role in regulating metabolic processes.

Definition: A type of substance that is needed in large amounts for the growth and health of living organisms, including proteins, carbohydrates, and fats.

Example: Proteins, carbohydrates, and fats are all important macronutrients that our bodies need to function properly.

Definition: A type of large cell in the immune system that can engulf and digest foreign substances like bacteria and viruses.

Example: Macrophages play a crucial role in the body's defense against infections.

Definition: Relating to a type of white blood cell that engulfs and digests cellular debris and pathogens.

Example: The macrophagic response is crucial for the immune system to fight infections.

Definition: A large scale that is often used to describe something that is extensive or significant in size or scope.

Example: The project was designed to operate on a macroscale, affecting thousands of people.

Definition: Referring to objects or phenomena that are large enough to be seen without the help of a microscope or other magnifying tools.

Example: The macroscopic view of the landscape revealed the vastness of the mountains and valleys.

Definition: In a way that can be seen or observed with the naked eye, rather than through a microscope or other magnifying tools.

Example: The changes in the ecosystem were macroscopically evident after the pollution incident.

Definition: A spot or area on the skin or in the eye that is different in color or texture from the surrounding area, often associated with certain medical conditions or anatomical features.

Example: The doctor examined the macula for any signs of disease.

Definition: Related to a specific part of the retina that is important for seeing fine details and colors clearly.

Example: The doctor explained that macular degeneration can affect a person's ability to read and recognize faces.