Exam: GRE (Verbal)

Definition: The process in which certain bacteria convert ammonia into nitrites and then into nitrates, which are forms of nitrogen that plants can use.

Example: Nitrification is an important step in the nitrogen cycle, helping to make nutrients available to plants.

Definition: A type of bacteria that helps convert ammonia into nitrates in the soil, playing a key role in the nitrogen cycle.

Example: Nitrifiers are essential for healthy soil as they help plants access nutrients.

Definition: To convert ammonia or its compounds into nitrates or nitrites, often through a biological process involving bacteria.

Example: Farmers often nitrify the soil to enhance its nutrient content for better crop growth.

Definition: Relating to bacteria that convert ammonia into nitrite and nitrate in the soil, playing a key role in the nitrogen cycle.

Example: Nitrifying bacteria are essential for healthy soil and plant growth.

Definition: A type of organic compound that includes a specific group of atoms known as the cyano radical, which is represented by the formula -CN.

Example: Nitrils are often used in the production of various chemicals and pharmaceuticals.

Definition: A chemical compound that contains the nitrite ion, which consists of one nitrogen atom and two oxygen atoms. It is often found in salts or esters derived from nitrous acid.

Example: Nitrite is commonly used in food preservation and as a color fixative in meats.

Definition: A harmful chemical substance that can be a yellow liquid or crystals, often used in making other chemicals and products.

Example: Nitrobenzene is used in the production of dyes and pharmaceuticals.

Definition: A type of material made from cellulose that has been chemically treated with acids, commonly used to create explosives, plastics, and other products.

Example: Nitrocellulose is often used in the production of smokeless gunpowder.

Definition: A colorless and odorless gas that makes up a large part of the air we breathe and is essential for life, found in many organic compounds and used in various industries.

Example: Nitrogen is a key component in fertilizers that help plants grow.

Definition: A type of enzyme found in certain bacteria that helps convert nitrogen from the air into ammonia, which can be used by plants.

Example: Nitrogenase is essential for the process of nitrogen fixation in many plants.