PCAT PCAT Meaning by word 018

the mathematical value of neutrons and protons in an atomic nucleus

chemical element with the symbol Ca which is used to make bones and teeth

a covalent bond where two pairs of electrons are shared

a federal agency in the Department of Health and Human Services established to regulate the release of new foods and health-related products

immunde deficiency disease that cannot be cured

clear fluid surrounding the brain and spinal cord

a rearrangement in the structures of atoms or molecules to form new products

crystalline form of a chemical element

the amount of effort or energy required to break an object

a thin layer of polymeric material surrounding a tablet, capsule, or pellet

substance that contains hydroxyl ions when dissolved in water

B vitamin needed for carbohydrate metabolism and the maintenance of mucus membranes

a non-protein substance, often a metal ion; that is needed for normal enzyme action

small drops of one liquid suspended in another

an infectious disease or agent (informal)

system that controls daily cycles such as blood pressure, sleep rhythms and hormone release

a semipermeable lipid bilayer

an involuntary action; an automatic response

containing as much of a substance as possible

able to cause a disease

the best

a red-brown gas which is poisonous

chemical element with the symbol N that is found in proteins and nucleic acids

stage of cell cycle where chromosomes separate and move towards opposite ends of the cell

type of infection or inflammation of membranes

the use of contraceptive methods to stop pregnancy; contraception

citrus X paradisi

a combination of reacting particles (atoms; molecules or ions) when they are at the top of the activation energy barrier between the products and the reactants

temperature at which a liquid turns to a solid at a particular pressure

fold in a membrane which forms a projection