T1-3 Flashcards
What is a macro mineral
A mineral that your body needs 100mg or more A day to maintain health
What is a trace element?
A mineral that your body need 100mg or less a day to maintain health
What is an enzyme?
A special protein molecule that helps regulate chemical reactions in a living organism
What is a vitamin
A molecule that helps enzymes function in the body
What is a protein?
An organic nutrient made up of a chain of amino acids
What is a lipid?
An organic nutrient that does not dissolve in water
What is a carbohydrate?
An organic nutrient made of carbon, hydrogen, and oxygen
What is biological magnification?
When chemicals accumulate in the fatty tissues in large amounts in an organism
What is biological accumulation?
The process where chemicals accumulate in the tissues of organisms along the food chain
What is a herbicide?
A chemical used to control weeds
What is an insecticide?
A chemical used to control insects
What is a fungicide?
A chemical used to control moulds and fungi
What is a pesticide?
A chemical used to control pests
What does acidic mean?
To have a pH lower than seven and to turn litmus red
What does basic mean?
To have a pH over seven and to turn litmus blue
What is an acid
A chemical that produces an acidic substance
What is a base?
A chemical that produces a basic substance
What is acid precipitation?
Rain or snow that contains acid compounds from the air
What is an indicator?
A chemical that changes colour to indicate whether a substance is an acid or a base
What is litmus?
A mixture of plant compounds used as a chemical indicator
What is oxidation
A chemical reaction in which oxygen combines with other elements to create a new substance
What is a pH scale?
A scale that measures the acidity or alkalinity of a substance
What is pH paper?
Paper saturated with a chemical to show whether a substance is an acid or base
What is acid-base neutralization?
The combining of an acid and a base to produce salt and water
