enviroment chem 1-3 Flashcards
how do we digest food
break down food into chemicals, the absorbed by blood to be transported
how are nutrients transported
in the blood
what are nutients?
chemicals, soluble, used for energy, growth, body building, and cell repair
what are the 2 main groups of nutrients
inorganic and organic
what makes a food organic
carbon base, or living or once was living
what are the 4 classes of organic
carbs, protein, lipids, vitamins
what makes food inorganic
non-living source, minerals
macromineral
requires 100mg per day or more
trace element
requires less than 100mg
where do humans get the nitrogen they need
from eating plants
what are fertilizers used for
giving plants nutrients they might be lacking
the 3 main elements in fertilizer are
nitrogen, phosphorus, potassium (npk) (or no pp)
what do the 3 main elements in fertilizer aid in
nitro: green leaves phos: root development pot: fruit/flower production
what are pesticides
controls population of pests
what are the 3 pesticides
herbicide, insecticide, fungicide
