Science test 3.1 Flashcards
Food provides…
energy and building materials
Different types of food molecules, when reacting with…
oxygen, produce different amounts of energy.
The difference in the amount of energy that carbohydrates, proteins, and fats have the capacity to provide is due…
the difference in the arrangement and number of different types of atoms in the molecules.
Large food molecules are broken…
down through a chemical reaction called hydrolysis.
Organisms build up new molecules…
through a chemical reaction
These molecules are used for…
growth and repair
When food molecules are not used immediately, organisms can…
store them for short or long periods of time for energy or to be used as building materials.
Carbohydrates subunit
“Sugar” or Saccharide
Proteins subunit
“Amino Acids”
Fats subunit
“Fatty acids”
Carbohydrates formula
C6,H2,O6
Carbohydrates atoms
C,H,O
Proteins formula
C3,H7,O2,N2
Proteins atoms
C,H,O,N
Fats formula
C56,H110,O6
Fats atoms
C,H,O
Describe what an enzyme does to help digestion
Enzymes help speed up the breakdown of food molecules.
Describe the reaction we studied that breaks down food molecules
HYDROLYSIS
Describe the reaction we studied that builds up food molecules
dehydration synthesis- when two molecules combine by removing water
Metabolism
A chemical reaction in living things that involve breaking down food and building up new structures
Leucine
An essential amino acid subunit for proteins that must be eaten, not made by our body
Nitrogen Isotopes
Atoms
that have more mass for tracking, rarely found in nature
song/Dance:
break it down/build it up
