Forms when atoms share a pair of electrons
is a polymer made of monomers called amino acids.
are nonpolar molecules that include fats, oils, and cholesterol which usually contain chains of carbon atoms bonded to oxygen and hydrogen atoms.
is a compound that releases a proton—a hydrogen ion (H+)—when it dissolves in water
the smallest basic unit of matter
Have a negative electrical charge
Use a pH chart to find the pH of the solution in picture 3.
Which carbohydrate is found in the cell walls of plant cells and is extremely rigid?
have a positive electrical charge
is a mixture of substances that is the same throughout—it is a homogeneous mixture
If the purple piece in picture 7 is an enzyme, what are the orange and blue pieces?
Structure and support , enabling movement, communication, and _____ are the functions of a protein.
Atom that has gained or lost one or more electrons
Which type of lipid is found in picture 5?
are found in very small amounts in your body, but you need them to survive.
amount of energy that will break a bond between two atoms.
_____ are a source of energy. They are more energy efficient than carbohydrates, but they are harder to break down.
Carbohydrates are composed of carbon, hydrogen, and oxygen. The ratio is one:_____:one respectively.
What part of the atom is labeled as 4 in picture 8?
What part of the atom is labeled as 3 in picture 8?
____ also helps plants transport water from their roots to their leaves.
Ionic bonds are weaker. (True/False)