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What are the four macromolecules?
Carbohydrates, Lipids, Proteins, and Nucleic acids
What kind of bond takes place between amino acids
peptide bond
What is the smallest basic unit of matter?
atom
What type of bond holds two water molecules together?
hydrogen bonds
Both animal fats and plant oils are made up of glycerol and
fatty acids
Identify this reaction: 6H2O + 6CO2 + sunlight → C6H12O6 + 6O2.
Photosynthesis
Chemical reactions that absorb more energy than they release are called
Endothermic
The activation energy needed for a chemical reaction is decreased by a
catalyst
What type of molecule is formed by linking amino acids?
proteins
Is a protein a monomer or a polymer?
polymer
What is a polymer?
a chain of smaller units called monomers bonded together.
What is the term for the substances that are changed during a chemical reaction?
reactants
What happens to enzymes if the pH and/or temperature changes?
They will denature and no longer function
What is adhesion and cohesion?
Cohesion-water sticking to water Adhesion water sticking to other molecules
Why is it important to aquatic animals that ice floats?
If ice did not float and water froze from the bottom up then the water would become too cold for them to be able to survive.
What is a polar molecule?
A molecule that has unequal areas of charge
