Atoms and Bonding
What are the three parts of an atom?
Protons, neutrons, electrons
Why does it hurt when you do a belly flop?
Surface tension of water
What are the four macromolecules?
Carbohydrates, proteins, lipids, nucleic acids
What is the job of an enzyme?
Speed up a chemical reaction.
Varies
What is a covalent bond?
A type of bond where atoms share electrons.
What is cohesion?
Water's ability to stick to itself
What is the monomer of a protein
amino acid
What deos the lock and key model represent?
Only a specific substrate fits a specific active site of an enzyme.
What is a synthesis reaction?
A reaction that bring two molecules together.
How are electrons used in Ionic bonding?
Electrons are given away to another atom.
How does water help organisms regulate temperature?
Animals sweat to help cool themselves down.
What macromolecules stor genetic information
Nucleic acids
What does it mean an enzyme is denatured?
It is destroyed/deformed.
What is a decomposition reaction?
A reaction that breaks a molecule down
Why do atoms bond together?
Electrons
Why is it important ice is less dense than water?
So ice floats and life can exist underneath it
Write what macromolecule goes with each example here: Fat, DNA, Enzyme, Glucose
Lipid, Nucleic acid, protein, carbs
What two factors affect enzymes the most?
pH and temperature
What is activation energy
The amount of energy it takes to start a reaction?
What type of bond keeps water molecules together?
Hydrogen bonds
Name two important properties of life and what they mean?
Answers vary
Which elements are found in all macromolecules?
Carbon, hydrogen, oxygen
What does an enzyme lower to speed up reactions?
Activation energy
What is an example of a real enzyme?
Lactase, etc