chapter two ticket stuff
This substance lowers the concentration of H+ when added to an aqueous solution
Acid
Which biological molecule is responsible for providing energy and structure?
Carbohydrates
Individual water molecules are held to one another by relatively weak
Hydrogen bonds
Which biological molecule stores energy, provides energy, and act as surroundings?
Lipids
Which component of an atom does not have a charge?
Neutrons
What is the most common element in your body?:
Oxygen
What are the four classes of large organic molecules important to life on Earth?:
carbohydrates, proteins, lipids, nucleic acids
This type of inhibition uses an inhibitor to bond to the active site and slow down the rate of a reaction.
competitive inhibition
This type of bond involves the sharing of electrons.
covalent
What is the term when water breaks apart?
dissociates
Transferring electrons between atoms in a polar covalent bond creates ions.
false
Which process uses water to break a large molecule?
hydrolysis
Which number on the periodic table tells you the number of protons plus neutrons?
mass number
Which lipid is responsible for the structure of cell membranes?
phospholipids
Which type of covalent bond results from the unequal sharing of electrons?
polar covalent
Which biological molecules uses amino acids as the building blocks?
proteins
Select the most complete explanation of what the pH scale measures
the concentration of hydrogen ions in a system
The bond in which bonded atoms share electrons is called:
the covalent bond
Identify the part of the atom that most determines the chemical properties of the atom.:
the number of electrons
The lower the pH number, the greater the H+ concentration of a solution
true