chapter two ticket stuff

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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


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