BJU Biology CH.2 Review

The main purpose of carbohydrates for living things is for _____________.

Proteins are organic polymers consisting of chains of ____________.

the speed at which particles move is associated with __________.

An atom is classified by the number of _________ in its nucleus.

temperature is a measurement of __________.

Chemistry is ___________.

Crumpling a piece of paper

The organic compounds all contain the element ________.

___________ is the tendency of energy to spread out.

a(n) ___________ is a pure substance made of two or more chemically combined elements.

What three elements are found in every carbohydrate?

a compound held together by opposite electrical charges is a(n) ______________ compound.

in a solution, the substance that does the dissolving is called the ____________.

The smallest part of a covalent bond is a(n) ___________.

ice on a pond melting

Which of the following is true about enzymes?

what are the four main kinds of organic molecules found in living things?

A(n) __________ is the smallest individual part of an element.

which of the following is not a molecule?

Atoms are __________.

gasoline powering a car's engine

A key element for living things and one that can form up to four chemical bonds is __________.

Which of the following is not a smaller part of an atom?

__________ bonds occur between oppositely charged ions.

bonds between atoms _________.

The physical stuff that makes up everything in the universe is known as ___________.

_____________ is the motion caused by the collision between particles.

A chemical _____________ shows the reactants and the products involved in a reaction.

Covalent compounds form when atoms ________ electrons.

_________ is a substance that produces hydroxide ions in solution.

An ion is ___________.

the outer most electrons in an atom are called ________.

a(n) _____________ is a pure substance made of only one kind of atom.

A substance that decreases the activity of an enzyme is a(n) __________.

seawater is a solution of water, minerals, and gases. In a seawater solution the solute is ___.

Lipids include _________.

What distinguishes organic compounds from inorganic compounds?

a(n) _________ is a substance that produces hydrogen ions in solution.

Atoms are made of smaller particles including negatively charged __________.

A pure substance made of only one kind of atom is ________________.

Running a tree branch through a wood chipper.

a carton of milk turning sour

Covalent compounds form chemical bonds by sharing __________.