Atoms, Ions and Molecule
Properties of Water
Carbon/Based Molecules
Chemical Reactions
Enzymes and Other
100
the smallest unit matter is called?
Atom
100
An attraction between a slightly positive hydrogen atom and a slightly negative, often oxygen or nitrogen is called
Hydrogen Bond
100
a compound that releases a proton a hydrogen ion H+
Acid
100
The activation energy needed for a chemical reaction is decreased by a
Catalyst
100
_________ are catalyst for chemical reactions in living things.
Enzymes
200
A particular type of atom that cannot be broken down into a simpler substance by ordinary chemical means.
element
200
The attraction among molecules of a substance is called
Cohesion
200
molecules of carbon, hydrogen, and oxygen. They include starches and sugars are called _________
Carbohydrates
200
Which aspect of a chemical reaction is affected by enzymes _________.
Rate
200

The specific reactants that an enzyme acts on __________

Substrates

300
An atom that has gained or lost one more electrons is called
ion
300
The attraction among molecules of differences substance is
Adhesion
300
Both plants and animals oils are made up of glycerol and
fatty acids
300
Atoms in molecules share pairs of electrons when they make
Convalent
300

If an atom loses its electron, will be more positive and negative?

Negative

400
Substances are changed into different substances when bonds break and form during
Chemical Reactions
400
A mixture of substances that is the same throughout
Solution
400
The four main types of carbon-based molecules in organisms are carbohydrates, lipids, nucleic acids and
Proteins
400
What gives water many properties that are important to living things?
Hydrogen Bonds
400

_________ are substances made by a chemical reaction.

Product

500
Forms when atoms share a pair levels of the bonded atoms is called ____.
Covalent bond
500
is a substance that is present in the greater amount and that dissolves another substance is called
Solvent
500
Is protein a monomer or a polymer, If not what is the monomer form of proteins?
Protein is a polymer, amino acids are the monomer form of proteins
500
The amount of energy that will break a bond between two atoms is ____________.
Bond Energy
500

Solutions that have a low H+ ion concentration are called ___________

Bases

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