Atoms
Water
Organic Compounds
Enzymes
Chemical reactions
100
What atoms are made of?
What are protons, neutrons and electrons
100
A bond that involves the transfer of electrons
What is an ionic bond
100
These include cugars and starches and often broken down as a source of chemical energy for cells
What are carbohydrates
100
Proteins that are the catalysts for chemical reactions
What are enzymes
100
When substances are changed into different substances by the breaking and forming of chemical bonds
What is a chemical reaction
200
An atom that has gained or lost an electron
What is an ion
200
This gives water its many properties that are important to living things
What is specific heat
200
Molecules that store gentic information and build proteins
What are nucleic acids
200
The specific molecules that an enzyme acts on
What are substrates
200
the substances formed by a chemical reaction
What are the products
300
A bond that shares electrons
What is a covalent bond
300
When water resists changes in temperature; it must absorb large amounts of heat energy to increase in temperature
What is high specific heat
300
Include fats and oils and can be broken down as a source of chemical energy for cells
What are lipids
300
A substance that decreases the activation energy for a reaction and increases the rate ofthe reaction
What is a catalyst
300
A chemical reaction that releases more enrgy than it absorbs
What is an exothermic reaction
400
Determines the types of element
What is the number of protons
400
An attraction between a slightly posive hydrogen atom and a slightly negative atom
What is a hydrogen bond
400
Have a large number structures and functions; needed for things like muscle movement and transporting oxygen in the blood
What are proteins
400
The additional energy needed for chemical reactions to take place
What is activation energy
400
The amount of energy needed to break a bond or the energy relased when a bond forms
What is bond energy
500
When the outermost energy level is filled
What is a stable atom
500
the attraction among molecules of different substances
What is adhesion
500
The molecules that make up a polymer
What are monomers
500
Model used to describe an enzyme binding to a substrate
What is the lock-and-key model
500
The chemical reaction that absorbs more energy than it releases
What is an endothermic reaction
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