Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
Define chemical reaction
|
A process that changes one set of chemicals into another set of chemicals
|
|
Explaine the changes in chemical reactions
|
Chemical reactions always involve changes in chemical bonds. The breaking of bonds, or the formation of new bonds.
|
|
Reactant
|
The elements or compounds that enter into the reaction
|
|
Products
|
Elements or compounds produced by a reaction
|
|
Explain how carbonic acid helps us get rid of CO2
|
Carbonic acid enables the bloodstream to carry CO2 to the lungs. (CO2 is not very soluble in water)
|
|
Describe how energy is released or absorbed in chemical reactions
|
Bonds Break - Energy is released
Bonds Form - Energy is absorbed or used. |
|
Contrast chemical reactions that release and absorb energy.
|
Reactions that release energy - spontaneous and fast
Reactions that absorb energy - need energy - slow |
|
Define activation energy
|
The energy needed to get a reaction started (lighting match to paper)
|
|
Explain the role of a catalyst
|
A substance that speeds up the rate of a chemical reaction (Because of slowness or have too high activation energy for living tissue)
|
|
Explain the purpose of enzymes
|
Enzymes are biological catalysts. They are proteins
They lower activation energy |
|
Carbonic anhydrase
|
speeds up CO2 reaction
|
|
Explain this statement
Enzymes are specific |
Enzymes - speed up only one type of reaction
Name is usually derived from the reaction speeds up. |