Exam #4

Enzymes

100

What do enzymes do?

Speed up Reactions in living things

200

What is the name of the part of the enzyme where the substrate attaches?

Active Site

300

When enzymes change shape they are said to be what?

Denatured

400

What 3 letters do enzymes commonly end in?

"-ase"

500

What happens when an enzyme is denatured?

The enzyme changes shape and substrate can not attach

Chemical Reactions

100

What is/are the reactant(s) in the following chemical equation: C₆H₁₂O₆+ 6O₂ --> 6CO₂ + 6H₂O + ATP

C₆H₁₂O₆ and 6O₂ (Glucose and Oxygen)

200

Reactions that are classified as energy releasing reactions often release the energy as what?

Heat

300

The energy needed to start a reaction is called what?

Activation Energy

400

How do catalysts speed up reactions?

Lower the activation energy

500

What is the general name of substances that speed up reactions?

Catalysts

Macromolecules

100

Enzymes are which macromolecule?

Proteins

200

CHO in a 1:2:1 ratio

carbohydrates

300

monomer of a lipid?

fatty acid

400

monomer of a protein?

amino acid

500

What is the name of the bond that holds together the monomers of proteins?

Peptide Bonds

ATP

100

What does ATP stand for?

Adenosine Triphosphate

200

Which molecule is recycles during the ATP/ADP Cycle?

ADP

300

Which is like a fully charged battery?

ATP

400

Where does the energy stored in the bond between the second and third phosphate come from?

the food that an organism consumes

500

Where is ATP made? (organelle)

Mitochondria

Vocabulary

100

all of the chemical reactions that occur within a cell

metabolism

200

the amount of energy needed to make a chemical reaction happen

activation energy

300

substances that are produced by a chemical reaction

product

400

an energy carrying molecule used by cells

ATP

500

releases energy

exothermic