Enzymes
True or False: Enzymes are recycled in reactions.
True
The substance that enzymes act on is called a...
substrate
How will increasing the concentration of an enzyme effect the rate of a reaction?
it will increase
A molecule that transfers energy from the breakdown of food molecules to cell processes is...
ATP
What does ATP stand for?
Adenosine Triphosphate
Reactions with enzymes require (more or less) energy.
Less
Chemical reactions always involve breaking and forming...
chemical bonds.
Do all chemical reactions require an input of energy to begin?
Yes
How does ADP convert to ATP?
Adding a phosphate group
What is the purpose of ATP?
to carry/store energy for the cell
An enzyme and substrate fit together like what?
Lock and Key
All of the chemical reactions that involve energy in an organism are collectively called the organism's...
Metabolism
What happens when an enzyme changes shape?
the reaction slows down/ it does not work
How is energy released from ATP?
a phosphate is removed
What are the components of ATP?
ribose, adenine, 3 phosphates
Enzymes belong to this category of macromolecules.
Proteins
What determines whether or not a substrate will fit with an enzyme?
The SHAPE of the active site and the substrate.
Could life exist without enzymes?
No
Which types of macromolecules in the correct order, are used to provide ATP?
Carbs, lipids, proteins
Where is the majority of ATPs energy stored?
between the 2nd and 3rd phosphate
Enzymes are catalysts. What does this mean?
They speed up chemical reactions by using less energy.
What type of reaction occurred if the products have more energy than the reactants?
endothermic
If the temperature gets too high, what will happen to the enzyme? (Clue: What is it called when it changes shape?)
Denature/Denaturation
Does ADP or ATP store more energy?
ATP
What component(s) in the ATP cycle is recycled? NOT recycled?
ADP-recycled
energy and phosphates-not recycled