Unit 2: Chapter 7 Bacterial Metabolism Flashcards
(87 cards)
What is catabolism?
provides energy and the building blocks (e.g amino acids)
Breaks things down
Catabolic reactions are what type of reactions?
exergoinc
Release energy
What is anabolism?
uses energy and building block to build large molcules
builds things up
Anabolic reactions are what type of reactions?
endergonic
Utilize energy
An example of foods and them using canabolism and anabolism
Just a picture
What is the collison theory?
In order for a reaction to occur molecules have to collide and break in certian ways in order to break the bond
For the collison theory to occur, what do we need to happen?
3 things
- Frequent collison
- Collison should be energetic
- Orientation of the collison
What is activation energy?
The minimum energy required to start a chemical reaction
What helps lower the activation energy?
Enzymes
Allow it so that the minimum energy needed for the reaction to take place is lowered
What are enzymes made out of?
Amino acids
They are proteins
T or F: Enzymes are all the same shape
False; Enzymes all have unique shapes
What do enzymes have that help with binding substrates?
Active sites
What do the active sights help take care of in regards to the collison thoery?
Frequent collison and orientation
Are enzymes highly specific?
Yes; enzymes are highly specific in terms of what substrate they act upon
Advantages of the enzymes and substrates tight bond
It allows for it to bind tightly enough to where it puts stress on the bond and gives it that enegry
Many enzymes will end in _________
-ase
What are cofactors and coenzymes?
An additional non-protein molecule that is needed by many enzymes to help the reaction
What are coenzymes?
organic molecules such as vitamins
What do coenzymes function as?
They function as intremediate carriers of electrons or functional groups that are transferred during a chemical reaction
What are cofactors?
inorganic substances such as metal ions
Enzyme Mechanism
Name 4 steps
Picture with the steps of a substrate binding to an enzyme
ATP
Just a picture
ATP and ADP are constantly being ________
recycled
ATP is genereted by
the phosphorylation of ADP