Chapter 6 Flashcards
What is an Enzyme?
Enzymes are protein units that speed up a chemical reaction by lowering the activation energy needed to start a metabolic process
Aerobic v Anaerobic respiration
Aerobic: Cellular respiration done in the presence of O2
Anaerobic Respiration: Cellular respiration done w/o O2
Oxidation
Transfer of electrons in a metabolic pathway
Metabolic Pathway
Converts one compound into another
Catabolism v Anabolism
Catabolism: Cuts big molecules into smaller ones
Anabolism: Turns a bunch of smaller molecules into a large one
Glycolysis
The break down of sugar into smaller components
6C—> 2 pyruvate
Fermentation and durham tubes
The reuse of electron carriers to continue making ATP in the absence of O2
A Durham tube is used to catch the gasses released from fermentation
What is energy defined as?
The ability to do work
What are the 3 types of pathways metabolism can follow?
linear, branching, cyclical
What is ATP and why is so important to the metabolic process?
Adenosine triphosphate and it provides the most amount of energy
3 ways to synthesize ATP
oxidative phosphorylation
photosynthetic phosphorylation
Chemoorganthrophs
How is glucose important in metabolism
Its the number one energy source for metabolic reactions
What are the bi products of fermentation?
Gas, Acid, Alcohol
Substrate
A molecule that binds to an enzyme to form an enzyme-substrate complex. Causes the enzyme to change shape
How is enzyme productivity influenced by environemental factors?
Temperature, pH, and nutrient availability determine how fast an enzyme will work.
