UCI Bio 93 Midterm 2 Exam Questions with correct Answers
What is a metabolic pathway? - ✔✔A pathway that a molecule goes through, resulting in a specific
product.
What is metabolism? - ✔✔The totality of an organisms chemical reactions
Gibbs free energy - ✔✔Portion of a system that can perform work when temp and pressure are uniform
throughout the system.
What is a way to show change in free energy? - ✔✔
What does a negative Delta G mean? - ✔✔A process that is spontaneous
What does spontaneous mean? - ✔✔Means that a process will occur.
What happens to the energy in a exergonic reaction? - ✔✔It is released
What happens to the energy in an endergonic reaction? - ✔✔It is consumed in the reaction.
True or False
A cell must have endergonic and exergonic reactions - ✔✔True
Is ATP Hydrolysis an exergonic or endergonic reaction? - ✔✔Exergonic
Mechanical and Transport work are what kind of reactions? - ✔✔Endergonic
Why does ATP hydrolysis release so much energy? - ✔✔All 3 phosphate groups ate neg. charged, so
there is mutual repulsion within all of them
, What do enzymes do? - ✔✔Lower energy barriers to drive chemical reactions
What does the suffix -ase usually mean? - ✔✔An enzyme
How does an exergonic energy profile look like? - ✔✔
Enzymes are biological ___________ - ✔✔Catalysts
What is the site of cellular respiration in all eukaryotic cells? - ✔✔Mitochondria
In Biology, what is another word for the addition of electrons to a substance? - ✔✔Reduction
In Biology, what is another word for the loss of electrons to a substance? - ✔✔Oxidation
What is cellular respiration? - ✔✔Catabolic reactions used to generate ATP
Where does glycolysis happen? - ✔✔In the cytosol
What is glycolysis? - ✔✔The breaking down of glucose into 2 molecules of a compound of pyruvate.
What happens in the citric acid cycle? - ✔✔The breakdown of glucose to carbon dioxide is completed.
What is stage 1 of cellular respiration? - ✔✔Glycolysis
What is stage 2 of cellular respiration? - ✔✔Pyruvate oxidation and citric acid cycle
What is stage 3 of cellular respiration? - ✔✔Oxidative Phosphorylation
What is a metabolic pathway? - ✔✔A pathway that a molecule goes through, resulting in a specific
product.
What is metabolism? - ✔✔The totality of an organisms chemical reactions
Gibbs free energy - ✔✔Portion of a system that can perform work when temp and pressure are uniform
throughout the system.
What is a way to show change in free energy? - ✔✔
What does a negative Delta G mean? - ✔✔A process that is spontaneous
What does spontaneous mean? - ✔✔Means that a process will occur.
What happens to the energy in a exergonic reaction? - ✔✔It is released
What happens to the energy in an endergonic reaction? - ✔✔It is consumed in the reaction.
True or False
A cell must have endergonic and exergonic reactions - ✔✔True
Is ATP Hydrolysis an exergonic or endergonic reaction? - ✔✔Exergonic
Mechanical and Transport work are what kind of reactions? - ✔✔Endergonic
Why does ATP hydrolysis release so much energy? - ✔✔All 3 phosphate groups ate neg. charged, so
there is mutual repulsion within all of them
, What do enzymes do? - ✔✔Lower energy barriers to drive chemical reactions
What does the suffix -ase usually mean? - ✔✔An enzyme
How does an exergonic energy profile look like? - ✔✔
Enzymes are biological ___________ - ✔✔Catalysts
What is the site of cellular respiration in all eukaryotic cells? - ✔✔Mitochondria
In Biology, what is another word for the addition of electrons to a substance? - ✔✔Reduction
In Biology, what is another word for the loss of electrons to a substance? - ✔✔Oxidation
What is cellular respiration? - ✔✔Catabolic reactions used to generate ATP
Where does glycolysis happen? - ✔✔In the cytosol
What is glycolysis? - ✔✔The breaking down of glucose into 2 molecules of a compound of pyruvate.
What happens in the citric acid cycle? - ✔✔The breakdown of glucose to carbon dioxide is completed.
What is stage 1 of cellular respiration? - ✔✔Glycolysis
What is stage 2 of cellular respiration? - ✔✔Pyruvate oxidation and citric acid cycle
What is stage 3 of cellular respiration? - ✔✔Oxidative Phosphorylation
