Biochemical Rxns and Energetics Q4

Question 1

What is the equation for free energy?

Answer 1

delta G= delta H - T(delta S) “get higher test scores”

Question 2

When will a reaction move forward?

Answer 2

When you have a negative delta G

Question 3

What are the five types of common biochemical rxns?

Answer 3

1- making and breaking carbon bonds
2- molecular re-arrangements
3- free radical rxns
4- group transfers
5- REDOX rxns

Question 4

What is the concern with superoxide ions in the body?

Answer 4

They are thought to be a factor in leading to the degeneration and destruction of neurons.

Question 5

What type of enzyme is used for phosphorylation?

Answer 5

Kinase.

Question 6

What type of enzyme is used for ubiquitination?

Answer 6

Ubiquitin ligase

Question 7

What type of enzyme is used for acetylation?

Answer 7

Acetyltransferase

Question 8

What type of enzyme is used for methylation?

Answer 8

Methyltransferase

Question 9

What type of enzyme is used for hydroxylation?

Answer 9

Hydroxylase.

Question 10

What is the function of magnesium when paired with ATP?

Answer 10

It functions to stabilize the ATP in an aqueous environment.

Question 11

When you have an increased concentration of ATP in a system, what affect will it have on the surrounding rxns?

Answer 11

It will give more energy just by being present and not taking place in the rxn.

Question 12

What type of transfer is taking place for ATP to provide energy?

Answer 12

Group transfer.

Question 13

What substance will activate protein kinase A?

Answer 13

cAMP

Question 14

Does oxidation require, or release energy?

Answer 14

You are loosing electrons so is releases energy.

Question 15

What are the 4 ways to transfer electrons?

Answer 15

1- Direct electron transfer.
2- Hydrogen atom transfer
3- Hydride ions
4- Combination with oxygen.