Reactivity of biological molecules

Question 1

Disulfide bonds are formed in the presence of _______

Answer 1

an oxidizer

Question 2

Disulfide bonds are broken when __________

Answer 2

reduced

Question 3

True or false. Thiols are likely to perform hydrogen bonding?

Answer 3

False. The polarity difference between S and H make it not as likely.

Question 4

Tm =

Answer 4

Temp. at which 50% of the molecules are denatured/unfolded

Question 5

Cooperative process

Answer 5

The process is dependent on the state of the options available. For example, oxygen binding in hemoglobin. The affinity to the remaining three places increases when the first oxygen binds because there are fewer places to now bind.