Water, pH and Macromolecules
If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water?

be repelled by water
It will be attracted to water
It will form a membrane in water
It will act as a buffer and stabilize the pH

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
Which of the following statements about covalently bonded molecules is false?

The chemical bonds that hold the molecule together are relatively strong
Noncovalent bonds may also be present, especially if the molecule is large
Electrons are shared between the atoms that make up the molecule
Such molecules often result from the interaction of ionized atoms

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
Which of the following character does not apply to water?

The water molecule is asymmetric
All three atoms in the water molecule readily form hydrogen bonds
The water molecule readily forms hydrophobic interactions
The covalent bonds in water are highly polarized

ANSWER DOWNLOAD EXAMIANS APP