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

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

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

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