Chapter 5 Quiz

Front 1

Which of the following Statements about covalently Bonded molecules is false?

Back 1

Opposing electrical charges hold the molecule together.

Front 2

H2O and CH4 are both examples of

Back 2

Molecules

Front 3

Which of the following statements about water is true?

Back 3

It contains two of the most common elements on Earth.
&
It is critical for many of the chemical processes found in living systems.
&
Polar substances that can form hydrogen bonds will dissolve in it.
&
Nonpolar substances like oils are not soluble in it.

Front 4

Hydrogen bonds and hydrophilic interactions are

Back 4

weak chemical bonds that hold separate molecules together.

Front 5

The molecule adenosine triphosphate (ATP) is most closely related to which class of
macromolecules?

Back 5

nucleic acids

Front 6

Which of the following represents a polymer of amino acids?

Back 6

Proteins

Front 7

The strongest chemical linkages are found in molecules in which atoms are held
together by ________ bonds

Back 7

Covalent

Front 8

Question 8
. Salt and sugar both dissolve well in water, but for different reasons. In the case of salt,
water molecules

Back 8

surround the separated ions because of their partial electrical charge.

Front 9

Which of the following is not an example of a compound that would fall into the
category of monomers?

Back 9

DNA

Front 10

In a phospholipid bilayer, the hydrophobic tails of the phospholipid molecules are
pointed outward so that they are in maximum contact with water

Back 10

False