Chapter 2 Quiz (A&P1 Lecture)

Hydrogen bonds are strong attractions between nonpolar covalent molecules.

false

Like the carbohydrates, lipids have twice the hydrogen atoms as carbon and oxygen atoms in their molecular structures.

false

A solution containing equal number of hydrogen ions and hydroxide ions is:

neutral

In a molecule of oxygen gas, the atoms of oxygen share electrons equally with one another. This statement best describes a(n):

nonpolar covalent bond

The four most common elements, comprising 96% of the body's mass, are:

oxygen, nitrogen, hydrogen, carbon

Glucose and fructose are joined through dehydration synthesis to produce:

sucrose

How many electrons are in the outermost shell of an atom with 15 electrons?

5

What makes RNA a unique nucleic acid?

RNA contains a nitrogenous base known as uracil

What chemical binds free hydrogen ions in solution?

base

The transfer of an electron from sodium to chlorine is an example of:

chemical energy

A long-lasting high fever is a concern for denaturation of:

enzymes

Select the simplest sugar:

glucose

Atoms that satisfy the octet rule are said to be:

inert

The formation of a cation and an anion is indicative of a(n):

ionic bond

An atom of iron has an atomic number of 26. Which of the following is TRUE?

iron has 26 protons

What varies from one isotope of an element to another isotope of the same element?

mass number

Two or more atoms of the same element that are chemically combined are known as:

molecules

Hydrolysis of a polymer will produce:

monomers

Which of the following represents the strongest acidic solution?

pH 1

What type of polar covalent bond links amino acids?

peptide bond

Which of the following fatty acid chains has the most double bonds?

polyunsaturated fatty acid

In the following chemical reaction, what is NaCl + NaOH + HCl → NaCl + H2O

product

Which two organ systems work to correct pH imbalances in the body?

respiratory and urinary

The alpha-helix and beta-pleated sheet are characteristic of:

secondary protein structure

The strongest type of chemical bond is a covalent bond because electrons are shared between two or more nonmetals.

true