Miller and Levine Chapter 2 Review: The Chemistry of Life

Front

Which two types of particles are present in equal numbers in an atom, but not in an ion?

Back

protons and electrons

Front

What property of a water molecule allows hydrogen bonds to form among adjacent molecules?

Back

The polarity of the molecule, which involves a slightly negative oxygen atom and slightly positive hydrogen atoms.

Front

Household bleach has a pH between 12 and 13. Which of the following BEST describes the bleach solution?

Back

The solution is basic, meaning it has fewer hydrogen (H⁺) ions than hydroxide (OH^–) ions.

Front

What best describes the relationship between starch and glucose?

Back

Starch is a polymer made of glucose monomers.

Front

How do any two types of amino acids differ from one another?

Back

the chemical structure of the R group in the molecule

Front

What is the effect of an enzyme on the energy of a chemical reaction?

Back

Enzymes decrease the activation energy of the reaction.

Front

Which molecular structure is unique to lipids compared to carbohydrates, proteins, or nucleic acids?

Back

a long chain made only of carbon and hydrogen atoms

Front

Which type of macromolecule has the function of storing and transmitting hereditary or genetic information?

Back

nucleic acid

Front

How do buffers in the blood affect the pH?

Back

Buffers prevent small amounts of acid or base from changing the pH of blood.

Front

What allows the three atoms in a water molecule to stay together?

Back

covalent bonds formed by shared electrons between atoms