POB Review (Chapters 1-5)

Charles Darwin presented verifiable evidence that supported the view that life can arise by spontaneous generation.

Hydrophobic substances such as vegetable oil are:

About 25 natural elements are essential to life. Which four of these make up approximately 96% of living matter?

Which of the following types of cells use (DNA) as genetic material but do not have their DNA within a nuclear envelope?

Which of the following sequences represents the hierarchy of biological organization from least to the most complex?

Which of the following statements is false?

On food packages, to what does the term "insoluble fiber" refer?

The bonding of two amino acid molecules to form a larger molecule requires:

If a DNA sample were composed of 10% thymine, what would be the percentage of guanine?

The α helix and the β pleated sheet are both common polypeptide forms found in the secondary level of protein structure.

Which of the following properties or processes do we associate with living things?

The date of Exam #1 is:

When two atoms are equally electronegative, they will interact to form:

A form of regulation in which accumulation of an end product slows that process is called positive feedback.

The tertiary structure of a protein is the:

A carbonyl group can be best described as a carbon atom joined to an oxygen by a double covalent bond.

Once labor begins in childbirth, contractions increase in intensity and frequency until delivery. This is an example of:

Which of the following statements correctly describes geometric isomers?

Nitrogen is more electronegative than hydrogen. Which of the following statements is correct about ammonia (NH3)?

Which of the following explains most specifically the attraction of water molecules to one another?

A type of protein critical to all cells is organic catalysts called

Which of the following best describes the flow of information in eukaryotic cells?

What is the approximate atomic mass of an atom with 16 neutrons, 15 protons, and 15 electrons?

The lowest level of biological organization that can perform all the activities required for life is the

Which of the following describes any reaction that has reached chemical equilibrium?

Which of the following statements best summarizes the structural differences between DNA and RNA?

Water from a hot thermal vent contained a single-celled organism with a cell wall but no nucleus. It is most likely a:

A covalent chemical bond is one in which:

Which of the following indicates the number of protons in an atom's nucleus?

Which of the following statements concerning prokaryotic and eukaryotic cells is not correct?

There are 20 different amino acids. What makes one amino acid different from another?

All of the following statements are part of Charles Darwin's concept of natural selection except

Prokaryotes are classified as belonging to two different domains. What are the domains?

Evolution is biology's core theme that ties together all the other themes. This is because evolution explains

Buffers maintain a relatively constant pH when either acids or bases are added to them.

Which of the following statements is false for the class of biological molecules known as lipids?

Which of the following is a diverse group of hydrophobic molecules?

All of the following statements concerning saturatedfats are true except:

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by polar covalent bonds.

Enzymes are:

The slight negative charge of one water attracted to the slight positive charge of another water is:

What is the chemical mechanism by which cells make polymers from monomers?

Calcium has an atomic number of 20 and an atomic mass of 40. Therefore, a calcium atom must have

Water is able to form hydrogen bonds because the bonds that hold together the water molecule are polar covalent bonds.

What gives rise to the cohesiveness of water molecules?

Which of the following solutions has the greatest concentration of hydrogen ions [H+]?

Which of the following is (are) true of natural selection?

Which of the following solutions has the greatest concentration of hydroxyl ions [OH-]?

Ibuprofen (a drug used to relieve inflammation) is a mixture of two enantiomers; that is, molecules that:

Which of the following store and transmit hereditary information?

Why does ice float in liquid water?

Organic chemistry is a science based on the study of

Which of the following results from a transfer of electron(s) between atoms?

Different atomic forms of an element contain the same number of protons but a different number of neutrons are called:

Why are hydrocarbons insoluble in water?

Which branch of biology is concerned with the naming and classifying of organisms?

What is the term used for a protein molecule that assists in the proper folding of other proteins?

What is the maximum number of electrons in the 1s orbital of an atom?

Which of the following statements is false?

Van der Waals interactions are considered to be weak bonds.