Biology Final Exam

The atomic mass of the atom in the figure is:

12

How many molecules are present in one mole of C6H12O6?

6.02 x 10^23 molecules

The type of bond illustrated in the accompanying figure is:

A covalent bond

How does a prokaryotic cell differ from a eukaryotic cell?

A prokaryotic cell has no membrane-enclosed organelles

Which statement best describes cell theory?

All living organisms are composed of basic units called cells

In an experiment, the control group:

Closely matches the experimental group

In all organisms, hereditary information is encoded within ___________ molecules.

DNA

During oxidation an atom, ion or molecule ________.

Loses electrons and becomes positively charged

Which of the following is NOT a characteristic of all living organisms?

Multicellularity

The chemical behavior of an atom is determined most directly by the:

Number of Valence Electrons

Chlorine has seven electrons in its valence shell. The number of electrons it must gain to complete its valence shell is:

One

Evolution is a process in which __________ change over time.

Populations

Which of the following statements concerning van der Waal interactions is FALSE:

They are very strong

An element is defined as a substance that.

cannot be broken into simpler substances by chemical reactions

Which sequence correctly lists the different levels of biological organization from simple to complex?

cells, tissues, organs, organ systems, organism