WGU C190 Intro to Biology - Unit 1
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Abiotic - CORRECT ANSWER - Non-living, may be within or made by a living
organism.
Biotic - CORRECT ANSWER - Living. Matter is considered ______ if it was ever alive at
some point in time
Atom - CORRECT ANSWER - Smallest level. The basic unit of matter. Consists of a
dense nucleus surrounded by electrons.
Molecule - CORRECT ANSWER - Second level. A chemical structure consisting of at
least two atoms held together by a chemical bond.
Macromolecule - CORRECT ANSWER - Third level. Biologically important molecules
that are technically polymers. Example: DNA.
Cell - CORRECT ANSWER - Fourth level. The fundamental unit of life. Essentially a tiny
droplet of water and other molecules enclosed by a fluid "skin" or membrane. The smallest and
simplest entity that possesses all the characteristics of life.
Organelle - CORRECT ANSWER - Fifth level. Compartments inside the cell that contain
specific groups of macromolecules and carry out specific cellular functions. it encloses the DNA
within the cell.
Microorganism - CORRECT ANSWER - Sixth level. Single-celled life form. Consists of
just one cell and include unicellular organisms such as bacteria and protists.
UPDATED ACTUAL Exam Questions and
CORRECT Answers
Abiotic - CORRECT ANSWER - Non-living, may be within or made by a living
organism.
Biotic - CORRECT ANSWER - Living. Matter is considered ______ if it was ever alive at
some point in time
Atom - CORRECT ANSWER - Smallest level. The basic unit of matter. Consists of a
dense nucleus surrounded by electrons.
Molecule - CORRECT ANSWER - Second level. A chemical structure consisting of at
least two atoms held together by a chemical bond.
Macromolecule - CORRECT ANSWER - Third level. Biologically important molecules
that are technically polymers. Example: DNA.
Cell - CORRECT ANSWER - Fourth level. The fundamental unit of life. Essentially a tiny
droplet of water and other molecules enclosed by a fluid "skin" or membrane. The smallest and
simplest entity that possesses all the characteristics of life.
Organelle - CORRECT ANSWER - Fifth level. Compartments inside the cell that contain
specific groups of macromolecules and carry out specific cellular functions. it encloses the DNA
within the cell.
Microorganism - CORRECT ANSWER - Sixth level. Single-celled life form. Consists of
just one cell and include unicellular organisms such as bacteria and protists.
