WGU190 Introduction to Biology - Unit 1: Modules 1 2 & 3 Exam
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: Matter
Answer:
Any substance that has mass and takes up space
Q: 2 classes of matter
Answer:
biotic (living/have lived) abiotic (nonliving/never alive)
Q: The basic unit of matter
Answer:
the atom
Q: The atom is made up of:
Answer:
a dense nucleus surrounded by electrons
Q: Atoms join together and form:
Answer:
molecules
Q: Molecules consist of:
Answer:
at least two atoms held together by a chemical bond
Q: Macromolecules are:
Answer:
biologically important molecules AKA polymers
Q: Polymers are made by:
Answer:
combining smaller units called monomers (simpler macromolecules)
Q: Macromolecule example:
, Answer:
DNA (built of 4 kinds of monomers (nucleotides) strung together (polymerized) in
a sequence that codes for structure of proteins and other bio molecules.)
Q: Building blocks of a cell:
Answer:
when macromolecules form a membrane-bound sphere
Q: Two main types of cells:
Answer:
prokaryotes and eukaryotes
Q: Prokaryote characteristics:
Answer:
small and simple, they do not have any clearly defined compartments inside of
them
Q: Eukaryote characteristics:
Answer:
include membrane-bound organelles (can be complex)
Q: Organelle characteristics:
Answer:
compartments inside the cell that contain specific groups of macromolecules and
carry out specific cellular functions (i.e. the nucleus which encloses DNA within
the cell)
Q: Microorganisms:
Answer:
single-celled life forms
Q: Tissues are formed when:
Answer:
similar cells work together to fulfill the same detailed function
Q: Organs are formed when:
Questions and Answers with Verified Solutions | Latest 2026 Update
Q: Matter
Answer:
Any substance that has mass and takes up space
Q: 2 classes of matter
Answer:
biotic (living/have lived) abiotic (nonliving/never alive)
Q: The basic unit of matter
Answer:
the atom
Q: The atom is made up of:
Answer:
a dense nucleus surrounded by electrons
Q: Atoms join together and form:
Answer:
molecules
Q: Molecules consist of:
Answer:
at least two atoms held together by a chemical bond
Q: Macromolecules are:
Answer:
biologically important molecules AKA polymers
Q: Polymers are made by:
Answer:
combining smaller units called monomers (simpler macromolecules)
Q: Macromolecule example:
, Answer:
DNA (built of 4 kinds of monomers (nucleotides) strung together (polymerized) in
a sequence that codes for structure of proteins and other bio molecules.)
Q: Building blocks of a cell:
Answer:
when macromolecules form a membrane-bound sphere
Q: Two main types of cells:
Answer:
prokaryotes and eukaryotes
Q: Prokaryote characteristics:
Answer:
small and simple, they do not have any clearly defined compartments inside of
them
Q: Eukaryote characteristics:
Answer:
include membrane-bound organelles (can be complex)
Q: Organelle characteristics:
Answer:
compartments inside the cell that contain specific groups of macromolecules and
carry out specific cellular functions (i.e. the nucleus which encloses DNA within
the cell)
Q: Microorganisms:
Answer:
single-celled life forms
Q: Tissues are formed when:
Answer:
similar cells work together to fulfill the same detailed function
Q: Organs are formed when:
