WGU C190 — INTRODUCTION TO BIOLOGY 2025|2026 REAL EXAM 150 QUESTIONS AND CORRECT ANSWERS WITH RATIONALES

WGU C190 — INTRODUCTION TO
BIOLOGY 2025”2026 REAL EXAM
150 QUESTIONS AND CORRECT
ANSWERS WITH RATIONALES




Question 1

,Abiotic <answer>Non-living, may be
within or made by a living organism.

Question 2

Actin <answer>Filament in the
Cytoskeleton which has a prominent role
in cell movement, maintaining cell shape,
and connection to other cells, as well as
intracellular transport.

Question 3

Active Site <answer>The binding site on
enzymes. contains amino acids that both
bind the substrate and aid in its
conversion to product.

Question 4

,Active Transport <answer>moving
molecules against their concentration
gradient. This is a non spontaneous
process and requires the cell to do work
to move the ions "uphill" against the
concentration gradient. To do work, the
cell must expend energy and actively
move (pump)the ions.

Question 5

Adaptation <answer>A trait that helps
an organism survive and reproduce

Question 6

adaptive trait <answer>a heritable trait
that enhances an individuals fitness; an
evolutionary adaption

Question 7

, Adhesion <answer>The attraction
between water molecules and other
molecules.

Question 8

Allele <answer>An alternative form of a
gene.

Question 9

allopatric speciation <answer>The
formation of new species in populations
that are geographically isolated from one
another.

Question 10

Amino Acid <answer>Building block of
proteins. A small organic chemical that is