WGU C190 Intro to Biology Unit 3 Exam Questions and Answers
with Verified Solutions | Latest 2026 Update
Q: Features of DNA
Answer:
Function: Stores genetic information. Location: Remains in the nucleus. Structure:
Double helix. Sugar: Deoxyribose. Pyrimidines: Cytosine, Thymine. Purines:
Adenine, guanine.
Q: Features of RNA
Answer:
Function: Involved in protein synthesis. Location: Leaves the nucleus. Structure:
Usually single-stranded. Sugar: Ribose. Pyrimidines: Cytosine, uracil. Purines:
Adenine, guanine.
Q: 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.
Q: Cell Membrane
Answer:
provides a barrier between the interior and exterior of the cell and it regulates the
flow of substances in and out of the cell.
Q: Cell wall
Answer:
Protective layer for prokaryotes, made of peptidoglycan.
Q: central vacuole
Answer:
In a plant cell. can be a place of storage, degradation, defense, and even physical
support for the cell.
Q: centriole
, Answer:
A barrel-shaped structure only present in animal cells. plays a role in the spatial
organization of the cell and cell division.
Q: chloroplast
Answer:
In a plant cell. Chloroplasts capture energy from the sun and use that energy to
build sugar molecules.
Q: chromatin
Answer:
the material of which the chomrosomes of organisms are composed. Consists of
protein,
RNA and DNA
Q: chromosome
Answer:
A single molecule of DNA.
Q: cilium
Answer:
a short, microscopic, hairlike vibrating structure. Occurs in large numbers on the
surface of certain cells.
Q: cytoplasm
Answer:
the fluid that occupies the space inside the cell. the space in which the chemical
reactions that enable life take place.
Q: cytoskeleton
Answer:
formed by a series of protein filaments, and is both a scaffold for the cell structure
and a framework for many cellular activities, including movement and cell
division.
Q: endoplasmic reticulum (ER)
with Verified Solutions | Latest 2026 Update
Q: Features of DNA
Answer:
Function: Stores genetic information. Location: Remains in the nucleus. Structure:
Double helix. Sugar: Deoxyribose. Pyrimidines: Cytosine, Thymine. Purines:
Adenine, guanine.
Q: Features of RNA
Answer:
Function: Involved in protein synthesis. Location: Leaves the nucleus. Structure:
Usually single-stranded. Sugar: Ribose. Pyrimidines: Cytosine, uracil. Purines:
Adenine, guanine.
Q: 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.
Q: Cell Membrane
Answer:
provides a barrier between the interior and exterior of the cell and it regulates the
flow of substances in and out of the cell.
Q: Cell wall
Answer:
Protective layer for prokaryotes, made of peptidoglycan.
Q: central vacuole
Answer:
In a plant cell. can be a place of storage, degradation, defense, and even physical
support for the cell.
Q: centriole
, Answer:
A barrel-shaped structure only present in animal cells. plays a role in the spatial
organization of the cell and cell division.
Q: chloroplast
Answer:
In a plant cell. Chloroplasts capture energy from the sun and use that energy to
build sugar molecules.
Q: chromatin
Answer:
the material of which the chomrosomes of organisms are composed. Consists of
protein,
RNA and DNA
Q: chromosome
Answer:
A single molecule of DNA.
Q: cilium
Answer:
a short, microscopic, hairlike vibrating structure. Occurs in large numbers on the
surface of certain cells.
Q: cytoplasm
Answer:
the fluid that occupies the space inside the cell. the space in which the chemical
reactions that enable life take place.
Q: cytoskeleton
Answer:
formed by a series of protein filaments, and is both a scaffold for the cell structure
and a framework for many cellular activities, including movement and cell
division.
Q: endoplasmic reticulum (ER)
