BIO 150 EXAM 1 QUESTIONS WITH CORRECT
ANSWERS 2026
What is cytology? - CORRECT ANSWER -The science of cells.
What is the smallest type of human cell mentioned? - CORRECT ANSWER -Granule Cell in
Cerebellum (4 microns).
What is the largest type of human cell mentioned? - CORRECT ANSWER -Pseudounipolar Cells
(up to 4-6 ft).
What size must an object be to be visible to the human eye? - CORRECT ANSWER -
Approximately 120 microns.
What are the main functions of cells? - CORRECT ANSWER -Obtain nutrients, produce proteins,
dispose of wastes, maintain shape, and reproduce.
What do diverse groups of cells form? - CORRECT ANSWER -Tissues.
What is cytoplasm? - CORRECT ANSWER -The inner fluid and contents of the cell between the
plasma membrane and nucleus.
What are organelles? - CORRECT ANSWER -Parts of the cell with specific functions.
What is the cytoskeleton? - CORRECT ANSWER -The structural framework within the cell.
What are the three components of the cytoskeleton? - CORRECT ANSWER -Microfilaments,
Intermediate Filaments, and Microtubules.
, What is the function of microtubules? - CORRECT ANSWER -To help direct chromosomes during
mitosis and position cell organelles.
Which organelle is responsible for assembling proteins? - CORRECT ANSWER -Ribosome.
What are the four principal types of tissues in histology? - CORRECT ANSWER -Epithelial,
Connective, Muscle, and Nervous.
What is the main function of neurons? - CORRECT ANSWER -To transmit signals between cells.
What is the appearance of neurons? - CORRECT ANSWER -Large cells with a prominent nucleus
and large branches protruding from the main body.
What are glial cells? - CORRECT ANSWER -Cells that support neurons.
What type of tissue is muscle tissue? - CORRECT ANSWER -Contractile tissue that causes
movement.
What are the three types of muscle tissue? - CORRECT ANSWER -Skeletal muscle, cardiac
muscle, and smooth muscle.
What is the function of skeletal muscle? - CORRECT ANSWER -Attached to the skeletal system,
results in voluntary movement.
What is the role of cardiac muscle? - CORRECT ANSWER -Involved in the contraction of the
heart, operates involuntarily.
ANSWERS 2026
What is cytology? - CORRECT ANSWER -The science of cells.
What is the smallest type of human cell mentioned? - CORRECT ANSWER -Granule Cell in
Cerebellum (4 microns).
What is the largest type of human cell mentioned? - CORRECT ANSWER -Pseudounipolar Cells
(up to 4-6 ft).
What size must an object be to be visible to the human eye? - CORRECT ANSWER -
Approximately 120 microns.
What are the main functions of cells? - CORRECT ANSWER -Obtain nutrients, produce proteins,
dispose of wastes, maintain shape, and reproduce.
What do diverse groups of cells form? - CORRECT ANSWER -Tissues.
What is cytoplasm? - CORRECT ANSWER -The inner fluid and contents of the cell between the
plasma membrane and nucleus.
What are organelles? - CORRECT ANSWER -Parts of the cell with specific functions.
What is the cytoskeleton? - CORRECT ANSWER -The structural framework within the cell.
What are the three components of the cytoskeleton? - CORRECT ANSWER -Microfilaments,
Intermediate Filaments, and Microtubules.
, What is the function of microtubules? - CORRECT ANSWER -To help direct chromosomes during
mitosis and position cell organelles.
Which organelle is responsible for assembling proteins? - CORRECT ANSWER -Ribosome.
What are the four principal types of tissues in histology? - CORRECT ANSWER -Epithelial,
Connective, Muscle, and Nervous.
What is the main function of neurons? - CORRECT ANSWER -To transmit signals between cells.
What is the appearance of neurons? - CORRECT ANSWER -Large cells with a prominent nucleus
and large branches protruding from the main body.
What are glial cells? - CORRECT ANSWER -Cells that support neurons.
What type of tissue is muscle tissue? - CORRECT ANSWER -Contractile tissue that causes
movement.
What are the three types of muscle tissue? - CORRECT ANSWER -Skeletal muscle, cardiac
muscle, and smooth muscle.
What is the function of skeletal muscle? - CORRECT ANSWER -Attached to the skeletal system,
results in voluntary movement.
What is the role of cardiac muscle? - CORRECT ANSWER -Involved in the contraction of the
heart, operates involuntarily.
