ATI TEAS DENTAL HYGIENE ENTRANCE
EXAM QUESTIONS AND ANSWERS
UPDATED (2024/2025) (VERIFIED
ANSWERS)
How many ribosomes are in a single cell? - ANS ✓numerous and take up
about one quarter of the cell
Where are ribosomes located in the cell? - ANS ✓some are mobile and some
are embedded in the endoplasmic reticulum
What does the golgi apparatus (golgi complex) do? - ANS ✓synthesizes
materials such as proteins that are transported out of the cell
Where is the golgi apparatus (golgi complex) located? - ANS ✓near the
nucleus
What does the golgi apparatus (golgi complex) consist of? - ANS ✓layers of
membranes
What are vacuoles? - ANS ✓sacs used for storage, digestion, and waste removal
How are vacuoles presented in different cells (plant/animal)? - ANS ✓plant:
one large vacuole
animal: small, sometimes numerous vacuoles
What is a vesicle within the cell and what does it have? - ANS ✓it is a small
organelle and has a membrane
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What does a vesicle in the cell do? - ANS ✓performs varying functions
including moving materials within a cell
What does the cytoskeleton of the cell consist of? - ANS ✓microtubules
What does the cytoskeleton of the cell do? - ANS ✓shape and support the cell
What are microtubules apart of? - ANS ✓the cell cytoskeleton
What do microtubules do? - ANS ✓support the cell
What are microtubules made of? - ANS ✓protein
What is cytosol? - ANS ✓liquid material in the cell
What makes up the cytosol? - ANS ✓mostly water, but also contains some
floating molecules
What does the term cytoplasm refer to? - ANS ✓cytosol and the substructures
(organelles) found within the plasma membrane, but not within the nucleus
What does the cell membrane (plasma membrane) do? - ANS ✓defines the
cell by acting as a barrier, helps keep cytoplasm in and substances located
outside the cell, and determines what enters and exits the cell
What are the two types of endoplasmic reticulum? - ANS ✓smooth and rough
What distinguishes rough ER? - ANS ✓ribosomes on the surface
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What distinguishes smooth ER? - ANS ✓does not have ribosomes on the
surface
What is endoplasmic reticulum? - ANS ✓a tubular network that comprises the
transport system of a cell
Where is the endoplasmic reticulum located? - ANS ✓it is fused to the nuclear
membrane and extends through the cytoplasm to the cell membrane
How does mitochondrion differ from cell to cell? - ANS ✓they vary in terms of
size and quantity
What do mitochondrion do? - ANS ✓generate ATP and involve itself with cell
growth and death
What makes mitochondrion DNA unique? - ANS ✓they contain their own DNA
that is separate from that contained in the nucleus
What are the four specific functions of mitochondria? - ANS ✓producing cell
energy, cell signaling, cellular differentiation, and cell cycle/growth regulation
What is cell signaling? - ANS ✓how communications are carried out within a
cell
What is cellular differentiation? - ANS ✓the process whereby a non-
differentiated cell becomes transformed into a cell with a more specialized
purpose
What is the general description of cell cycle/growth regulation? - ANS ✓the
process whereby the cell gets ready to reproduce and reproduces
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