2026 ATI TEAS SECRETS – SCIENCE A&P
PORTION | UPDATED STUDY GUIDE WITH
PRACTICE QUESTIONS, ANSWERS, AND
RATIONALES
| GRADED A+ | GUARANTEED SUCCESS
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales Included
,cytoplasm (cytosol) The fluid in between the cell membrane and nucleus that all organelles "float" in.
organelles Groups of complex molecules that help a cell survive
larger The _____ the cell, the more organelles it will need to live
DNA/RNA All cells contain ____ and ____ and can synthesize proteins
nucleic acids, cytoplasm, and cell membrane Each cell consists of what three things?
mitochondria/chloroplasts Specialized organelles such as _____ (animal cell) and ______ (plant cell) have specific
functions within the cell
asexual reproduction A reproductive process that involves only one parent and produces offspring that
are identical to the parent.
sexual reproduction A reproductive process that involves two parents that combine their genetic
material to produce a new organism, which differs from both parents
tissues Groups of cells that are similar in structure and function
,organs Groups of tissues that work together to perform a specific function or related
functions
systems groups of organs working together to perform complex functions
organism An individual living thing
Ribosomes Part of the cell structure that:
- 1) synthesize proteins from amino acids
- 2) are numerous, making about one quarter of the cell
** some cells contain thousands of ribosomes.
- 3) some are mobile and some are embedded on the Rough Endoplasmic
Reticulum (ER)
Golgi Complex/Apparatus Part of the cell structure that:
- 1) synthesize materials such as proteins that are transported out of the cell
- 2) Is located near the nucleus
- 3) consists of layers of membranes
Vacuoles Part of the cell structure that:
- 1) are sacs used for storage, digestion, and waste removal
- 2) One large one in plant cells
- 3) Animal cells have small, sometimes numerous of these
, Vesicle Part of the cell structure that:
- 1) is a small organelle within a cell
- 2)has a membrane
- 3) performs varying functions including:
*moving materials within the cell
Cytoskeleton Part of the cell structure that:
- consists of microtubules that help shape and support the cell
Microtubules Part of the cell structure that:
- Are spiral strands of protein molecules that form a tube-like structure.
- part of the cytoskeleton and help support the cell
- made up of proteins
Cytosol Part of the cell structure that:
1) Is the liquid material in the cell
2) It is mostly water, but contains some floating molecules.
Cytoplasm Part of the cell structure that:
Composed of:
1) Refers to the cytosol
2) and the substructures (organelles) found within the cytosol, but not within the
nucleus.
Cell membrane (plasma membrane) Part of the cell structure that:
- defines the cell by acting as a barrier
- helps keeps cytoplasm in and substances located out of the cell, out
- also determines what is allowed to enter and exit the cell
Endoplasmic Reticulum (ER) Part of the cell structure that:
- has two types (rough and smooth)
- is a tubular network that comprises the transport system of a cell
- fused to the nuclear membrane and extends through the cytoplasm to the cell
membrane
Rough Endoplasmic Reticulum (Rough ER) has ribosomes on the surface
Smooth Endoplasmic Reticulum (Smooth ER) does not have ribosomes on the surface
PORTION | UPDATED STUDY GUIDE WITH
PRACTICE QUESTIONS, ANSWERS, AND
RATIONALES
| GRADED A+ | GUARANTEED SUCCESS
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales Included
,cytoplasm (cytosol) The fluid in between the cell membrane and nucleus that all organelles "float" in.
organelles Groups of complex molecules that help a cell survive
larger The _____ the cell, the more organelles it will need to live
DNA/RNA All cells contain ____ and ____ and can synthesize proteins
nucleic acids, cytoplasm, and cell membrane Each cell consists of what three things?
mitochondria/chloroplasts Specialized organelles such as _____ (animal cell) and ______ (plant cell) have specific
functions within the cell
asexual reproduction A reproductive process that involves only one parent and produces offspring that
are identical to the parent.
sexual reproduction A reproductive process that involves two parents that combine their genetic
material to produce a new organism, which differs from both parents
tissues Groups of cells that are similar in structure and function
,organs Groups of tissues that work together to perform a specific function or related
functions
systems groups of organs working together to perform complex functions
organism An individual living thing
Ribosomes Part of the cell structure that:
- 1) synthesize proteins from amino acids
- 2) are numerous, making about one quarter of the cell
** some cells contain thousands of ribosomes.
- 3) some are mobile and some are embedded on the Rough Endoplasmic
Reticulum (ER)
Golgi Complex/Apparatus Part of the cell structure that:
- 1) synthesize materials such as proteins that are transported out of the cell
- 2) Is located near the nucleus
- 3) consists of layers of membranes
Vacuoles Part of the cell structure that:
- 1) are sacs used for storage, digestion, and waste removal
- 2) One large one in plant cells
- 3) Animal cells have small, sometimes numerous of these
, Vesicle Part of the cell structure that:
- 1) is a small organelle within a cell
- 2)has a membrane
- 3) performs varying functions including:
*moving materials within the cell
Cytoskeleton Part of the cell structure that:
- consists of microtubules that help shape and support the cell
Microtubules Part of the cell structure that:
- Are spiral strands of protein molecules that form a tube-like structure.
- part of the cytoskeleton and help support the cell
- made up of proteins
Cytosol Part of the cell structure that:
1) Is the liquid material in the cell
2) It is mostly water, but contains some floating molecules.
Cytoplasm Part of the cell structure that:
Composed of:
1) Refers to the cytosol
2) and the substructures (organelles) found within the cytosol, but not within the
nucleus.
Cell membrane (plasma membrane) Part of the cell structure that:
- defines the cell by acting as a barrier
- helps keeps cytoplasm in and substances located out of the cell, out
- also determines what is allowed to enter and exit the cell
Endoplasmic Reticulum (ER) Part of the cell structure that:
- has two types (rough and smooth)
- is a tubular network that comprises the transport system of a cell
- fused to the nuclear membrane and extends through the cytoplasm to the cell
membrane
Rough Endoplasmic Reticulum (Rough ER) has ribosomes on the surface
Smooth Endoplasmic Reticulum (Smooth ER) does not have ribosomes on the surface
