1|Page
ATI TEAS 7 Biology 2025 – Updated Study
Guide, Practice Questions, and Answer Key for
Nursing Entrance Exam
Master the ATI TEAS 7 Biology section with this 2025 updated guide. Covers cell biology,
genetics, DNA, metabolism, and body systems with in-depth explanations and practice
questions. Prepare confidently for the TEAS Science section and boost your nursing school
admission score with the latest TEAS 7 Biology review materials.
• ATI TEAS 7 Biology 2025
• TEAS 7 science biology practice test
• TEAS 7 biology study guide
• ATI TEAS 7 biology questions and answers
Hemogoblin carries O2 to cells in the body, while antibodies are an important part of the immune
system. They are both proteins but why can they do different things? - ANSWER-The function of each
proteins is determined by its three-dimensional structure. Hemoglobin and antibodies have different
structures
What is not a carbohydrate? - ANSWER-ATP
What is a proton - ANSWER-The part of an atom counted to determine the atomic number of an element
Where are valence electrons located? - ANSWER-In the outermost shell of an atom
The atomic number of an element___ - ANSWER-Is the same as it's number of protons in one atom
,2|Page
Fact about isotopes - ANSWER-All isotopes of an element have the same number of protons and
electrons
The amount of molecular movement within a substance___ - ANSWER-Increases as it gains heat and
decreases as it loses heat
What can a phase diagram of water tell you - ANSWER-Pressure and temperature needed to change
water from liquid to gas
A person reacts to a bee sting with a life threatening allergic response that affects the respiratory system.
this response is in part due to the production of antibodies. What is responsible for this allergic reaction?
- ANSWER-Adaptive (active) immunity
An immune system's rejection of organs from an organ donor are caused by what? - ANSWER-The
immune system's recognition of foreign antigens
What secretes interleukins and triggers the action of other cells - ANSWER-Helper T cells
Mineral resorption is caused by what? - ANSWER-osteoclasts
weak and brittle bones caused by a lack of bone minerals are symptoms of what? - ANSWER-
osteoporosis
Blood vessels in bones___ - ANSWER-Travel in Volkmann Canals (Haversian)
What kind of connective tissues attaches muscle to bone? - ANSWER-Tendon
What structure is located in the axial skeleton and lined with mucus membrane ? - ANSWER-sinus
, 3|Page
Order the following examples of a body's structures organized from the simplest to the most complex -
ANSWER-Mitochondria, muscle cell, connective tissue, heart
Muscle cells contain many___ because of their high metabolism of ATP - ANSWER-Mitochondria
The failure of what organ could interfere with gas exchange in the body? - ANSWER-lung
Describe the prophase stage of mitosis - ANSWER-Visible chromosomes form
Describe the DNA double helix - ANSWER-A twisted ladder with bases facing each other as the rungs and
the phosphates and sugars forming the sides of the ladder.
Where is most of the DNA found in a human cell - ANSWER-nucleus
Describe a gene - ANSWER-A gene is heredity and codes for a protein or functional RNA molecule
Describe transcription and translation - ANSWER-The sequence of bases in a gene is used to make an
mRNA copy, which is read by a ribosome to make a chain of amino acids that folds into a protein
Where are chromosomes replicated - ANSWER-In a phase of the cell cycle
What monomers make up proteins? - ANSWER-amino acids
Why are lipids not typical polymers - ANSWER-Because they aren't made of repeating monomers
bonded together by dehydration reaction
Example of noncovalent bonds - ANSWER-Weak bonds such as hydrogen bonds
What is sublimation? - ANSWER-Transition from solid to gas without passing through the liquid state
What stimulates the production of antibodies - ANSWER-vaccine
ATI TEAS 7 Biology 2025 – Updated Study
Guide, Practice Questions, and Answer Key for
Nursing Entrance Exam
Master the ATI TEAS 7 Biology section with this 2025 updated guide. Covers cell biology,
genetics, DNA, metabolism, and body systems with in-depth explanations and practice
questions. Prepare confidently for the TEAS Science section and boost your nursing school
admission score with the latest TEAS 7 Biology review materials.
• ATI TEAS 7 Biology 2025
• TEAS 7 science biology practice test
• TEAS 7 biology study guide
• ATI TEAS 7 biology questions and answers
Hemogoblin carries O2 to cells in the body, while antibodies are an important part of the immune
system. They are both proteins but why can they do different things? - ANSWER-The function of each
proteins is determined by its three-dimensional structure. Hemoglobin and antibodies have different
structures
What is not a carbohydrate? - ANSWER-ATP
What is a proton - ANSWER-The part of an atom counted to determine the atomic number of an element
Where are valence electrons located? - ANSWER-In the outermost shell of an atom
The atomic number of an element___ - ANSWER-Is the same as it's number of protons in one atom
,2|Page
Fact about isotopes - ANSWER-All isotopes of an element have the same number of protons and
electrons
The amount of molecular movement within a substance___ - ANSWER-Increases as it gains heat and
decreases as it loses heat
What can a phase diagram of water tell you - ANSWER-Pressure and temperature needed to change
water from liquid to gas
A person reacts to a bee sting with a life threatening allergic response that affects the respiratory system.
this response is in part due to the production of antibodies. What is responsible for this allergic reaction?
- ANSWER-Adaptive (active) immunity
An immune system's rejection of organs from an organ donor are caused by what? - ANSWER-The
immune system's recognition of foreign antigens
What secretes interleukins and triggers the action of other cells - ANSWER-Helper T cells
Mineral resorption is caused by what? - ANSWER-osteoclasts
weak and brittle bones caused by a lack of bone minerals are symptoms of what? - ANSWER-
osteoporosis
Blood vessels in bones___ - ANSWER-Travel in Volkmann Canals (Haversian)
What kind of connective tissues attaches muscle to bone? - ANSWER-Tendon
What structure is located in the axial skeleton and lined with mucus membrane ? - ANSWER-sinus
, 3|Page
Order the following examples of a body's structures organized from the simplest to the most complex -
ANSWER-Mitochondria, muscle cell, connective tissue, heart
Muscle cells contain many___ because of their high metabolism of ATP - ANSWER-Mitochondria
The failure of what organ could interfere with gas exchange in the body? - ANSWER-lung
Describe the prophase stage of mitosis - ANSWER-Visible chromosomes form
Describe the DNA double helix - ANSWER-A twisted ladder with bases facing each other as the rungs and
the phosphates and sugars forming the sides of the ladder.
Where is most of the DNA found in a human cell - ANSWER-nucleus
Describe a gene - ANSWER-A gene is heredity and codes for a protein or functional RNA molecule
Describe transcription and translation - ANSWER-The sequence of bases in a gene is used to make an
mRNA copy, which is read by a ribosome to make a chain of amino acids that folds into a protein
Where are chromosomes replicated - ANSWER-In a phase of the cell cycle
What monomers make up proteins? - ANSWER-amino acids
Why are lipids not typical polymers - ANSWER-Because they aren't made of repeating monomers
bonded together by dehydration reaction
Example of noncovalent bonds - ANSWER-Weak bonds such as hydrogen bonds
What is sublimation? - ANSWER-Transition from solid to gas without passing through the liquid state
What stimulates the production of antibodies - ANSWER-vaccine
