TEAS Science Review – Tristine’s 2025 Study Guide | Comprehensive
Prep Notes
1. What are the three types of salivary glands and where are they located in the mouth? -
correct answer - Parotid, sublingual, and submandibular glands located in the roof of the
mouth, cheeks, and under the jawbone, respectively.
1. Which of the following substances is excreted by the kidneys to regulate blood pressure? -
correct answer - Renin
1. What is the chemical formula for water? - correct answer - H20
1. Which of the following units is used to indicate length? - correct answer M
researcher collects data on the number of cars passing through a busy intersection at different
times of the day for a month. This data would be most useful to analyze which of the following:
- correct answer - traffic patterns during rush hour
1. What is the largest organ in the human body by surface area? - correct answer - Skin
1. Which of the following describes the function of ligaments? - correct answer - Ligaments
attach two bones
1. What is the difference between innate and adaptive immunity? - correct answer - Innate
immunity is present at birth while adaptive immunity is acquired after exposure to pathogens.
1. Which of the following is responsible for carrying amino acids to ribosomes during protein
synthesis? - correct answer - tRNA
1. What are the steps involved in the scientific method? - correct answer - Observation,
hypothesis, prediction, experimentation, analysis, conclusion.
1. What is the difference between a solid and a liquid? - correct answer - Solids have a definite
shape and volume while liquids have a definite volume but no fixed shape.
1. Which part of the respiratory system is responsible for regulating breathing rate and depth? -
correct answer - Diaphragm
1. What is the difference between a monosaccharide and a disaccharide? - correct answer -
Monosaccharides are simple sugars that cannot be further broken down into simpler sugars
while disaccharides are composed of two simple sugars.
1. Which of the following is the process by which DNA is copied into RNA? - correct answer -
Transcription
,1. What is the role of calcium in muscle contraction? - correct answer - Calcium is released from
the sarcoplasmic reticulum to initiate the sliding of actin and myosin filaments.
1. What is the name of the dome-shaped muscle that plays a key role in breathing? - correct
answer - Diaphragm
1. What is the role of the epididymis in sperm maturation? - correct answer - The epididymis
stores and protects sperm cells until ejaculation.
1. Which of the following is a function of the respiratory system? - correct answer - Exchange of
gases between the body and the environment
1. What is the difference between isotonic and isometric muscle contractions? - correct answer
- Isotonic contractions produce movement while isometric contractions produce no movement.
Which of the following is a characteristic of innate immunity - correct answer - It provides
immediate, non-specific protection.
1. Which of the following is NOT one of the four primary tissue types found in the human body?
- correct answer - Exocrine glandular
1. Which of the following is a type of genetic mutation that involves the insertion or deletion of
one or more nucleotides in a DNA sequence? - correct answer - Frameshift mutation
1. Which of the following describes the process of osmosis? - correct answer - Movement of
water molecules from an area of high concentration to an area of low concentration through a
selectively permeable membrane.
1. Which of the following is a chemical property of a substance? - correct answer - Reactivity
with acid
1. Which statement best defines the difference between a physical change and a chemical
change? - correct answer - A physical change involves the rearrangement of atoms and
molecules while a chemical change involves the formation of new substances with different
chemical properties.
1. During embryonic development, which of the following germ layers forms the nervous
system? - correct answer - Ectoderm
1. What is the primary pigment responsible for photosynthesis in plants? - correct answer -
Chlorophyll a
1. Which of the following is an example of an exothermic reaction? - correct answer - Burning
wood
1. Which of the following statements is true regarding vaccines? - correct answer - Vaccines
work by exposing the individual to a weakened or inactivated form of the pathogen
, 1. What is the function of ribosomes in a cell? - correct answer - To synthesize proteins in the
cell
1. Which of the following is an example of a double-blind study? - correct answer - Both
participants and researchers do not know which group participants are assigned to
1. What is the name of the hormone that regulates blood sugar levels in the human body? -
correct answer - Insulin
1. What is the primary physiological function of erythrocytes in the human circulatory system? -
correct answer - Transportation of oxygen to body tissues
1. What is the name of the joint that allows for rotation of the arm at the shoulder? - correct
answer - Shoulder joint
1. What is the name of the valve that separates the left atrium and left ventricle in the heart? -
correct answer - Mitral valve
1. What is the molecular geometry of a molecule of sulphur dioxide (SO2)? - correct answer -
Bent
1. What is the name of the genetic disorder caused by the presence of an extra chromosome
21? - correct answer - Down syndrome
1. Which of the following types of RNA carries amino acids to the ribosome during protein
synthesis? - correct answer - Transfer RNA
1. What are the five regions of the vertebral column, starting from the top and moving
downwards? - correct answer - Cervical, thoracic, lumbar, sacral, coccygeal
1. Which of the following are the two major parts of the nervous system? - correct answer -
Peripheral nervous system and central nervous system.
1. The measurement indicated by the line across the center of the cell is best referred to as
which of the following? - correct answer - Diameter
1. Which of the following ions binds to the troponin complex, initiating contraction of a muscle?
- correct answer - Calcium
1. Which of the following microorganisms lack their own metabolic pathways and can only
reproduce inside of a host cell? - correct answer - Viruses
1. Which of the following is the atomic number of an atom that has 12 protons and 12
neutrons? - correct answer - 12
1. Which of the following types of cells produce and release antibodies? - correct answer -
Plasma B cells
Prep Notes
1. What are the three types of salivary glands and where are they located in the mouth? -
correct answer - Parotid, sublingual, and submandibular glands located in the roof of the
mouth, cheeks, and under the jawbone, respectively.
1. Which of the following substances is excreted by the kidneys to regulate blood pressure? -
correct answer - Renin
1. What is the chemical formula for water? - correct answer - H20
1. Which of the following units is used to indicate length? - correct answer M
researcher collects data on the number of cars passing through a busy intersection at different
times of the day for a month. This data would be most useful to analyze which of the following:
- correct answer - traffic patterns during rush hour
1. What is the largest organ in the human body by surface area? - correct answer - Skin
1. Which of the following describes the function of ligaments? - correct answer - Ligaments
attach two bones
1. What is the difference between innate and adaptive immunity? - correct answer - Innate
immunity is present at birth while adaptive immunity is acquired after exposure to pathogens.
1. Which of the following is responsible for carrying amino acids to ribosomes during protein
synthesis? - correct answer - tRNA
1. What are the steps involved in the scientific method? - correct answer - Observation,
hypothesis, prediction, experimentation, analysis, conclusion.
1. What is the difference between a solid and a liquid? - correct answer - Solids have a definite
shape and volume while liquids have a definite volume but no fixed shape.
1. Which part of the respiratory system is responsible for regulating breathing rate and depth? -
correct answer - Diaphragm
1. What is the difference between a monosaccharide and a disaccharide? - correct answer -
Monosaccharides are simple sugars that cannot be further broken down into simpler sugars
while disaccharides are composed of two simple sugars.
1. Which of the following is the process by which DNA is copied into RNA? - correct answer -
Transcription
,1. What is the role of calcium in muscle contraction? - correct answer - Calcium is released from
the sarcoplasmic reticulum to initiate the sliding of actin and myosin filaments.
1. What is the name of the dome-shaped muscle that plays a key role in breathing? - correct
answer - Diaphragm
1. What is the role of the epididymis in sperm maturation? - correct answer - The epididymis
stores and protects sperm cells until ejaculation.
1. Which of the following is a function of the respiratory system? - correct answer - Exchange of
gases between the body and the environment
1. What is the difference between isotonic and isometric muscle contractions? - correct answer
- Isotonic contractions produce movement while isometric contractions produce no movement.
Which of the following is a characteristic of innate immunity - correct answer - It provides
immediate, non-specific protection.
1. Which of the following is NOT one of the four primary tissue types found in the human body?
- correct answer - Exocrine glandular
1. Which of the following is a type of genetic mutation that involves the insertion or deletion of
one or more nucleotides in a DNA sequence? - correct answer - Frameshift mutation
1. Which of the following describes the process of osmosis? - correct answer - Movement of
water molecules from an area of high concentration to an area of low concentration through a
selectively permeable membrane.
1. Which of the following is a chemical property of a substance? - correct answer - Reactivity
with acid
1. Which statement best defines the difference between a physical change and a chemical
change? - correct answer - A physical change involves the rearrangement of atoms and
molecules while a chemical change involves the formation of new substances with different
chemical properties.
1. During embryonic development, which of the following germ layers forms the nervous
system? - correct answer - Ectoderm
1. What is the primary pigment responsible for photosynthesis in plants? - correct answer -
Chlorophyll a
1. Which of the following is an example of an exothermic reaction? - correct answer - Burning
wood
1. Which of the following statements is true regarding vaccines? - correct answer - Vaccines
work by exposing the individual to a weakened or inactivated form of the pathogen
, 1. What is the function of ribosomes in a cell? - correct answer - To synthesize proteins in the
cell
1. Which of the following is an example of a double-blind study? - correct answer - Both
participants and researchers do not know which group participants are assigned to
1. What is the name of the hormone that regulates blood sugar levels in the human body? -
correct answer - Insulin
1. What is the primary physiological function of erythrocytes in the human circulatory system? -
correct answer - Transportation of oxygen to body tissues
1. What is the name of the joint that allows for rotation of the arm at the shoulder? - correct
answer - Shoulder joint
1. What is the name of the valve that separates the left atrium and left ventricle in the heart? -
correct answer - Mitral valve
1. What is the molecular geometry of a molecule of sulphur dioxide (SO2)? - correct answer -
Bent
1. What is the name of the genetic disorder caused by the presence of an extra chromosome
21? - correct answer - Down syndrome
1. Which of the following types of RNA carries amino acids to the ribosome during protein
synthesis? - correct answer - Transfer RNA
1. What are the five regions of the vertebral column, starting from the top and moving
downwards? - correct answer - Cervical, thoracic, lumbar, sacral, coccygeal
1. Which of the following are the two major parts of the nervous system? - correct answer -
Peripheral nervous system and central nervous system.
1. The measurement indicated by the line across the center of the cell is best referred to as
which of the following? - correct answer - Diameter
1. Which of the following ions binds to the troponin complex, initiating contraction of a muscle?
- correct answer - Calcium
1. Which of the following microorganisms lack their own metabolic pathways and can only
reproduce inside of a host cell? - correct answer - Viruses
1. Which of the following is the atomic number of an atom that has 12 protons and 12
neutrons? - correct answer - 12
1. Which of the following types of cells produce and release antibodies? - correct answer -
Plasma B cells
