ATI TEAS 7: SCIENCE EXAM WITH IN-DEPTH QUESTIONS &
MODEL ANSWERS
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
MODEL ANSWERS
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
