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ATI TEAS 7 SCIENCE LATEST EXAM QUESTIONS AND ANSWE
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ATI TEAS 7 SCIENCE LATEST EXAM QUESTIONS AND ANSWERS7 DIFFERENT VERSIONS
What are the three types of salivary glands & where are they located? (Match the
letter to the number.)
A) Parotid
B) Sublingual
C) Submandibular
1) Under the jawbone
2) Roof of the mouth
3) Within the cheeks - ANSWER: A2) Parotid is located in the roof of the mouth.
B3) Sublingual is within the cheeks.
C1) Submandibular is under the jawbone.
Which of the following substances is excreted by the kidneys to regulate blood
pressure?
A) Renin
B) Erythropoietin
C) Calcitriol
D) Urobilinogen - ANSWER: A) Renin
What is the chemical formula for water?
A) H₂O
B) CO₂
C) NaCl
D) C₆H₁₂O₆ - ANSWER: A) H₂O
What is the largest organ in the human body by surface area?
A) Brain
B) Heart
C) Liver
D) Skin - ANSWER: D) Skin
Which of the following units is used to indicate length?
A) kg
B) L
C) s
D) m - ANSWER: D) m
,The unit used to indicate length is the meter (m). It is the base unit of length in the
International System of Units (SI).
A 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:
A) Traffic patterns during rush hour
B) Pedestrian movement during the day
C) Air pollution levels in the area
C) Noise levels in the area - ANSWER: A) Traffic patterns during rush hour
Which of the following describes the function of ligaments?
A) Ligaments attach skeletal muscles to bone
B) Ligaments attach two bones
C) Ligaments attach bones to tendons
D) Ligaments attach skeletal muscles to tendons - ANSWER: B) Ligaments attach two
bones
Which of the following is responsible for carrying amino acids to ribosomes during
protein synthesis?
A) tRNA
B) mRNA
C) rRNA
D) DNA - ANSWER: A) tRNA
Each tRNA molecule has a specific anticodon that matches a codon on the mRNA
molecule. When bonded, it brings the corresponding amino acid to the ribosome,
where it is added to the growing polypeptide chain.
Which part of the respiratory system is responsible for regulating breathing rate &
depth?
A) Bronchi
B) Alveoli
C) Diaphragm
D) Trachea - ANSWER: C) Diaphragm
Which of the following is the process by which DNA is copied into RNA?
A) Replication
B) Transcription
C) Translation
D) Mutation - ANSWER: B) Transcription
, During transcription, DNA unwinds & RNA polymerase reads the DNA sequences &
synthesizes a complementary RNA molecule using DNA as a template.
What is the difference between innate & adaptive immunity?
A) Innate immunity is present at birth while adaptive immunity is acquired after
exposure to pathogens.
B) Innate immunity is specific to particular pathogens while adaptive immunity is
nonspecific.
C) Innate immunity is mediated by antibodies while adaptive immunity is mediated
by T cells.
D) Innate immunity provides long-term protection while adaptive immunity provides
only short-term protection. - ANSWER: A) Innate immunity is present at birth while
adaptive immunity is acquired after exposure to pathogens.
Innate immunity is the first line of defense & present at birth, it includes
physical/chemical barriers. (Skin, mucous membranes, antimicrobial peptides,
macrophages, natural killer cells).
Adaptive immunity is acquired after exposure to pathogens, it involves production of
antibodies & activation of T cells specific to particular pathogens. It's longer to
develop but more specific/targeted.
What are the steps involved in the scientific method?
A) Observation, hypothesis, prediction, experimentation, analysis, conclusion.
B) Hypothesis, observation, prediction, experimentation, analysis, conclusion.
C) Prediction, observation, experimentation, analysis, conclusion, hypothesis.
D) Observation, data collection, analysis, experimentation, hypothesis, conclusion. -
ANSWER: A) Observation, hypothesis, prediction, experimentation, analysis,
conclusion.
What is the difference between a solid and a liquid?
A) Solids have a definite shape & volume while liquids have a definite volume but no
fixed shape.
B) Solids have no definite shape or volume while liquids have a definite volume and
& the shape of their container.
C) Solids & liquids have the same physical properties.
D)Solids have a definite volume but take the shape of their container while liquids
have a definite shape and volume. - ANSWER: A) Solids have a definite shape &
volume while liquids have a definite volume but no fixed shape.
Which part of the respiratory system is responsible for regulating breathing rate &
depth?
A) Bronchi
B) Alveoli
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