ATI TEAS 7 SCIENCE EXAM A NEW UPDATED VERSION
LATEST 2024-2025 NEWEST EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS/ATI TEAS 7 SCIENCE
EXAM 2024(100% CORRECT VERIFIED ANSWERS)
ALREADY GRADED A+
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).
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