ATI TEAS 7 SCIENCE EXAM WITH CORRECT ANSWERS

ATI TEAS 7 SCIENCE EXAM
WITH CORRECT ANSWERS
1. Which of the following cells transfers pigment granules to adjacent epidermal cells? - ANSWER
-- Melanocytes

1. Which of the following is an example of a biological macromolecule? - ANSWER -- Nucleic acid,
Protein

1. In which of the following locations does fertilization of an egg cell typically occur? - ANSWER --
Fallopian tube

1. Which of the following demonstrates a chemical reaction of water? - ANSWER -- Water produces
gas with sodium metal.

1. Which of the following hormones regulates blood calcium levels? - ANSWER -- Parathyroid
hormone

1. Which of the following tools can be used to measure the turbidity of a liquid by measuring the
transmission of light through the sample? - ANSWER -- Spectrophotometer

1. The component of an atom that possesses relatively little mass, thus being negligible in
calculating the atomic mass number, is the - ANSWER -- Electron

1. Which of the following tissues lines the interior surfaces of the heart? - ANSWER -- Endocardium

,1. Which of the following contains a human's hereditary information? - ANSWER -- Chromatin

1. Which of the following molecules contains the fewest covalent bonds? - ANSWER -- Chlorine
molecule (Cl)

1. If a portion of a strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases
1. What are the three types of salivary glands and where are they located in the mouth? -
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? -
ANSWER -- Renin

1. What is the chemical formula for water? - ANSWER -- H20

1. Which of the following units is used to indicate length? - 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: -
ANSWER -- traffic patterns during rush hour

1. What is the largest organ in the human body by surface area? - ANSWER -- Skin

1. Which of the following describes the function of ligaments? - ANSWER -- Ligaments attach two
bones

1. What is the difference between innate and adaptive immunity? - 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? - ANSWER -- tRNA

1. What are the steps involved in the scientific method? - ANSWER -- Observation, hypothesis,
prediction, experimentation, analysis, conclusion.

1. What is the difference between a solid and a liquid? - 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? -
ANSWER -- Diaphragm

1. What is the difference between a monosaccharide and a disaccharide? - 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? - ANSWER -- Transcription

1. What is the role of calcium in muscle contraction? - 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? - ANSWER --
Diaphragm

1. What is the role of the epididymis in sperm maturation? - ANSWER -- The epididymis stores and
protects sperm cells until ejaculation.

1. Which of the following is a function of the respiratory system? - ANSWER -- Exchange of gases
between the body and the environment