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ATI TEAS 7 Science Pretest Questions And Answers With Verified Solutions Guaranteed Success!!!
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ATI TEAS 7 Science Pretest Questions And Answers With Verified Solutions Guaranteed Success!!!
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ATI TEAS 7 Science Pretest QuestionsAnd Answers With Verified Solutions
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1. Inflammation, production of interferon, and ingestion of pathogens by
phagocytes are nonspecific cellular responses by which of the following?
Answer: C.) The internal aspect of the innate immune system
Explanation: The internal aspect of the innate immune system provides a collection
of nonspecific cellular responses such as inflammation, interferon production, and
phagocytosis.
2. What feature of the adaptive immune system decreases the amount of time
it takes for the body to respond to a particular antigen?
Answer: B.) Memory cells
Explanation: Memory cells allow the immune system to respond more quickly upon
reintroduction of a pathogen.
3. Which of the following occurs in the cardiac cycle if the impulse triggered
at the sinoatrial node never reaches the Purkinje fibers of the heart?
Answer: C.) The ventricles will not contract
Explanation: The Purkinje fibers are responsible for triggering the contraction of
the ventricles.
4. Which of the following describes the link between damaged villi and
malnutrition?
Answer: A.) Damaged villi decrease the nutrient-absorbing surface area in the
gastrointestinal tract
Explanation: The villi in the small intestine increase the surface area for nutrient
absorption, and damage to these villi reduces absorption efficiency.
5. Which of the following organs is responsible for the majority of the
chemical digestion and absorption of nutrients in the digestive system?
Answer: B.) Small intestine
Explanation: The small intestine is primarily responsible for chemical digestion
and nutrient absorption.
6. Contraction occurs within the thin _______ filaments slide past the thicker
______ filaments, causing the sarcomere unit to shorten or contract.
Answer: A.) actin; myosin
, Explanation: During muscle contraction, actin (thin filaments) slide over myosin
(thick filaments) to shorten the sarcomere.
7. The endocrine system is a collection of ductless glands that produce which
of the following responses?
Answer: D.) A slowly initiating but prolonged response on other body systems
Explanation: The endocrine system releases hormones, which typically have a slow
but lasting effect on body systems.
8. Which of the following terms refers to the middle layer of the skin that is
made of connective tissue?
Answer: C.) Dermis
Explanation: The dermis is the middle layer of the skin, containing connective
tissue, blood vessels, and nerve endings.
9. Which of the following is produced by the skin when a cholesterol-based
precursor is modified by the presence of ultraviolet radiation?
Answer: B.) Vitamin D
Explanation: Ultraviolet light helps convert a cholesterol-based precursor in the
skin to Vitamin D.
10. Which of the following types of bone cells perform mineral resorption?
Answer: D.) Osteoclasts
Explanation: Osteoclasts are responsible for breaking down bone tissue and
releasing minerals like calcium into the bloodstream.
11. Inside of adult long bones, yellow bone marrow is located within which of
the following?
Answer: B.) Medullary cavity
Explanation: The medullary cavity of long bones houses yellow bone marrow,
which stores fat.
12. Which of the following types of tissue serves to fasten and support body
parts?
Answer: A.) Connective
Explanation: Connective tissue supports and binds other tissues and organs in the
body.
13. Which of the following leaves the body via the vas deferens?
Answer: A.) Gametes
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