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ATI TEAS 7 Science QUESTIONS WITH ANSWERS 2023.pdf, Exams of Nursing

ATI TEAS 7 Science QUESTIONS WITH ANSWERS 2023.pdf

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2024/2025

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ATI TEAS 7 Science
QUESTIONS WITH
ANSWERS
1. Which of the following is the appropriate threshold value for mammalian neurons?
o -80 Mv
o -55 mV
o 0 mV
o +35 mV
2. In a certain plant, red flowers are dominant over white flowers. A plant heterozygous
for red flowers and a plant with white flowers are crossed. Which of the following is
the expected proportion of phenotypes in the next generation?
o 2 red, 2 white
o 4 red, 0 white
o 3 red, 1 white
o 1 red, 3 white
3. Which of the following structures is present in both prokarayotic cells?
o Endoplasmic reticulum
o Cell membrane
o Chloroplast
o Golgi apparatus
4. Which of the following can lead to a tsunami?
o Sunspot activity
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ATI TEAS 7 Science

QUESTIONS WITH

ANSWERS

  1. Which of the following is the appropriate threshold value for mammalian neurons? o - 80 Mv o - 55 mV o 0 mV o +35 mV
  2. In a certain plant, red flowers are dominant over white flowers. A plant heterozygous for red flowers and a plant with white flowers are crossed. Which of the following is the expected proportion of phenotypes in the next generation? o 2 red, 2 white o 4 red, 0 white o 3 red, 1 white o 1 red, 3 white
  3. Which of the following structures is present in both prokarayotic cells? o Endoplasmic reticulum o Cell membrane o Chloroplast o Golgi apparatus
  4. Which of the following can lead to a tsunami? o Sunspot activity

o Lightning strikes

o Granzymes

  1. The measurement indicated by the line across the centre of the cell is best referred to as which of the following? o Radius o Diameter o Area o Volume
  2. Which of the following properties of water explains its solvent abilities for certain substances? o High surface tension o Kinetic energy of liquid water molecules o Polarity of water molecules o High specific heat
  3. Which of the following vessels caries oxygenated blood? o Pulmonary vein o Inferior vena cava o Pulmonary artery o Superior vena cave
  4. Which of the following is a mass with the ovary that secretes hormones to maintain the uterine lining during pregnancy? o Umbilical cord o Corpus luteum o Oocyte o Oviduct
  1. To separate genomic DNA fragments by size, which of these laboratory methods is most useful? o Spectrophotometry o Electrophoresis o Filtration o Titration
  2. In a plant in which fuzzy leaves (F) are dominant over smooth leaves (f), which of the following crosses will produce only offspring with smooth leaves? o ff x ff o Ff x Ff o FF x FF o Ff x ff
  3. Which of the following physiological responses is caused by the release of anti- diuretic hormones? o Decrease in water reabsorption in the collecting duct o Decrease in the concentration of calcium in the glomerulus o Increase in water reabsorption in the collecting duct o Increase I the concentration of calcium in the glomerulus
  4. Which of the following is the atomic number that has 12 protons and 12 neotrons o 12 o 24 o 1 o 144
  5. Which of the following glands synthesizes antidiuretic hormone?

o Distal tubule o Afferent arteriole o Efferent arteriole

  1. Which of the following is the function of totipotent cell? o Carries electrical impulses o Fights infectious diseases o Aids the maturation of sex cells o Develops into any kind of cell
  2. Which of the following statements best supports the hypothesis that viruses can cause cancer? o Genes that regulate cell division are found in some viruses o Viruses and cancer cells both replicate rapidly o Cancerous and normal cells share genetic sequences o Cellular DNA has sequences related to viral sequences
  3. In a phase diagram, which of the following is the term used for a substance held at temperature and pressure where the solid, liquid, and gaseous states of a substance exist simultaneously? o Critical point o Triple point o Critical temperature o Absolute zero
  4. Which of the following microorganisms lack their own metabolic pathways and can reproduce inside a host cell? o Protozoa

o Helminths o Viruses o Bacteria

  1. If a portion of a strand of DNA bases reads 5’ AGCTAGCGT 3’, what would the sequence of bases on the complementary stand read? o 3’ AGCTSGCGT 5’ o 5’ UCGAUCGCA 3’ o 5’ TCGUTCGCU 3’ o 3’ TCGATCGCA 5’
  2. In a phase diagram, which of the following is the term used for a substance held at a temperature and pressure the liquid and gaseous phases of a substance merge together into a single phase? o Critical point o Triple point o Critical temperature o Absolute zero
  3. Which of the following indicates the function of sodium bicarbonate released by the pancreas? o Sodium bicarbonate stimulates the pyloric sphincter o Sodium bicarbonate is a protease that digests carbohydrates o Sodium bicarbonate neutralizes the acidity of chime o Sodium bicarbonate inhibits peristalsis
  4. Which of the following types of cells produce and release antibodies? o Natural killer cells

o Cytoplasm

  1. Testosterone is categorized as which of the following types of hormone? o Aldosterone o Progestin o Androgen o Estrogen
  2. Which of the following are the two major parts of the nervous system? o Autonomic nervous system and somatic nervous system o Peripheral nervous system and somatic nervous system o Autonomic nervous system and central nervous system o Peripheral nervous system and central nervous system
  3. Hiker who found a human body at high altitude in the Italian Alps thought the man had died recently, but tests indicate that he was shot with an arrow more than 5, years ago. Which of the following would be the best reason for prolonged preservation of the body? o The body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found o The food that the person ate contained toxins that killed the bacteria that would otherwise destroyed the body o The arrow wound caused blood to flow out of the body, which led enzymes that would break down tissue to be cleared from the body

o The ultraviolet rays at such a high altitude caused all the body’s molecules to be preserved.

  1. Nitrogen gas is an extremely stable because its structure contain which of the following? o Hydrogen bonds o Triple covalent bonds o Resonance bonds o Ionic bond.
  2. Which of the following best describes the result of using a catalyst in a chemical reaction? o The yield of a product is increased o A greater amount of heat energy is released by the reaction o A more desirable product is often formed o The reaction is completed in a shorter amount of time.
  3. Which of the following substances protect the skin from ultraviolet radiation? o Kerstin o Melanin o Perspiration o Sebum
  4. In a hypertonic solution, water flows through aquaporins embedded in the plasma membrane of the cell. This type of transport is best known as which of the following? o Osmosis o Active transport
  1. Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia? o Sebum o Water o Urea o Lysozymes
  2. Lithium has an atomic number of 3 and a mass of 7, which of the following is the number of protons in a lithium atom o 12 o 7 o 4 o 3
  3. Which of the following allows the AIDS virus, which contains RNA to insert viral DNA into the DNA of a host T-cells after the AIDS virus enters the cells? o Receptor proteins located on the surface of the virus o Reverse transcriptase, an enzyme encoded by the virus o The phospholipids found on the envelope of the virus o The protein that makes up the capsid of the virus
  4. A patient’s urine output was 800 ml/hr. following a treatment, the patient’s urine output increased to 1200 ml/hr. What is the percentage change in the urine output? (round the answer to the nearest whole number) 50%