2023-2024 ATI TEAS 7 Science Versions 1-3 Actual Exam with Answers (44 Solved Questions)

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ATI TEAS 7 SCIENCE ACTUAL
EXAM 1-3 (ALL 3 VERSIONS
COMBINED NEW 2023/2024)
100% verified correct answers
ACTUAL ATI TEAS 7 SCIENCE EXAM 2
1. Which of the following parts of the central nervous system releases chemicals that
regulate the pituitary gland?
o Hypothalamus o Cerebellum
o Thalamus
o Spinal cord
2. The shortening of a sarcomere in skeletal muscle is directly due to the interactional of
which of the following?
o Acetylcholine and acetylcholinesterase
o Pepsin and pepsinogen
o Myosin and actin
o Dynein and kinesin
3. Mutations in which of the following types of cells can be inherited by offspring?
o Ovarian o endocrine
o neural
o muscle
4. Which of the following describes the function of tendons?

o Tendons attach skeletal muscle to bone
o Tendons attach two bones
Tendons attach bones to ligaments o
Tendons attach skeletal muscles to ligaments
5. Which of the following substances is excreted by sweet glands in response to the
breakdown of protein and the formation of ammonia?
o Lysoymes
o Water
o Urea
o Sebum
6. Which of the following terms describes the removal of metabolic waste from the
body?
o Secretion
o catabolism
o anabolism
o excretion
7. A cell is placed in a hypertonic solution. Which of the following describes the
resulting osmosis?
o There is no flow of water
o The net flow of water into and out of the cell is zero
o There is a net flow of water out of the cell
o There is a net flow of water into the cell.
8. Which of the following is an example of active transport?

Aquaporins in kidney cells that help concentrate urine o Movement of
substance from an area of high concentration to an area of low
concentration
o Movement of a sodium and potassium across the cell membrane against the
concentration gradient.
o Loss of water from a cell in a hypertonic solution
9. Which of the following vessels is responsible for carrying blood from the upper
body to the right atrium of the heart?
o Pulmonary veins
o Aorta
o Pulmonary arteries
o Superior vena cava
10. Carbohydrates are composed of which of the following?
o Nucleic acids
o Monosaccharides
o Isoprenoids
o Amino acids
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11. The following equation summarizes the carbonic acid-bicarbonate ion buffer
system of the blood CO2+H2O →H2CO3 → HCO3- +H+
Which of the following equations shows the reaction that takes place when there are
excessive H+ ions?
o H2CO3 → CO2 + H2O
HCO3- + H+ → H2CO3
o CO2 + H2O → H2CO3
o H2CO3 → HCO3- +H+

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12. A student investigating the importance of wavelengths above and below the
visible spectrum for photosynthesis sets up an experiment as follows over a 2
month period, all with illumination at 1 meter distance from plants grown with
the same sol and watering conditions
3 Arabidopsis plant exposed to ultraviolet light (UV)
3 Arabidopsis plants exposed to infrared light (IR)
3 Arabidopsis plants exposed to white light
At the end of the experiment, she finds that the IR treated plants are scorched, the UV
treated plants have wilted, but the white light created plants are growing normally. Which of
the following statements is most likely to be correct?
o Three plants do not produce sufficient replications to draw a conclusion
o Wavelength of lights the only variable that has been changed between groups
o The wavelength of light does not affect photosynthesis
o Infracted light contains more energy than the other wavelengths.
13. Which of the following is a weakness of a correlational study?
o Cannot be replicated
o Cannot determine causation
o Inability to control independent variables
o Too many variables to control
14. A vasectomy is a procedure in which the vas deferens are cut. Which of the
following describes why a vasectomy leads to infertility?
o The vasectomy blocks the movement of sperm from the prostate gland to the
bulbourethral gland

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o The vasectomy blocks the movement of sperm from the epididymis into
urethra o The vasectomy blocks the movement of sperm from the
ejaculatory duct into
the bulbourethral gland o The vasectomy blocks movement of sperm
from a testis into the epididymis
o
15. Lifelong protection after exposure to a virus such as chickenpox is due to which
of the following types of immunity?
o Nonspecific
o Innate
o Transplantation
o Active
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exam, writing essays, or completing school assignments. Facebook Accurate Kenyan (PM me
if you need anything).
16. An equal mass of which of the following states of matter could completely fill
either a
100 ml or 500 ml container?
o Gas o Solid
o Mixture
o Liquid
17. Carbon has an atomic number of 6. Which of the following is true about isotope
C-12
o C-12 possesses 7 neutrons and 5 electrons in its nucleus
o C-12 possesses 6 protons and 6 electrons in its nucleus
o C-12 possesses 6 neutrons and 6 protons in its nucleus
o C-12 possesses 7 protons and 5 neutrons in its nucleus.

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18. Permanent damage to which of the following types of tissues in the spinal cord
will cause paralysis
o Nervous tissue
o Muscle tissue
o Bone tissue
o Connective tissue
19. Which of the following statements about COVID-19 vaccine initiation is
supported
by the data below? **There is a graph not included**
o The highest daily rate occurred in December
o The cumulative total for January is around 13 million
o The cumulative total fell by 2 million between January 9 and January 10
o The daily rate for December 29 and January 5 are similar
20. How many times larger is the volume of a cube that is 4 mm on all sides
compared to the volume of a cube that is 2 mm on all sides (round the answer to
the nearest whole number) 8 times
21. A researcher collects high-resolution photographs of the earth taken from outer
space at annual intervals for the last decades. This data would be most useful to
analyse which of the following?
o Human movement during crises
o Migration patterns of large whales
o Weather patterns during hurricanes
o Deforestation in the rainforest
22. Identify the pathway of blood trough the components of the cardiovascular
system, starting with the blood entering the heart through the superior vena cava.

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(move the options into the box on the right, placing them in the selected order.
use all options)
o Pulmonary artery
o Lungs
o Right atrium
o Right ventricle
o Pulmonary valve
Correct order: Right atrium, right ventricle, pulmonic valve,
pulmonary artery, lungs
23. Which of the following body systems develop from the same origin tissue as
lungs?
o Genitourinary system
o Musculoskeletal system
o Neuromuscular system
o Gastrointestinal
24. A scientist predicts that germinating beans will use more oxygen than non-
germinating beans. This prediction is referred to as which of the following?
o A conclusion
o An observation
o A hypothesis
o Date collection
25. Which of the following processes causes most of the carbon dioxide from the
blood to move into alveoli?
o Active transport using energy
o Diffusion down a concentration gradient
o Conversion to carbon monoxide
o Passive transport using carrier proteins
26. Which of the following is a property of water?
o Water is made up of one molecule of hydrogen and two molecules of oxygen

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o Water dissolves polar ionic compounds
o Water requires less heat than ethanol to raise its temperature
o Solid water is denser than liquid water.
27. Which of the following elements has the smallest atomic radius
o Ge
o C
o Sn
o Si
28. Which of the following pancreatic secretions digests starch into disaccharides
o Trypsin
o Chymotrypsin
o Amylase
o lipase
29. Which of the following units is used to indicate mass?
o Cm3
o Irm
o Mg
o Ml
30. Histones are proteins associated with which of the following?
o Blood
o Sperm cells
o Hair follicles
o DNA

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31. When an ionic salt is dissolved in water, the ions CO3 and K+ are formed. Which is
the formula for the salt?
o KCO3
o K2CO3
o K3CO2
o K(CO3)2
32. A researcher is gathering large amounts of data about patients who have a common
disease and the effectiveness of various medications in comparison to a placebo.
Which of the following types of graphs is the best way for the researcher to present
the data?
o Line graph
o Pie chart
o Bar graph
o Flow chart
33. Which of the following describes why water has a concave, or downward-curving
meniscus when poured in a glass beaker?
o Glass has a higher density than water
o Water has a higher density than glass
o The adhesive forces with the glass are greater than the cohesive forces
o The cohesive forces with the glass are greater than that adhesive forces.
34. Which of the following statements correctly describes the change in coat coloring of
an arctic for from brown in summer to white in winter?
o The fox’s phenotype changes, but the genotype does not
o The fox’s genotype changes, but the phenotype does not
o Both the phenotype and genotype of the fox change
o Neither the phenotype nor the genotype of the fox change.

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35. Which of the following best describes adaptive immunity?
o The body’s barrier defences, such as mucous membranes and secretions
o The initiation of internal defences, such as phagocytes and natural killer cells
o The initiation of the inflammatory response
o A response to specific traits of specific pathogens.
36. If a portion of a strand of DNA bases reads 5’AGCTAGCGT 3’. What would the
sequence of bases on the complementary strand read?
o 3’TCGATCGCA5’ o 5’TCGUTCGU3’ o
5’UCGAUCGCA3’
o 3’AGCTAGCGT5’
37. Which of the following is a function of a catalyst?
o To increase the activation energy of a reaction
o To increase the rate of reaction
o To convert a nonspontaneous reaction to a spontaneous reaction
o To increase the product yield
38. Which of the following describes the process by which solid carbon dioxide (dry ice)
turns directly into carbon dioxide gas?
o Sublimation
o Deposition
o Condensation
o Evaporation
39. Which of the following occurs during inhalation?
o Air moves from areas of low pressure to areas of high pressure
o The diaphragm moves downwards
o The ribcage lowers
o The volume of the thoracic cavity decreases
40. Which of the following body cavities is subdivided into the thoracic and
abdominopelvic cavities?

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o Dorsal
o Cranial
o Ventral
o Vertebral
41. Which of the following layers of kin contains glands and hair follicles?
o Stratum lucidum
o Dermis
o Hypodermis
o Stratum corneum
42. Which of the following structures is present in both prokaryotic and eukaryotic cells?
o Endoplasmic reticulum
o Chloroplast
o Cell membrane
o Golgi apparatus
43. Which of the following is true if Koch’s postulates are met regarding a disease?
o The disease is caused by a microorganism
o The disease is hereditary
o The disease is the result of a dietary deficiency
o The disease is non-infectious.
44. Which of the following is a part of pulmonary circuit?
o Superior vena cava
o Pulmonary vein
o Bronchial artery
o Aorta
ACTUAL ATI TEAS
7 Science Exam 3
1. Which of the following is the appropriate threshold value for mammalian neurons?
o -80 Mv

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