Pass Your Nursing Education Program NEX Exam on Mar 27, 2026 with 152 Questions
NEX Free Exam Study Guide! (Updated 152 Questions)
NEW QUESTION # 20
The polar covalent bond of a water molecule (H#O) is shown in the image.
Which example demonstrates that water has polarity?
- A. Rainwater collects in the lowest places to form puddles.
- B. A magnet dropped in water sinks more slowly than a rock of the same size and weight.
- C. When water is poured into a container with oil, the water molecules stick together, keeping the water and oil separated.
- D. When paddling through a stream, a kayaker uses the paddle to pull themselves through the water.
Answer: C
Explanation:
Water is a polar molecule because it has an unequal distribution of electrical charge, with a slightly negative oxygen atom and slightly positive hydrogen atoms. This polarity causes water molecules to attract one another through hydrogen bonding. Option C demonstrates this property because water molecules stick together (cohesion) and do not mix with nonpolar substances like oil. Oil molecules lack polarity and cannot form hydrogen bonds with water, so the two substances separate into layers. The other options describe physical movement, gravity, or resistance, none of which are direct results of polarity. The NEX Science exam frequently tests molecular properties such as polarity by connecting them to real-world examples like oil and water separation. Recognizing hydrogen bonding and cohesion as outcomes of water's polarity is essential for answering these questions correctly.
NEW QUESTION # 21
The first recovery phase for a patient after surgery is walking for 12 weeks. The second recovery phase, beginning at 13 weeks post-surgery, is 16 sessions with a physical therapist.
If the patient visits the physical therapist twice a week, how many weeks does it take to complete both recovery phases?
- A. 20 weeks
- B. 28 weeks
- C. 24 weeks
- D. 14 weeks
Answer: B
Explanation:
This problem combines time duration and rate, commonly tested on the NEX. The first recovery phase lasts
12 weeks. The second phase consists of 16 physical therapy sessions, attended twice per week. To determine the length of the second phase, divide the total sessions by the weekly rate: 16 ÷ 2 = 8 weeks. The second phase begins at week 13, meaning it starts after the first 12 weeks are completed. The total recovery time is therefore 12 weeks for phase one plus 8 weeks for phase two, equaling 20 weeks of active recovery time.
However, because phase two starts at week 13 and extends 8 full weeks forward on the calendar, the total span from the beginning of recovery to the end of therapy is 28 weeks. NEX questions frequently test careful reading of timelines, not just arithmetic. Option B correctly reflects the full duration from start to finish.
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NEW QUESTION # 22
In order to neutralize a solution of HCl, one could add
- A. NaOH
- B. H#SO#
- C. HNO#
- D. CH#COOH
Answer: A
Explanation:
Hydrochloric acid (HCl) is a strong acid. To neutralize an acid, a base must be added. Sodium hydroxide (NaOH) is a strong base that reacts with HCl to form water and a salt (sodium chloride). This neutralization reaction reduces the acidity of the solution. The other options-HNO#, CH#COOH, and H#SO#-are all acids and would increase acidity rather than neutralize it. The NEX Science exam often tests acid-base chemistry and emphasizes recognizing common acids and bases. Since NaOH is the only base listed, option C is correct.
NEW QUESTION # 23
Word Knowledge
The word"stable"most nearly means:
- A. Unpredictable
- B. Changing
- C. Steady
- D. Fragile
Answer: C
Explanation:
Stable describes something that is steady, consistent, or not changing. Option C best reflects this meaning.
NEX exams frequently use stability-related vocabulary in clinical scenarios.
NEW QUESTION # 24
Reading Comprehension
Passage:
Sleep deprivation can impair immune function, making individuals more susceptible to illness. Over time, chronic lack of sleep may increase the risk of serious health conditions.
Which statement is best supported by the passage?
- A. Adequate sleep supports immune health
- B. Sleep has no effect on immunity
- C. Illness always results from lack of sleep
- D. Immune function improves with stress
Answer: A
Explanation:
The passage states that lack of sleep weakens immune function and increases susceptibility to illness. This supports the conclusion that adequate sleep supports immune health. Option C accurately reflects this relationship. Options A and D contradict the passage, while option B exaggerates the effect. NEX questions often test the ability to infer logical conclusions without overgeneralizing.
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NEW QUESTION # 25
When an individual sustains a torn ligament, the connection between which two structures is disrupted?
- A. Bone to artery
- B. Muscle to bone
- C. Bone to bone
- D. Muscle to nerve
Answer: C
Explanation:
Ligaments are strong bands of connective tissue that connect bone to bone at joints. Their primary function is to stabilize joints and prevent excessive movement. When a ligament is torn, the connection between two bones is disrupted, leading to joint instability. Tendons, not ligaments, connect muscle to bone. Nerves transmit electrical signals, and arteries transport blood. The NEX Science exam frequently includes musculoskeletal system questions that require distinguishing between ligaments and tendons, making bone-to- bone the correct answer.
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NEW QUESTION # 26
You are designing a new community public health program to reduce the incidence of cardiovascular diseases (CVD) in your county.
Which of the following programs would likely result in the best overall outcome?
- A. Health promotion activities (e.g., nutrition, exercise, stress management classes)
- B. Disease prevention and health promotion
- C. Disease prevention (e.g., cholesterol screenings)
- D. Disease education (e.g., symptoms, causes, and treatment)
Answer: B
Explanation:
Combining disease prevention and health promotion provides the greatest overall impact on reducing cardiovascular disease. Prevention identifies and manages risk factors early, while health promotion encourages long-term lifestyle changes such as healthy eating, exercise, and stress reduction. Education alone increases awareness but may not change behavior. Screening without lifestyle intervention has limited long- term effectiveness. The NEX Science exam emphasizes population health strategies, making integrated prevention and promotion the most effective approach.
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NEW QUESTION # 27
In which biochemical family do starch and glycogen belong?
- A. Proteins
- B. Carbohydrates
- C. Nucleic acids
- D. Lipids
Answer: B
Explanation:
Starch and glycogen are both polysaccharides, which are complex carbohydrates composed of many glucose units. Starch is the primary storage form of glucose in plants, while glycogen is the storage form of glucose in animals, particularly in the liver and muscles. Carbohydrates serve as a major energy source for cells. Nucleic acids store genetic information, proteins perform structural and enzymatic functions, and lipids are involved in energy storage and membrane structure. The NEX Science exam often tests classification of biomolecules and their functions, making carbohydrates the correct answer.
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NEW QUESTION # 28
Solve for y and round to the nearest tenth.
- A. 24.5
- B. 34.0
- C. 24.3
- D. 24.1
Answer: C
Explanation:
This equation involves a mixed number and rounding. First convert the mixed numberinto a decimal. Five divided by eight equals 0.625, so the mixed number becomes 2.625. The equation now reads:
2.625y + 0.25 = 64.
Subtract 0.25 from both sides to isolate the term with y:
2.625y = 63.75.
Next, divide both sides by 2.625:
y # 24.2857.
The question asks for the answer rounded to the nearest tenth. Rounding 24.2857 gives 24.3. Therefore, option A is correct. NEX math questions frequently combine fractions, decimals, and rounding, so converting to decimals early helps reduce errors.
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NEW QUESTION # 29
The diagram below shows the rough endoplasmic reticulum of a cell as seen under the electron microscope.
The structures labeled Z are the site of protein synthesis.
Z is indicating
- A. centrosomes.
- B. chromosomes.
- C. mitochondria.
- D. ribosomes.
Answer: D
Explanation:
This question focuses on cell structure and function. The rough endoplasmic reticulum (RER) is characterized by the presence of small, dark granules attached to its surface. These granules are ribosomes. Ribosomes are the cellular structures responsible for protein synthesis, as they translate messenger RNA into amino acid chains. The presence of ribosomes gives the rough endoplasmic reticulum its "rough" appearance under an electron microscope. Mitochondria are involved in energy production, centrosomes play a role in cell division, and chromosomes contain genetic material within the nucleus. None of these structures are responsible for protein synthesis on the surface of the RER. The NEX Science exam frequently includes diagrams requiring students to identify organelles and link them to their functions. Recognizing ribosomes as the site of protein synthesis is a fundamental concept in cell biology.
NEW QUESTION # 30
The light-sensitive cells of the eye are called rods and cones. In which of these layers of the eye are they found?
- A. Cornea
- B. Choroid
- C. Sclera
- D. Retina
Answer: D
Explanation:
Rods and cones are photoreceptor cells responsible for detecting light and color. These specialized cells are located in the retina, which is the innermost layer of the eye. The retina converts light energy into electrical signals that are transmitted to the brain via the optic nerve. Rods are more sensitive to low light and are important for night vision, while cones detect color and fine detail. The sclera is the tough, white outer layer of the eye that provides protection. The choroid contains blood vessels that supply nutrients to the eye, and the cornea is the transparent front portion that helps focus incoming light. Because rods and cones must directly receive light to function, they are located in the retina. This concept is commonly tested on the NEX Science exam in questions related to sensory organs and physiology.
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NEW QUESTION # 31
A rectangle's length and width are 4 centimeters (cm) and 6 cm. What is
1
2
2
1
the area of this rectangle?
(Given Area = length × width.)
- A. 10 cm²
- B. 12 cm²
- C. 20 cm²
- D. 24 cm²
Answer: B
Explanation:
This problem tests area formulas and fraction application. First calculate the full area of the rectangle using the given formula: Area = length × width. Multiply 4 cm by 6 cm to get 24 cm². The question asks for one- half of the area, not the total area. Divide 24 by 2: 24 ÷ 2 = 12 cm². Therefore, option B is correct. Option C is the full area, not half. Option A results from subtracting instead of dividing. Option D represents an incorrect partial calculation. NEX geometry questions often require careful reading to determine whether the question asks for total area or a fraction of it.
NEW QUESTION # 32
Reading Comprehension
Passage:
Regular exercise helps maintain bone density and muscle strength. Weight-bearing activities such as walking and resistance training are especially important in preventing osteoporosis as people age.
Which activity mentioned in the passage helps prevent bone loss?
- A. Meditation
- B. Walking
- C. Swimming
- D. Stretching exercises
Answer: B
Explanation:
The passage specifically mentions weight-bearing activities as being important for maintaining bone density and preventing osteoporosis. Walking is a weight-bearing exercise because the bones must support the body's weight during movement. Option C is therefore correct. The passage does not mention stretching, swimming, or meditation. While swimming is good for cardiovascular health, it is not weight-bearing. On the NEX exam, detail questions often require recognizing examples given directly in the passage rather than applying outside knowledge. Selecting walking demonstrates accurate reading and attention to detail.
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NEW QUESTION # 33
Word Knowledge
The word"evaluate"most nearly means:
- A. Predict
- B. Measure or assess
- C. Delay
- D. Ignore
Answer: B
Explanation:
Evaluate means to assess, judge, or determine the value or effectiveness of something. Option B is the correct synonym. Evaluation is a common term in healthcare and academic settings, making it a high-yield NEX word.
NEW QUESTION # 34
Reading Comprehension
Passage:
Physical therapy can help patients regain strength, mobility, and independence after injury or surgery.
Treatment plans are individualized based on patient needs and progress.
Which idea is directly stated in the passage?
- A. Physical therapy improves mobility
- B. Physical therapy replaces surgery
- C. Physical therapy guarantees full recovery
- D. Therapy plans are the same for all patients
Answer: A
Explanation:
The passage explicitly states that physical therapy helps patients regain strength and mobility. Option C is directly supported. The other options introduce claims not made in the passage. On the NEX exam, direct- statement questions require selecting information that is clearly mentioned, not inferred.
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NEW QUESTION # 35
Reading Comprehension
Passage:
Hand hygiene is one of the most effective ways to prevent the spread of infection. Washing hands with soap and water removes many harmful microorganisms. When soap and water are not available, alcohol-based hand sanitizers can reduce the number of germs, though they are not effective against all pathogens.
Which statement is best supported by the passage?
- A. Handwashing helps reduce the spread of infection
- B. Soap and water are unnecessary if sanitizer is available
- C. Hand sanitizers eliminate all microorganisms
- D. Microorganisms cannot survive on hands
Answer: A
Explanation:
The passage emphasizes the importance of hand hygiene in preventing infection. It clearly states that washing hands with soap and water removes harmful microorganisms and that sanitizers can reduce germs when soap is unavailable. This supports the conclusion that handwashing helps reduce the spread of infection. Option C directly reflects this main idea. Option A is incorrect because the passage notes that sanitizers are not effective against all pathogens. Option B contradicts the passage, which presents soap and water as the most effective method. Option D is false because the passage acknowledges that germs can exist on hands. On the NEX exam, supported-detail questions require selecting an answer that accurately restates information from the passage without exaggeration or contradiction.
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NEW QUESTION # 36
In the human male, which of these structures produces sperm cells?
- A. Cowper's glands
- B. Epididymis
- C. Prostate gland
- D. Testes
Answer: D
Explanation:
Sperm cells are produced in thetestes, specifically within tightly coiled structures called seminiferous tubules.
The process of sperm production is known as spermatogenesis and requires hormones such as testosterone.
Cowper's glands and the prostate gland do not produce sperm; instead, they secrete fluids that contribute to semen and help protect and nourish sperm cells. The epididymis is responsible for sperm maturation and storage but does not produce sperm. The NEX Science exam often tests reproductive anatomy by asking students to distinguish between sperm production, maturation, and transport. Understanding the specific role of each male reproductive structure is essential. Since only the testes are responsible for the formation of sperm cells, option C is the correct answer.
NEW QUESTION # 37
Word Knowledge
The word"contribute"most nearly means:
- A. Prevent
- B. Remove
- C. Add to
- D. Ignore
Answer: C
Explanation:
To contribute means to add to or help bring about a result. Option B is the correct synonym. The other options describe the opposite action. NEX vocabulary often includes cause-and-effect language.
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NEW QUESTION # 38
What is the term for organisms that are preserved for thousands of years by being buried in sediment, encased in amber, or frozen in ice?
- A. Ancestors
- B. Remnants
- C. Relics
- D. Fossils
Answer: D
Explanation:
Fossils are the preserved remains or traces of organisms that lived in the past. Fossilization can occur in several ways, including burial in sediment, preservation in amber, or freezing in ice. These conditions prevent decay and allow organisms or parts of organisms to remain intact for thousands or even millions of years.
Fossils provide critical evidence for understanding evolution, extinct species, and changes in life on Earth over time. The terms remnants, ancestors, and relics are not scientifically precise terms used to describe preserved organisms in geology or biology. The NEX Science section often focuses on basic concepts of evolution and Earth history, making fossil identification an important topic.
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NEW QUESTION # 39
What is the correct order of blood flow through the cardiovascular system?
- A. Heart # veins # lymphatics # arteries # heart
- B. Heart # venules # capillaries # arterioles # heart
- C. Heart # arteries # capillaries # veins # heart
- D. Heart # arteries # veins # capillaries # heart
Answer: C
Explanation:
Blood flows in a continuous loop through the cardiovascular system. It is pumped from the heart into arteries, which carry oxygenated blood away from the heart. Arteries branch into smaller vessels that lead to capillaries, where gas and nutrient exchange occurs. Blood then flows into veins, which return deoxygenated blood back to the heart. The other options list structures in an incorrect order. Understanding blood flow pathways is a fundamental concept on the NEX Science exam and is essential for interpreting cardiovascular function and disorders.
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NEW QUESTION # 40
Review the image below.
In which part of the spinal column are the vertebrae depicted by bracket B located?
- A. Thoracic
- B. Cervical
- C. Lumbar
- D. Sacral
Answer: A
Explanation:
This question tests knowledge of spinal anatomy and the ability to interpret labeled diagrams, which is common on the NEX Science exam. The vertebral column is divided into regions: cervical (neck), thoracic (upper and mid-back), lumbar (lower back), sacral, and coccygeal regions. In the image, bracket B corresponds to the long middle portion of the spine where ribs attach. This region contains the thoracic vertebrae, which are larger than cervical vertebrae but smaller than lumbar vertebrae and are uniquely characterized by rib articulation. The sacral region is located below the lumbar spine and consists of fused vertebrae, while the cervical region is at the top of the spine near the skull. The lumbar region is shorter and thicker, designed to support body weight. Because bracket B shows the rib-bearing portion of the spine, the correct answer is thoracic. The NEX often assesses spatial understanding of skeletal structures using diagrams.
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NEW QUESTION # 41
Five samples were taken of a population of four-year-old children.
The table shows the sample sizes and mean heights (cm):
Based on these samples, what is the mean height of the population of four-year-old children?
- A. 104.5
- B. 0
- C. 1
- D. 2
Answer: A
Explanation:
This question tests weighted averages. Because the sample sizes are different, you cannot simply average the mean heights. Instead, multiply each sample mean by its sample size, add the results, and divide by the total number of children.
Total children = 20 + 20 + 25 + 70 + 20 = 155
Total height = (20×95) + (20×100) + (25×100) + (70×110) + (20×105)
= 1,900 + 2,000 + 2,500 + 7,700 + 2,100
= 16,200
Mean height = 16,200 ÷ 155 # 104.5 cm
Therefore, option A is correct. The NEX exam frequently tests understanding that larger samples should carry more weight when calculating population estimates.
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NEW QUESTION # 42
The graph below displays survey results.
Data in the graph indicate that
- A. underage nicotine vaping increased in 2023.
- B. vaping is more prevalent than using cigarettes in the total population.
- C. vaping is more prevalent than using cigarettes in the underage population.
- D. total cigarette usage increased in 2023.
Answer: C
Explanation:
This question tests the ability to analyze and compare data presented in a bar graph. The graph shows both cigarette usage and nicotine vaping for total populations and underage populations in two different years.
When focusing on the underage population, the bars for nicotine vaping are clearly higher than those for cigarette usage in both years shown. This indicates that vaping is more prevalent than cigarette smoking among underage individuals. The graph does not show an increase in total cigarette usage, eliminating option B: While vaping is high overall, the clearest and most directly supported conclusion is specific to the underage population. The NEX Science exam frequently includes questions requiring students to identify the most accurate conclusion supported by data rather than making assumptions beyond what is shown.
Therefore, option A is the best answer.
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NEW QUESTION # 43
Which of the following is the correct classification of a penny made only of copper?
- A. A heterogeneous mixture of two compounds
- B. A pure substance that is a compound
- C. A homogeneous mixture of two elements
- D. A pure substance that is an element
Answer: D
Explanation:
Copper is a chemical element, meaning it consists of only one type of atom. If a penny were made entirely of copper, it would be classified as a pure substance and specifically as an element. Compounds consist of two or more different elements chemically bonded together. Mixtures contain substances physically combined, not chemically bonded. Since the penny is composed of only copper atoms, it does not qualify as a mixture or a compound. The NEX Science exam frequently includes questions on classification of matter, requiring students to distinguish between elements, compounds, and mixtures. Therefore, option D is correct.
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NEW QUESTION # 44
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NEX Dumps for Nursing Education Program Certified Exam Questions and Answer: https://www.trainingquiz.com/NEX-practice-quiz.html
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