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NEX Dumps – Kickstart your Career with Real Updated Questions [Q85-Q101]

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NEX Dumps – Kickstart your Career with Real Updated Questions

Earn Quick And Easy Success With NEX Dumps

NLN NEX Exam Syllabus Topics:

Section	Objectives
Mathematics	– Basic Arithmetic 1. Fractions, decimals, and percentages 2. Ratios and proportions – Word Problems 1. Dosage and medication calculations 2. Time, measurement, and unit conversions
Science	– Biology 1. Cell structure and function 2. Human body systems – Basic Chemistry 1. Basic chemical principles 2. Atomic structure and matter
Verbal Skills	– Reading Comprehension 1. Inference and conclusion drawing 2. Vocabulary in context 3. Main ideas and supporting details – Language Usage 1. Grammar and sentence structure 2. Word meaning and usage

Section

Objectives

Mathematics

– Basic Arithmetic

1. Fractions, decimals, and percentages
2. Ratios and proportions

– Word Problems

1. Dosage and medication calculations
2. Time, measurement, and unit conversions

Science

– Biology

1. Cell structure and function
2. Human body systems

– Basic Chemistry

1. Basic chemical principles
2. Atomic structure and matter

Verbal Skills

– Reading Comprehension

1. Inference and conclusion drawing
2. Vocabulary in context
3. Main ideas and supporting details

– Language Usage

1. Grammar and sentence structure
2. Word meaning and usage

QUESTION 85
Which microorganism is considered harmful or causes disease?

Enzyme

Immune factor

Vector

Pathogen

A pathogen is any microorganism that causes disease in a host. Pathogens include bacteria, viruses, fungi, and parasites. Enzymes are proteins that speed up chemical reactions and are not microorganisms. Immune factors are components of the immune system that protect against disease. A vector is an organism, such as a mosquito or tick, that transmits pathogens but does not itself cause disease. The NEX Science exam commonly assesses understanding of infectious disease terminology and distinctions between disease-causing organisms and disease carriers. Recognizing pathogens as the direct cause of illness is a key concept in microbiology and public health.
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QUESTION 86
A nurse needs to administer 0.75 liters of IV fluid over 3 hours. What is the flow rate in milliliters per hour?
(1 liter = 1,000 milliliters)

150 mL/hr

200 mL/hr

250 mL/hr

300 mL/hr

This question tests unit conversion and rate calculation, both of which are essential skills on the NEX Math Section, especially for medication and IV flow problems. First, convert liters to milliliters because flow rates are typically expressed in milliliters per hour. Since 1 liter equals 1,000 milliliters, multiply 0.75 liters by
1,000 to get 750 milliliters. Next, determine the flow rate by dividing the total volume by the total time. The fluid is administered over 3 hours, so divide 750 milliliters by 3 hours. This calculation gives 250 milliliters per hour. Therefore, the correct answer is option C. Option A results from dividing incorrectly, option B reflects underestimation, and option D would be correct only if the volume were larger. NEX exam questions often focus on proper setup of unit conversions before performing calculations. Always convert units first, then divide by time to find a rate.
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QUESTION 87
You are staining bacterial samples for identification and viewing them under a microscope.

Which bacterial shape do you observe in the sample?

Bacilli

Cocci

Spirochetes

Vibrios

This question tests knowledge of bacterial morphology, which is commonly assessed on the NEX Science exam. Bacteria are often classified based on their shape, which helps in identification and diagnosis. The image shows elongated, rod-shaped bacteria. This shape is characteristic ofbacilli. Bacilli are cylindrical or rod-like and are commonly found in many bacterial species, includingEscherichia coliandBacillus anthracis.
Cocci are spherical in shape, spirochetes are long and spiral-shaped, and vibrios have a curved, comma-like appearance. None of these shapes match the straight rod-like structures shown in the image. Identifying bacterial shape is an important first step in microbiology before further tests such as Gram staining or biochemical analysis are performed. The NEX exam frequently uses images or descriptions to assess whether students can correctly distinguish between cocci, bacilli, spirilla/spirochetes, and vibrios based on visual characteristics. Recognizing bacilli as rod-shaped bacteria is a key foundational concept.

QUESTION 88
The mean and standard deviation (SD) of the heights (in centimeters) of four groups of teenage boys are shown below:

Based on this information, which group has the least variability in height?

Group 2

Group 4

Group 1

Group 3

This question tests understanding of standard deviation as a measure of variability. The group with thesmallest standard deviation has the least variability. Comparing the values, Group 3 has the smallest SD at 6.9.
Therefore, option D is correct. The mean does not affect variability; only the SD matters in this comparison.
The NEX often includes questions where students must interpret statistical summaries rather than perform calculations. Remember that lower SD values indicate data points are more closely clustered around the mean.

QUESTION 89
Review the table of undisturbed sedimentary rock strata below.

According to the table, which of these fossils is the oldest?

Fossil A

Fossil B

Fossil D

Fossil C

This question tests understanding of the law of superposition, a fundamental principle in geology that is frequently tested on the NEX Science exam. The law of superposition states that in undisturbed sedimentary rock layers, the oldest layers are found at the bottom, while the youngest layers are found at the top. In the table shown, the soil surface is at the top, followed by Fossil D, Fossil C, Fossil B, and Fossil A at the bottom.
Because Fossil A is located in the lowest rock layer, it must be the oldest fossil. Fossils found in higher layers were deposited more recently. The key word in the question is “undisturbed,” which means the layers have not been mixed or overturned by geological processes. The NEX exam often emphasizes recognizing this clue to correctly apply the law of superposition. Therefore, Fossil A is the correct answer because it represents the earliest life form preserved in the rock strata.

QUESTION 90
In which biochemical family do starch and glycogen belong?

Carbohydrates

Nucleic acids

Proteins

Lipids

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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QUESTION 91
Review the image below.

In which part of the spinal column are the vertebrae depicted by bracket B located?

Sacral

Thoracic

Lumbar

Cervical

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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QUESTION 92
A student is traveling out of the United States to visit family living in Europe. The room booked for the trip costs €120.00 per night.
Given that $1.00 (US dollar) is equal to €1.2, how much will it cost per night in US Dollars?

$120.01

$144.00

$100.00

$120.00

This problem involves currency conversion. The exchange rate states that $1 equals €1.2. To convert euros to dollars, divide the euro amount by 1.2. Set up the calculation: €120 ÷ 1.2 = $100. Therefore, the cost per night in US dollars is $100. Option C is correct. Option B incorrectly multiplies instead of dividing. Options A and D fail to account for the exchange rate. NEX math problems involving currency emphasize understanding the direction of conversion and selecting the correct operation.
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QUESTION 93
What is the correct order of blood flow through the cardiovascular system?

Heart # arteries # capillaries # veins # heart

Heart # venules # capillaries # arterioles # heart

Heart # arteries # veins # capillaries # heart

Heart # veins # lymphatics # arteries # heart

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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QUESTION 94
A red flower (RR) and a white flower (WW) were cross-pollinated. The result was four pink flowers (RW).
This is best explained by

codominance

non-disjunction

multiple alleles

mutation

Codominance occurs when two different alleles are both expressed in a heterozygous organism. In this case, the red and white alleles combine to produce an intermediate pink phenotype. Non-disjunction refers to chromosome separation errors, multiple alleles involve more than two allele types, and mutations involve DNA changes. The NEX Science exam frequently tests inheritance patterns, including codominance and incomplete dominance.
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QUESTION 95
Given that 1 foot = 12 inches and 1 inch = 2.54 centimeters, approximately how many centimeters are there in
10 feet?

360

305

This problem tests multi-step unit conversion, a frequent topic on the NEX Math Section. First, convert feet to inches. Since 1 foot equals 12 inches, 10 feet equals 10 × 12 = 120 inches. Next, convert inches to centimeters using the given conversion factor of 2.54 centimeters per inch. Multiply 120 × 2.54 = 304.8 centimeters. The question asks for an approximate value, so rounding is appropriate. Rounding 304.8 gives approximately 305 centimeters. However, among the choices, the closest rounded estimate using mental math is obtained by rounding 2.54 to about 3. Using estimation: 120 × 3 = 360 centimeters, which corresponds to option A. The NEX often expects estimation when the word “approximately” is used. Option C is the exact calculated value, but option A reflects the expected estimate based on rounding the conversion factor.
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QUESTION 96
Review the image below.

If each division in the ocular micrometer below equals 25 micrometers, what is the length of the oval?

100 micrometers

500 micrometers

200 micrometers

400 micrometers

This question tests measurement interpretation using an ocular micrometer, a skill often assessed on the NEX Science exam. An ocular micrometer is a scale placed in the eyepiece of a microscope and must be interpreted based on the given scale value. In this problem, each division equals 25 micrometers. By carefully counting the number of divisions spanned by the oval in the image, the oval covers8 divisions. To find the total length, the number of divisions is multiplied by the micrometer value per division: 8 × 25 micrometers = 200 micrometers. The other answer choices represent common calculation errors, such as counting too few or too many divisions or using an incorrect multiplication factor. The key to these questions is slow, accurate counting and correct unit conversion. The NEX exam frequently includes microscopy-based questions to assess practical lab interpretation skills.
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QUESTION 97
Reading Comprehension
Passage:
Good nutrition is especially important during childhood because the body is growing rapidly. A diet lacking essential nutrients may result in delayed growth, weakened immunity, and difficulty concentrating in school.
Which consequence of poor nutrition is mentioned in the passage?

Improved athletic performance

Increased immunity

Delayed growth

Enhanced memory

The passage explains that childhood nutrition plays a critical role in growth and development. It specifically states that a lack of essential nutrients can lead to delayed growth, weakened immunity, and difficulty concentrating. Option C directly reflects one of the consequences listed in the passage, making it the correct answer. The other options are either the opposite of what is stated or not mentioned at all. NEX reading comprehension questions often test the ability to locate explicit information rather than inferred benefits.
Selecting delayed growth shows careful attention to the details provided in the passage.
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QUESTION 98
A car travels 15.6 miles on
3
4
4
3
of a gallon of gas. How many miles can the car travel on 5 gallons of gas?

20.8 miles

58.5 miles

104 miles

78 miles

This is a rate and proportion problem. First, determine how many miles the car travels per gallon. Since the car travels 15.6 miles on
3
4
4
3
of a gallon, divide: 15.6 ÷ 0.75 = 20.8 miles per gallon. Next, multiply this rate by the total number of gallons:
20.8 × 5 = 104 miles. Therefore, option C is correct. Option A represents miles per gallon, not total distance.
Option B is a partial multiplication error. Option D results from multiplying before finding the correct rate.
NEX questions frequently assess whether students can correctly identify unit rates before scaling up.
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QUESTION 99
Word Knowledge
The word”frequent”most nearly means:

Rare

Regular

Sudden

Severe

“Frequent” means occurring often or regularly. Option B is correct. Recognizing time- and frequency-related words is common on the NEX exam.
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QUESTION 100
A recipe for pancakes serves 4 people and requires 1.5 cups of flour.
If the cook wants to make enough pancakes to serve 8 people, how much flour is needed?

1.5 cups

8 cups

5.5 cups

3 cups

This is a proportional reasoning problem. If 4 people require 1.5 cups of flour, then doubling the number of people to 8 means doubling the amount of flour. Multiply 1.5 by 2:
1.5 × 2 = 3 cups.
Therefore, option D is correct. Option A is the original amount, not scaled. Option B greatly overestimates the amount. Option C results from incorrect multiplication. The NEX frequently includes scaling problems related to recipes, dosages, and supplies, so identifying when to multiply or divide is essential.
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QUESTION 101
Review the diagram below of the human eye.

Structure number 1 is necessary in order for the eye to

focus images on the retina.

protect itself from the entrance of foreign objects and debris.

regulate the amount of light entering the posterior chamber.

pick up light stimuli from the environment.

Structure number 1 in the diagram represents the lens of the eye. The lens plays a crucial role in focusing incoming light onto the retina so that clear images can be formed. It changes shape through a process called accommodation, allowing the eye to focus on objects at varying distances. Protection from debris is mainly the function of the cornea, eyelids, and eyelashes. Regulation of light entering the eye is controlled by the iris, which adjusts the size of the pupil. Picking up light stimuli is the role of rods and cones located in the retina.
Because the lens is responsible for bending and focusing light precisely onto the retina, option A is correct.
The NEX Science exam frequently tests the relationship between eye structures and their functions, particularly focusing mechanisms.
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NEX Practice Tests

NEX Dumps – Kickstart your Career with Real Updated Questions [Q85-Q101]

Exam Practice Questions

NEX Dumps – Kickstart your Career with Real Updated Questions [Q85-Q101]

NLN NEX Exam Syllabus Topics:

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