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Quiz Session - Attempts With Random Questions

HESI A2 Exam Questions

Page 2 of 74

21.

Read the following sentence, and select the meaning of the italicized word.

Patients with renal failure require their urinary output to be monitored.

  • Relating to the kidneys

  • Relating to the heart

  • Relating to blood vessels

  • Relating to the nervous system and blood vessels

Correct answer: Relating to the kidneys

The term "renal" means relating to the kidneys. Patients with kidney failure require their urinary output to be monitored.

The term "cardiac" means relating to the heart. The term "vascular" means relating to blood vessels. The term "neurovascular" means relating to the nervous system and blood vessels.

22.

When silver nitrate and potassium chloride combine, they form silver chloride and potassium nitrate. This is an example of which of the following?

  • Double replacement

  • Decomposition

  • Single replacement

  • Combustion

Correct answer: Double replacement

An example of double replacement is when silver nitrate and potassium chloride combine to form silver chloride and potassium nitrate. Double replacement occurs when two ionic compounds combine and form two new ionic compounds that have switched partners.

Decomposition occurs when a compound is broken down into its component parts. Single replacement occurs when an active metal reacts with an ionic compound that contains a less active metal to form a new compound. Combustion is an exothermic chemical reaction that occurs when heat acts on oxygen or a fuel compound.

23.

"He has an incredible amount of business 'acumen'; his decisions have never steered this company wrong!"

Which of the following best defines the word "acumen"?

  • Insight

  • Interest

  • Luck

  • Zest

Correct answer: Insight

Acumen is the ability to make good judgments and quick decisions; typically in a particular domain such as business.

24.

The chemical bond formed when two atoms share electrons is known as a(n) ______ bond.

  • Covalent

  • Ionic

  • Polyatomic

  • Crystal

Correct answer: Covalent

The chemical bond formed when two atoms share electrons is known as a covalent bond. By definition, a covalent bond is one that allows the sharing of electrons. A single covalent bond is the sharing of one pair of electrons, whereas a double covalent bond is formed when two electron pairs are shared. The covalent bond is the strongest of any chemical bond.

25.

Did John get accepted into the nursing program?

What type of sentence is the above sentence?

  • Interrogative

  • Declarative

  • Imperative

  • Exclamatory

Correct answer: Interrogative

The given sentence is an interrogative sentence. An interrogative sentence is a sentence that asks a question.

A declarative sentence makes a statement. An imperative sentence makes a command or a request. An exclamatory sentence makes an exclamation.

26.

Read the passage and then answer the following question:

What can logically be inferred from this passage?

  • Kristen had particular preferences for the type of dress she wanted to buy

  • Kristen bought a beautiful dress

  • Kristen went shopping alone

  • Kristen went to the dance this weekend

Correct answer: Kristen had particular preferences for the type of dress she wanted to buy

When choosing a statement that can be logically inferred from the passage, it needs to have a basis in the passage. In this case, the passage lists Kristen's particular preferences for the type of dress she wanted to buy.

27.

A Punnett square is a diagram used to predict the genotype and phenotype of sexually reproduced offspring. What is the genotype?

  • The combination of alleles

  • The traits that will be expressed

  • The alternative versions of a gene

  • None of these

Correct answer: The combination of alleles

By using a diagram called a Punnett square, it is possible to predict genotypes and phenotypes of the offspring of sexual reproduction.

For every trait expressed in a sexually reproducing organism, there are at least two alternative versions of a gene, called alleles.

A genotype is the combination of alleles. It is the genetic makeup of an individual organism. An individual's genotype functions as a set of instructions for the growth and development of its body. A phenotype represents the traits that will be expressed. It is the observable physical or biochemical characteristics of an individual organism, determined by both genetic makeup and environmental influences (i.e., height, weight, hair color, eye color, and skin color).

If both of the alleles are the same type, the organism is said to be homozygous. If the alleles are different types, the organism is said to be heterozygous.

In a Punnet square, alleles are placed one per column for one gene and one per row for the other gene. The Punnet square can be used to cross any number of different traits simultaneously. A probability of phenotypes that will be produced can be determined.

28.

The pancreas is an endocrine system gland mainly responsible for which of the following?

  • Maintaining healthy blood sugar levels

  • Proper bone development

  • Distribution of stored fat

  • Metabolism control

Correct answer: Maintaining healthy blood sugar levels

The pancreas is an endocrine system gland mainly responsible for maintaining healthy blood sugar levels. The pancreas is located behind the stomach.

The parathyroid gland plays a vital role in proper bone development. The adrenal glands are responsible for the distribution of stored fat. The thyroid is responsible for metabolism control.

29.

Solve:

6⁴

  • 1,296

  • 36

  • 24

  • 4,096

Correct answer: 1,296

6⁴ is equivalent to 6×6×6×6 = 1,296.

Exponents can be denoted with a caret ^ or with superscript, which looks like a smaller number hovering above the base number.

30.

Convert to a ratio:

0.075

  • 3:40

  • 7:5

  • 1:25

  • 1:3

Correct answer: 3:40

Step 1: Convert the decimal to a fraction:

  • 0.075 = 75/1000

Step 2: Reduce:

  • 75/1000 ÷ 25/25 = 3/40

Step 3: Use the numerator as the first number and the denominator as the second number:

  • 3:40

31.

0.404 millimeters is equal to how many centimeters?

  • 0.0404 centimeters

  • 40.4 centimeters

  • 4.04 centimeters

  • 0.00404 centimeters

Correct answer: 0.0404 centimeters

One centimeter is equal to ten millimeters; therefore, 0.0404 centimeters is equal to 0.404 millimeters (0.404/10 = 0.0404).

32.

Which of the following options means "to voluntarily refrain from doing something"?

  • Abstain

  • Compensatory

  • Bilateral

  • Adhere

Correct answer: Abstain

Abstain means to voluntarily refrain from doing something.

Compensatory means offsetting a wrong. Bilateral means having presence on two sides. Adhere means to stick together.

33.

Which of the following identifies the passage's main idea?

  • We pay more taxes than we may realize

  • Some taxes are hidden

  • Taxes are much too high

  • Inheritance taxes and real estate taxes are unfair

Correct answer: We pay more taxes than we may realize

The main idea of this paragraph suggests that we pay more in taxes than we may realize. The supporting details point to the fact that taxes are higher than we think.

34.

Which of the following is unaffected by cellular differentiation?

  • DNA

  • Metabolism

  • Size

  • Shape

Correct answer: DNA

Cellular differentiation can change any aspect of the cell but rarely involves a change in the DNA. This is why a large range of cells can have identical genomes. Cellular differentiation is when a cell changes from one cell type to a different cell type.

Metabolism, size, and shape are affected by cellular differentiation.

35.

Which of the following contributes to the passage of substances into and out of the cell?

  • Cellular membrane

  • Mitochondria

  • Golgi apparatus

  • Chloroplasts

Correct answer: Cellular membrane

The cellular membrane is the most important component of the cell. It contributes to protection, communication, and the passage of substances into and out of the cell. The cell membrane itself consists of a bilayer of phospholipids with proteins, cholesterol, and glycoproteins peppered throughout. Because phospholipids are amphipathic (hydrophilic and lipophilic) molecules, this bilayer creates a hydrophobic region between the two layers of lipids, making it selectively permeable. Many of the proteins, which pass completely through the membrane, act as transport highways for molecular movement into and out of the cell.

36.

Which bone separates the nasal cavity from the brain and is the bone located deepest within the head?

  • Ethmoid bone

  • Occipital bone

  • Temporal bones

  • Sphenoid bone

Correct answer: Ethmoid bone

Unpaired Skull Bones

  1. Sphenoid bone: This is an unpaired skull bone that helps to make up part of the orbit of the eye and houses the pituitary gland.
  2. Ethmoid bone: This is an unpaired skull bone that makes up one part of the orbit of the eye, separates the nasal cavity from the brain and is the bone located deepest within the head. It differs from the other bones in the cranium in that it is a spongy bone opposed to a hard bone.
  3. Frontal bone: This is an unpaired skull bone at the very front of the skull that helps to make up the forehead and the orbit of the eye.
  4. Occipital bone: This is an unpaired skull bone at the back and bottom of the skull that contains a large oval hole (called the foramen magnum), which allows for the connection of the brain to the spinal cord.

Paired Skull Bones

  1. Temporal bones: This is a paired set of skull bones located on either side of the head that encase the middle and inner ear. The temporal bones are crucial in the anatomy of the ear.
  2. Parietal bones: This is a paired set of skull bones that form the roof of and part of the sides of the skull. Each parietal bone is shaped roughly like a curved rectangle.

37.

Select the meaning of the italicized word in the sentence below.

If the colon does not contract properly, the splenic flexure can become distended.

  • Swollen

  • Shrunken

  • Irritated

  • Sensitive

Correct answer: Swollen

Distend means to bulge or swell. If the colon does not contract properly, the splenic flexure can become swollen or begin to bulge.

Shrunken means to reduce in size. Irritated means to chase or inflame. Sensitive means responsive to external conditions.

38.

Choose the sentence that is grammatically correct.

  • John always smells fruit carefully before he eats it.

  • John always smells fruit carefully before him eats it.

  • John always smells fruit carefully before he eats them.

  • John always smells fruit carefully before him eats them.

Correct answer: John always smells fruit carefully before he eats it.

This sentence requires proper pronoun use. The antecedent "John" requires the pronoun "he," and the antecedent "fruit" requires the pronoun "it."

The other options are incorrect because they do not demonstrate proper pronoun use.

39.

Which of the following is a balanced equation representing the decomposition of lead (iV) oxide?

  • PbO2 --> Pb + O2

  • PbO2 --> Pb + 2O

  • PbO2 --> 2Pb + O

  • PbO --> Pb + O2

Correct answer: PbO2 --> Pb + O2

PbO2 --> Pb + O2 is a balanced equation representing the decomposition of lead (iV) oxide. The equation must be balanced properly. To accomplish this, the +2 charge of Pb must be balanced with oxygen. Since oxygen is a diatomic element, it will be paired with another oxygen when alone in an equation.

40.

Solve the following by dividing and reducing to the lowest common denominator.

10 1/3 ÷ 1/3 =

  • 31

  • 3 1/3

  • 33 1/3

  • 31 1/3

Correct answer: 31

1. Convert 10 1/3 to improper fraction

Use this rule: a b/c = (ac+b)/c

(10×3+1)/3 ÷ 1/3

2. Simplify 10×3 to 30

(30+1)/3 ÷ 1/3

3. Simplify 30+1 to 31

31/3 ÷ 1/3

4. Apply this rule: a ÷ b/c = a × c/b

31/3 × 3

5. Simplify

93/3

6. Simplify

31

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