TheoryHESI A2 Practice Questions
Free HESI A2 practice questions with answers and plain-English explanations. Browse the PDF, video and online mock test.
HESI A2 Questions
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Q1What is the average of the given expenditures, which are $79.84, $278.99, $342.16, $466.25, $111.39, $502.47, and $98.12?
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✓ Correct answer: $268.46
To calculate the average, we add up all the expenditures and divide the sum by the number of expenditures.<br/><br/>Sum of the given expenditures = $79.84 + $278.99 + $342.16 + $466.25 + $111.39 + $502.47 + $98.12 = $1879.22<br/><br/>Number of expenditures = 7<br/><br/>Average = Sum of expenditures / Number of expenditures = $1879.22 / 7 = $268.46<br/><br/>Therefore, the correct answer is B) $268.46.<br/><br/>Analysis of the wrong answer choices:<br/><br/>A) $278.99 - This is one of the given expenditures, so it is not the average.<br/><br/>C) $354.22 - This is not the correct average of the given expenditures.<br/><br/>D) $317.54 - This is not the correct average of the given expenditures.<br/><br/>The wrong answer choices (A, C, and D) do not accurately represent the average of the given expenditures.
Q2Max planted 35 tomato plants. If 20% of Max's tomato plants died as a result of harsh weather conditions, how many plants died?
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Q3Which number is represented by the Roman numeral XXVII?
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✓ Correct answer: 27
In Roman numerals, an “X” represents the number 10, a “V” represents 5, and “I” is representative of the number 1. In this problem we have 2 X’s, 1 V, and two II’s, which means we have two 10’s (20), one 5, and two 1’s (2). Written mathematically, 20 + 5 + 2 = 27.
Q4A store is pricing four lamps of different styles. Each one will be marked up differently. The cost of each lamp to the store and the desired markups are: Lamp 1 ($60) will be marked up 15% Lamp 2 ($80) will be marked up 20% Lamp 3 ($110) will be marked up 25% Lamp 4 ($150) will be marked up 30% The total price for all four lamps once they are marked up is which of the following?
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✓ Correct answer: $497.50
The total sales price of the four lamps will be $497.50.<br/><br/>Lamp 1 ($60) will be marked up 15% ($9) = sales price of $69<br/><br/>Lamp 2 ($80) will be marked up 20% ($16) = sales price of $96<br/><br/>Lamp 3 ($110) will be marked up 25% ($27.50) = sales price of $137.50<br/><br/>Lamp 4 ($150) will be marked up 30% ($45) = sales price of $195<br/><br/>Total sales price is $69 + $96 + $137.50 + $195 = $497.50.
Q5The adductor muscle serves to <code>________</code>, whereas the abductor muscle serves to <code>________</code>.
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✓ Correct answer: pull a body part toward the body’s midline; pull a body part away from the body’s midline
<em>Adductor</em> muscles are those that move a body part <em>toward</em> the body’s midline. This can be remembered by learning that the prefix <em>ad</em>- means <em>to</em> or <em>toward</em>. Contrastingly, <em>abductor</em> muscles are those that move a body part <em>away from</em> the body’s midline. This can be remembered by learning that the prefix <em>ab</em>- means <em>away from</em>.
Q6During which stage of cell division do chromosomes align their centromeres?
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✓ Correct answer: Metaphase
Mitosis is the process of cell division. Metaphase is the second stage of mitosis. During this stage, chromosomes align their centromeres at the midpoint. Prophase (choice A) is the first stage of cell division. Anaphase (choice C) is the fourth phase of mitosis where each pair of chromosomes is separated into two identical and independent chromosomes.
Q7Which of the following is<strong> NOT</strong> a portion of the small intestine?
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✓ Correct answer: divertculum
The pylorus is in the distal region of the stomach leading into the small intestine. The three portions in order are the duodenum, the jejunum, and the ileum. Diverticulum is a saclike bulge in the large intestine wall and is not part of the small intestine.
Q8An opportunistic pathogen is what?
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✓ Correct answer: A pathogen that inhabits the human body at all times, and only causes illness when the body's defenses are weakened.
About one half of all human disease is caused by pathogenic prokaryotes that invade the body from the outside, avoid internal defense systems in the body, and reproduce effectively enough to cause harm. Opportunistic pathogens are normal inhabitants of the body, that at most times cause no ill effect and only cause illness when the body's defenses are weakened.
Q9What organelle holds the cell’s DNA?
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✓ Correct answer: Nucleus
The nucleus is the most important organelle in eukaryotic cells because it hosts the genetic material.
Q10What are the components of DNA and RNA, which are the nucleic acid building blocks?
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✓ Correct answer: All of the answers are correct.
The building blocks of DNA and RNA, nucleic acids, consist of carbon, hydrogen, oxygen, nitrogen, and phosphorous.
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