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Quiz Session - Attempts With Random Questions

HESI A2 Exam Questions

Page 4 of 74

61.

Which muscle abducts the thigh and is located from the ilium to the greater trochanter?

  • Gluteus medius

  • Gluteus maximus

  • Sartorius

  • Gracilis

Correct answer: Gluteus medius

The gluteus medius muscle abducts the thigh and is located from the ilium to the greater trochanter.

The gluteus maximus muscle is located from the posterior iliac crest, sacrum, and coccyx to the gluteal tuberosity; it extends the thigh and hip. The sartorius muscle is located from the anterior superior iliac spine to the medial tibia; it flexes the leg at the knee and laterally rotates the thigh. The gracilis muscle is located from the inferior ramus of the pubis to the medial condyle of the tibia; it adducts the thigh at the hip.

62.

What do muscles produce that causes a cramping sensation during exercise?

  • Lactate

  • Oxygen

  • Anaerobic glycolysis

  • Glucose

Correct answer: Lactate

During exercise, muscles produce lactate, which causes a cramping sensation. Lactate is an acid.

During exercise, muscles do not receive enough oxygen; therefore, they need anaerobic glycolysis, which is a type of glucose.

63.

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

3/5 ÷ 1/4 =

  • 2 2/5

  • 1/5

  • 1 2/5

  • 2 1/5

Correct answer: 2 2/5

1. Apply this rule: a ÷ b/c = a × c/b

3/5 × 4

2. Simplify

12/5

3. Simplify

2 2/5

64.

Which of the following correctly shows the relationship between Kelvin and Celsius?

  • 0 Kelvin is -273 degrees Celsius

  • 100 Kelvin is 0 degrees Celsius

  • 0 Kelvin is 32 degrees Celsius

  • 273 Kelvin is 100 degrees Celsius

Correct answer: 0 Kelvin is -273 degrees Celsius

Because Kelvin is an extension of the Celsius scale, an increase of 100 K results in an increase of 100 degrees C. For example: -100 degrees C = 173 K; 0 degrees C = 273 K; and 100 degrees C = 373 K.

65.

Angela ordered office supplies for her unit. She ordered a case of paper for $63.10, a box of pens for $5.76, and a white binder for $4.19. What was the total cost of Angela's office supply order?

  • $73.05

  • $78.81

  • $68.86

  • $79.95

Correct answer: $73.05

This question can be solved by adding $63.10, $5.76, and $4.19.

1. Set up the long addition.

2. Calculate 0 + 6 + 9, which is 15. Since 15 is two-digit, we carry the first digit 1 to the next column.

3. Calculate 1 + 7 + 1, which is 9. Now add the carry digit of 1, which is 10. Since 10 is two-digit, we carry the first digit 1 to the next column.

4. Calculate 3 + 5 + 4, which is 12. Now add the carry digit of 1, which is 13. Since 13 is two-digit, we carry the first digit 1 to the next column.

5. Calculate 6 + 0 + 0, which is 6. Now add the carry digit of 1, which is 7.

6. Therefore, 63.10 + 5.76 + 4.19 = 73.05.

66.

The central nervous system is made up of all except which of the following?

  • Heart

  • Spinal cord

  • Brain

  • Retina

Correct answer: Heart

The heart is not part of the central nervous system, as it is part of the circulatory system.

The central nervous system consists of the brain, spinal cord, and retina. The central nervous system is responsible for processing all of the information received from one's body parts.

67.

Which of the following options describes an atom that is in an ionic state?

  • An atom that is electrically charged

  • An atom that contains mostly empty space

  • An atom with a full orbit

  • An atom that contains electron clouds

Correct answer: An atom that is electrically charged

An atom that is in an ionic state is one that is electrically charged. An ionic state generally occurs when the atom is in a chemical compound.

68.

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

Maintaining good hygiene is very important for both overall aesthetics and health.

  • Cleanliness

  • Clothing

  • Processes

  • Hydration

Correct answer: Cleanliness

Hygiene is defined as the measures contributing to cleanliness and overall health. Maintaining good cleanliness habits is very important for both overall aesthetics and health.

69.

During photosynthesis in green plants, light energy is captured and used to convert all except which of the following into oxygen and energy-rich organic compounds?

  • Metals

  • Water

  • Carbon dioxide

  • Minerals

Correct answer: Metals

Light energy does not convert metals, as metals have a high reflectivity of light.

Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Photosynthesis consists of two different stages: the light reactions and the Calvin cycle. Light reactions are those that convert solar energy to chemical energy. The cell accomplishes the production of adenosine triphosphate (ATP) by absorbing light and using that energy to split a water molecule and transfer the electron, thus creating nicotinamide adenine dinucleotide phosphate (NADPH) and producing ATP. These molecules are then used in the Calvin cycle to produce sugar.

The sugar produced is polymerized and stored as a polymer of glucose. These sugars are consumed by organisms or by the plant itself to produce energy by cellular respiration.

70.

Which type of bond is formed when a hydrogen atom is attracted to a highly electronegative element?

  • Hydrogen bond

  • Ionic bond

  • Covalent bond

  • Chemical bond

Correct answer: Hydrogen bond

A hydrogen bond is formed when a hydrogen atom is attracted to a highly electronegative element. Hydrogen bonding is an intermolecular force.

An ionic bond is formed when two oppositely charged ions are electrostatically attracted. A covalent bond is formed when two atoms share one electron from each atom. A chemical bond is formed when one atom, chemical, or element is joined to another.

71.

Find the value of x by solving the following proportion.

21:63 = 24:x

  • 72

  • 56

  • 48

  • 12

Correct answer: 72

1. Convert proportion to a fraction

21/63 = 24/x

2. Simplify 21/63 to 1/3

1/3 = 24/x

3. Multiply both sides by x

1/3 x = 24

4. Simplify 1/3 x to x/3

x/3 = 24

5. Multiply both sides by 3

x = 72

72.

Which of the following is not a principal function of the respiratory system?

  • Regulation of blood pressure

  • Absorption of oxygen

  • Discharge of carbon dioxide

  • Speech

Correct answer: Regulation of blood pressure

The principal functions of the respiratory system are the absorption of oxygen, discharge of carbon dioxide, acid-base balance, and speech. The principal organs of the respiratory system are the nose, pharynx, larynx, trachea, bronchi, and lungs.

The regulation of blood pressure is a principal function of the urinary system, not the respiratory system.

73.

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

4 1/8 x 4 =

  • 16 1/2

  • 16 1/8

  • 8 1/8

  • 8 1/2

Correct answer: 16 1/2

1. Convert 4 1/8 to improper fraction

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

(4×8+1)/8 × 4

2. Simplify 4×8 to 32

(32+1)/8 × 4

3. Simplify 32+1 to 33

33/8 × 4

4. Simplify

132/8

5. Simplify

33/2

6. Convert to mixed fraction

16 1/2

74.

What hormone is associated the most with men?

  • Testosterone

  • Estrogen

  • Adrenaline

  • Cortisol

Correct answer: Testosterone

Testosterone influences male characteristics such as a deep voice or body hair; it also affects sperm cell development. Testosterone is produced by the interstitial cells between the seminiferous tubules in the testis.

Estrogen is only a female hormone. Adrenaline, or epinephrine, is a hormone that is released when a male or female feels a strong emotion. Cortisol is a life sustaining adrenal hormone that is essential for males and females.

75.

Which of the following molecules is generally in the form of polymers of sugar?

  • Carbohydrates

  • Water

  • Lipids

  • Proteins

Correct answer: Carbohydrates

Carbohydrates are generally long chains, or polymers, of sugars. A polymer is a large molecule, or macromolecule, composed of many repeated subunits. Carbohydrates have many functions and serve various purposes. The most important of these are storage, structure, and energy. Carbohydrates form the backbone of important molecules such as DNA and RNA.

76.

Convert to a ratio:
7/9

  • 7:9

  • 1:3

  • 1:9

  • 2:5

Correct answer: 7:9

The fraction's numerator becomes the first number, and its denominator becomes the second number: 7:9.

77.

The s-block of the periodic table consists of which two groups?

  • Alkali metals and alkaline earth metals

  • Boron and carbon

  • Lanthanoids and actinoids

  • Chalcogens and halogens

Correct answer: Alkali metals and alkaline earth metals

The s-block of the periodic table consists of alkali metals and alkaline earth metals.

The p-block of the periodic table consists of boron, carbon, nitrogen, chalcogens, halogens, and noble gases. The f-block of the periodic table consists of lanthanoids and actinoids.

78.

A dietician is teaching a class made up of diabetics and nondiabetics in a ratio of 1:2. If there are eight diabetics in the class, how many total students are in the class?

  • 24

  • 12

  • 4

  • 36

Correct answer: 24

There are a total of 24 students in the class.

To solve the problem, let x represent the unknown number of total students in the class. There are 3 students in the sample given (1 + 2). Use the following equation to solve for x:

1/3 = 8/x

Cross multiply: 1x = 3 × 8

1x = 24

x = 24/1

x = 24

There are 24 total students in the class.

79.

What type of joint allows only a slight amount of movement?

  • Amphiarthrosis

  • Synarthrosis

  • Diarthrosis

  • Carpathrosis

Correct answer: Amphiarthrosis

Amphiarthroses allow a slight amount of movement. An example of an amphiarthrosis joint is the pubic symphysis of the hips.

Synarthroses do not permit movement. Diarthroses are freely movable joints. Carpathroses is incorrect because it is not a type of joint.

80.

Identify the writer's purpose in the following passage:

  • Persuade

  • Inform

  • Entertain

  • Enhance

Correct answer: Persuade

The objective of this passage is to persuade the reader to recycle their aluminum cans. The writer provides examples of why we should recycle, and is prompting the reader to take action the next time they have the opportunity to recycle.

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