HESI A2
HESI A2 Biology 2024
1. Which bacteria are spherical in shape?
- A. Clostridia
- B. Bacilli
- C. Spirilla
- D. Cocci
Correct answer: D
Rationale: The correct answer is D, Cocci. Bacteria that are spherical in shape are known as cocci. They can be found in various arrangements such as clusters, chains, or pairs. Examples of cocci bacteria include Staphylococcus aureus and Streptococcus pneumoniae. Choice A, Clostridia, consists of rod-shaped bacteria. Choice B, Bacilli, refers to rod-shaped bacteria as well. Choice C, Spirilla, are spiral-shaped bacteria, not spherical.
2. Convert 104°F to Celsius.
- A. 40°C
- B. 42°C
- C. 39°C
- D. 35°C
Correct answer: A
Rationale: To convert Fahrenheit to Celsius, you can use the formula: °C = (°F - 32) x 5/9. Plugging in the value, °C = (104 - 32) x 5/9 = 72 x 5/9 = 40°C. Therefore, 104°F is equal to 40°C. Choice A is correct. Choice B is incorrect as it is not the result of the conversion. Choice C is incorrect as it is not the result of the conversion. Choice D is incorrect as it is not the result of the conversion.
3. What does the quoted word 'adverse' mean in the following sentence? He complained of the 'adverse' side effects of his new medication.
- A. Undesirable
- B. Frequent
- C. Noticeable
- D. Constant
Correct answer: A
Rationale: The correct answer is A: 'Undesirable.' In this context, 'adverse' means harmful or undesirable, specifically referring to the negative side effects experienced from the medication. Choice B, 'Frequent,' is incorrect as 'adverse' does not imply how often the side effects occur but rather their nature. Choice C, 'Noticeable,' is incorrect as 'adverse' does not necessarily mean that the side effects are easily noticeable, but rather that they are harmful. Choice D, 'Constant,' is incorrect as 'adverse' does not indicate that the side effects are continuous but rather that they are negative.
4. Which phrase correctly completes the sentence? She went to the party ___ her dislike for the host.
- A. Despite of
- B. Even though
- C. Although
- D. In spite of
Correct answer: D
Rationale: The correct phrase to complete the sentence is 'In spite of.' This phrase is used to indicate that an action is taken despite a particular circumstance or feeling. In this case, she went to the party in spite of her dislike for the host, meaning she attended the party regardless of her negative feelings towards the host. Choice A, 'Despite of,' is incorrect as the correct phrase is 'Despite,' without the preposition 'of.' Choice B, 'Even though,' is not the best fit in this context as it does not express the contrast between attending the party and disliking the host as effectively as 'In spite of.' Choice C, 'Although,' is also not the most suitable choice as it is used to introduce a contrast, but 'In spite of' provides a stronger emphasis on the contradiction between attending the party and disliking the host.
5. Change the following percentage to a decimal: 58%
- A. 0.58
- B. 5
- C. 0
- D. 0
Correct answer: A
Rationale: To convert a percentage to a decimal, move the decimal point two places to the left. Therefore, 58% as a decimal is 0.58. Choice B, 5, is incorrect as it does not represent the conversion of a percentage to a decimal. Choices C and D, both 0, are also incorrect as they do not reflect the correct conversion of 58% to a decimal.
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