HESI A2
HESI A2 Chemistry Practice Test
1. What type of starch is glycogen?
- A. Plant starch
- B. Animal starch
- C. Glucose
- D. Cellulose
Correct answer: B
Rationale: Glycogen is classified as animal starch, not plant starch. It is the storage form of glucose in animals, primarily found in the liver and muscles. Choice A (Plant starch) is incorrect because glycogen is not derived from plants. Choice C (Glucose) is incorrect as glucose is a monosaccharide and not a type of starch. Choice D (Cellulose) is incorrect as cellulose is a structural polysaccharide found in plant cell walls, not the same as glycogen.
2. The dorsal body cavity is _______ to the ventral body cavity.
- A. medial
- B. deep
- C. posterior
- D. anterior
Correct answer: C
Rationale: The dorsal body cavity is positioned on the back (posterior) side of the body, whereas the ventral body cavity is on the front (anterior) side. Therefore, the dorsal body cavity is posterior to the ventral body cavity. Choice A, 'medial,' refers to a position toward the midline, not the back or front. Choice B, 'deep,' is a term used to describe structures that are further away from the surface, not their position in relation to each other. Choice D, 'anterior,' is the opposite of 'posterior' and refers to the front side of the body, not the back.
3. What is the meaning of plastic?
- A. Mechanical
- B. Durable
- C. Authentic
- D. Flexible
Correct answer: D
Rationale: The correct answer is D: Flexible. Plastic is a material that can be easily molded or shaped, known for its flexibility. It can bend and stretch without breaking, making it versatile and durable. Choices A, B, and C are incorrect because plastic is not primarily associated with being mechanical, authentic, or durable, but rather with its ability to be shaped and its flexibility.
4. Which word is NOT GRAMMATICALLY CORRECT? During the time he lived in New York, he worked as a writer, an editor, and a library.
- A. An
- B. Library
- C. As
- D. During
Correct answer: B
Rationale: The word 'library' is incorrect in this context. It should be 'librarian' to be grammatically correct. The other choices ('an,' 'as,' 'during') are all grammatically correct and fit appropriately in the sentence.
5. A medication dosage is listed as 1/2 teaspoon. What is the equivalent dosage in milliliters (1 teaspoon = 5ml)?
- A. 1.25ml
- B. 2.5ml
- C. 3.75ml
- D. 5ml
Correct answer: B
Rationale: Rationale: Given that 1 teaspoon is equal to 5ml, and the medication dosage is listed as 1/2 teaspoon, we need to find half of 5ml. 1/2 of 5ml = 5ml / 2 = 2.5ml Therefore, the equivalent dosage in milliliters for 1/2 teaspoon is 2.5ml.
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