HESI A2
Biology HESI A2 2024
1. What takes place in a lysosome?
- A. Ribosomes are made.
- B. Food is produced.
- C. Water is stored.
- D. Food is digested.
Correct answer: D
Rationale: In a lysosome, food particles are digested through the action of enzymes. Lysosomes are membrane-bound organelles containing digestive enzymes that break down large molecules into smaller ones, allowing the cell to utilize the nutrients for energy and other processes. Choices A, B, and C are incorrect because ribosomes are not made in lysosomes, food is not produced in lysosomes, and lysosomes do not store water.
2. 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.
3. In a local baseball team, 4 players, which represent 5% of the team, have long hair, and the rest have short hair. How many short-haired players are there on the team?
- A. 72
- B. 74
- C. 76
- D. 78
Correct answer: C
Rationale: Given that 4 players represent 5% of the team, let's denote the total number of players as x. The equation to represent this situation is 0.05x = 4. Solving for x, we get x = 80, which is the total number of players on the team. Since 4 players have long hair, the remaining players have short hair, which is 80 - 4 = 76. Therefore, there are 76 short-haired players on the team. Choices A, B, and D are incorrect as they do not consider the total number of players correctly, leading to inaccurate calculations.
4. Multiply 12 by 15 and express the result as a decimal:
- A. 0.0018
- B. 0.018
- C. 0.18
- D. 1.8
Correct answer: D
Rationale: To find the product of 12 and 15, you simply multiply them together. 12 multiplied by 15 equals 180. To express 180 as a decimal, you divide by 100. Therefore, the correct answer is 1.8. Choices A, B, and C are incorrect as they represent values that are not the correct result of multiplying 12 by 15 and converting it to a decimal.
5. What is the meaning of qualms?
- A. Misgivings
- B. Habits
- C. Serenity
- D. Dispatches
Correct answer: A
Rationale: Qualms refer to feelings of doubt, hesitation, or uneasiness about something. They are typically used to describe a person's reservations or concerns about a decision or action. This aligns with the meaning of 'misgivings,' making it the correct choice in this context. Choices B, C, and D are incorrect. 'Habits' refer to regular tendencies or practices, 'Serenity' refers to a state of calm or peace, and 'Dispatches' refer to sending off to a destination or taking care of a task promptly, none of which capture the meaning of 'qualms.'
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