what does ingest mean
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HESI A2

HESI A2 Vocabulary Practice Test

1. What does 'Ingest' mean?

Correct answer: B

Rationale: The correct answer is B: 'To swallow for digestion.' Ingest means to take food, drink, or another substance into the body by swallowing it. Choice A, 'To chew,' is incorrect as chewing is the act of breaking down food with the teeth. Choice C, 'To spit out,' is incorrect as it is the opposite of ingesting, involving expelling something from the mouth. Choice D, 'To vomit,' is also incorrect as vomiting is forcibly expelling the contents of the stomach through the mouth, which is the opposite of ingesting.

2. To the nearest whole number, what is the mass of one mole of hydrogen chloride?

Correct answer: C

Rationale: The molar mass of hydrogen chloride (HCl) is calculated by adding the atomic masses of hydrogen (H) and chlorine (Cl) together. The atomic mass of hydrogen is approximately 1 g/mol, and the atomic mass of chlorine is approximately 35.5 g/mol. Therefore, the molar mass of hydrogen chloride (HCl) is approximately 1 + 35.5 = 36.5 g/mol. When rounded to the nearest whole number, it is 36 g/mol. Therefore, the correct answer is 36 g/mol. Choices A, B, and D are incorrect as they do not reflect the accurate molar mass of hydrogen chloride.

3. What is the most visible part of the ear?

Correct answer: A

Rationale: The pinna, also known as the auricle, is the external part of the ear that is most visible. It helps in collecting sound waves and directing them into the ear canal for further processing by the ear structures. The pinna's visible location makes it easily identifiable as the prominent external feature of the ear. Choices B, C, and D are incorrect. The Organ of Corti is located within the cochlea and is responsible for converting sound vibrations into electrical signals. The cochlea is a spiral-shaped, fluid-filled structure in the inner ear that plays a crucial role in hearing. The ear canal is a passage that leads to the eardrum and is not the most visible part of the ear.

4. A reader might infer from this passage that NASA ___________.

Correct answer: C

Rationale: The passage suggests that NASA will use the findings from the twin study to plan future extended space missions.

5. What is the meaning of exocytosis?

Correct answer: B

Rationale: Exocytosis is the process by which a cell releases substances to the outside by fusing with the plasma membrane. During exocytosis, vesicles containing molecules fuse with the cell membrane, allowing the release of the contents outside the cell. This process is crucial for the secretion of various substances such as hormones, enzymes, and neurotransmitters. Choices A, C, and D are incorrect as they describe processes different from exocytosis. Choice A describes endocytosis, where the cell engulfs substances to bring them into the cell. Choice C is more aligned with pinocytosis, the process of engulfing liquid material. Choice D refers to phagocytosis, which is the uptake of solid particles by the cell.

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