ATI TEAS 7
Chemistry
1. Which of the following is a characteristic of a solution with a high viscosity?
- A. It flows easily
- B. It has a low resistance to flow
- C. It has a high resistance to flow
- D. It does not mix with other liquids
Correct answer: c
Rationale: Solutions with high viscosity have a high resistance to flow. The other choices do not accurately describe high viscosity.
2. In technical writing, it's crucial to:
- A. Use informal language to connect with the audience.
- B. Emphasize your expertise with complex jargon.
- C. Explain concepts clearly and concisely for diverse readers.
- D. Prioritize creativity and artistic flair in your writing style.
Correct answer: C
Rationale: Technical writing aims to convey information accurately and understandably to various audiences, requiring clear and concise language.
3. The sentence "The audience was captivated by the speaker's compelling story" implies that the audience:
- A. Was bored and disinterested.
- B. Found the story confusing.
- C. Was completely absorbed and engaged.
- D. Disagreed with the speaker's message.
Correct answer: C
Rationale: "Captivated" suggests the audience was completely held by the speaker's story.
4. A medication dosage is listed as 1/4 gram. What is the equivalent dosage in milligrams (1 gram = 1000 milligrams)?
- A. 125mg
- B. 250mg
- C. 375mg
- D. 500mg
Correct answer: D
Rationale: Multiply the gram dosage (1/4) by the conversion factor (1000mg/gram) to get 250 milligrams.
5. A collection of organs working together to perform a specific physiological function is known as a(n):
- A. Tissue
- B. Organ system
- C. Organelle
- D. Organ
Correct answer: B
Rationale: The correct answer is B: Organ system. An organ system is a group of organs that work together to carry out a specific function in the body. While an organ is made up of different types of tissues that work together, an organ system involves multiple organs collaborating to perform more complex tasks. Tissues (option A) are groups of similar cells working together, organelles (option C) are structures within cells that have specific functions, and organs (option D) are made up of tissues and perform specific functions, but the term 'organ system' specifically refers to a higher level of organization involving multiple organs working in coordination.
6. What is the building block of DNA?
- A. Amino acid
- B. Nucleotide
- C. Nucleotide
- D. Fatty acid
Correct answer: B
Rationale: Rationale: - Amino acids are the building blocks of proteins, not DNA. - Nucleotide is the correct building block of DNA. A nucleotide consists of a sugar (deoxyribose in DNA), a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). - The option "C) Nucleotide" is a duplicate of the correct answer "B) Nucleotide." - Fatty acids are not the building blocks of DNA; they are a type of lipid molecule.
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